NCV7707 Door-Module Driver-IC The NCV7707 is a powerful Driver−IC for automotive body control systems. The IC is designed to control several loads in the front door of a vehicle. The monolithic IC is able to control mirror functions like mirror positioning, heating and folding including the electro−chromic mirror feature. Besides two half−bridge outputs to control lock and safe−lock motors, the device features four high−side outputs to drive LEDs or incandescent bulbs (up to 10 W). To allow maximum flexibility, all lighting outputs can be PWM controlled thru PWM inputs (external signal source) or by an internal programmable PWM generator unit. The NCV7707 is controlled thru a 24 bit SPI interface with in−frame response. http://onsemi.com SSOP36 EP CASE 940AB Features • Operating Range from 5.5 V to 28 V • Six High−Side and Six Low−Side Drivers Connected as • • • • • • • • • • • • • MARKING DIAGRAM Half−Bridges ♦ 2x Half−bridges Iload = 0.75 A; RDS(on) = 1.6 W @ 25°C ♦ 2x Half−Bridges Iload = 3 A; RDS(on) = 300 mW @ 25°C ♦ 2x Half−Bridges Iload = 6 A; RDS(on) = 150 mW @ 25°C Four High−Side Lamp Drivers ♦ 2x LED; Iload = 0.3 A; RDS(on) = 1.4 W @ 25°C ♦ 2x 10 W; configurable as LED Driver; Iload = 2.5 A; RDS(on) = 300 mW @ 25°C One High−Side Driver for Mirror Heating; Iload = 6 A; RDS(on) = 100 mW @ 25°C Electro Chromic Mirror Control ♦ 1x 6−Bit Selectable Output Voltage Controller ♦ 1x LS for EC Control; Iload = 0.75 A; RDS(on) = 1.6 W @ 25°C Independent PWM Functionality for All Outputs Integrated Programmable PWM Generator Unit for All Lamp Driver Outputs Programmable Soft−start Function to Drive Loads with Higher Inrush Currents as Current Limitation Value Multiplex Current Sense Analog Output for Advanced Load Monitoring Very Low Current Consumption in Standby Mode Charge Pump Output to Control an External Reverse Polarity Protection MOSFET 24−Bit SPI Interface for Output Control and Diagnostic Protection Against Short−circuit, Overvoltage and Over−temperature SSOP36−EP Power Package This is a Pb−Free Device NCV7707 AWLYYWWG A WL YY WW G = Assembly Location = Wafer Lot = Year = Work Week = Pb−Free Package ORDERING INFORMATION Device Package NCV7707DQR2G SSOP36−EP (Pb−Free) Shipping† 1500 / Tape & Reel †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specification Brochure, BRD8011/D. Typical Applications • De−centralized Door Electronic Systems • Body Control Units (BCUs) © Semiconductor Components Industries, LLC, 2014 May, 2014 − Rev. 2 1 Publication Order Number: NCV7707/D NCV7707 VS CHP NCV7707 Undervoltage Lockout VCC SI SCLK CSB SO Diagnostic Overvoltage Lockout Power−on Reset Chargepump VS short circuit openload overload overtemperature overvoltage undervoltage OUT1 VS CONTROL_0 Register Driver Interface OUT2 VS CONTROL_1 Register OUT3 CONTROL_2 Register VS OUT4 OUT4 CONTROL_3 Register VS PWM_7/8 Register OUT5 OUT5 PWM Unit PWM_9/10 Register VS OUT6 STATUS_0 Register VS OUT7 STATUS_1 Register VS OUT8 VS STATUS_2 Register OUT9 CONFIG Register VS Special Function Register OUT10 PWM1 VS PWM1 PWM2 OUT11 OUT11 ISOUT/PWM2 MUX 6 GND Figure 1. Block Diagram http://onsemi.com 2 DAC EC Control ECON ECFB NCV7707 Vbat blinker LED LED Switches VS OUT10 CHP footstep light 10W /LED OUT9 safety light 10W /LED OUT8 safety light OUT7 NCV7707 SI SCLK mC Charge Pump 24−bit Serial Data Interface SO Power−on Reset Logic IN PWM1 PWM CAN/LIN SBC (NCV7462) High−Side High−Side Switch Switch (0.3/1.4 W) (0.3/1.4 W) Protection: short circuit open load over temperature VS undervoltage VS overvoltage PWM Generator Unit CSB ISOUT/ PWM2 Rs High−Side High−Side Switch Switch (1.4 W) (1.4 W) Logic Control DAC EC Control Current Sensing High−Side Switch (0.3 W) High−Side Switch (0.15 W) High−Side Switch (0.15 W) High−Side High−Side High−Side Switch Switch Switch (1.6 W) (1.6 W) (0.3 W) Low−Side Switch (0.3 W) Low−Side Switch (0.15 W) Low−Side Switch (0.15 W) Low−Side Low−Side Switch Switch (1.6 W) (1.6 W) GND High−Side Switch (0.1 W) Low−Side Switch (0.3 W) Low−Side Switch (1.6 W) VCC OUT6 LIN (NCV7321) LIN OUT4 OUT5 OUT3 OUT2 lock safe lock mirror fold CAN OUT1 mirror y−axis ECON OUT10 mirror x−axis ECM Figure 2. Application Diagram GND OUT11 OUT1 OUT2 OUT3 VS VS SI ISOUT/PWM2 CSB SO VCC SCLK VS VS OUT4 OUT4 GND 1 36 18 19 Figure 3. Pin Connections (Top View) http://onsemi.com 3 GND OUT11 OUT10 OUT9 ECFB OUT8 OUT7 VS VS PWM1 CHP ECON VS VS OUT6 OUT5 OUT5 GND ECFB OUT11 mirror defroster NCV7707 PIN FUNCTION DESCRIPTION Pin No. Pin Name Pin Type 1 GND Ground Description 2 OUT11 HS driver Output Heater Output (has to be connected externally to pin 35) 3 OUT1 Half bridge driver Output Mirror common Output 4 OUT2 Half bridge driver Output Mirror x/y control Output 5 OUT3 Half bridge driver Output Mirror x/y control Output 6 VS Supply Battery Supply Input (all VS pins have to be connected externally) 7 VS Supply Battery Supply Input (all VS pins have to be connected externally) 8 SI Digital Input 9 ISOUT / PWM2 Digital Input / Analog Output 10 CSB Digital Input Ground Supply (all GND pins have to be connected externally) SPI interface Serial Data Input PWM control Input / Current Sense Output. This pin is a bidirectional pin. Depending on the selected multiplexer bits, an image of the instant current of the corresponding HS stage can be read out. This pin can also be used as PWM control input pin for OUT5, OUT8 and OUT10. SPI interface Chip Select 11 SO Digital Output 12 VCC Supply 13 SCLK Digital Input 14 VS Supply Battery Supply Input (all VS pins have to be connected externally) 15 VS Supply Battery Supply Input (all VS pins have to be connected externally) 16 OUT4 Half bridge driver Output Door Lock Output (has to be connected externally to pin 17) 17 OUT4 Half bridge driver Output Door Lock Output (has to be connected externally to pin 16) 18 GND Ground Ground Supply (all GND pins have to be connected externally) 19 GND Ground Ground Supply (all GND pins have to be connected externally) 20 OUT5 Half bridge driver Output Door Lock Output (has to be connected externally to pin 21) 21 OUT5 Half bridge driver Output Door Lock Output (has to be connected externally to pin 20) 22 OUT6 Half bridge driver Output Safe−Lock / Mirror Fold Output 23 VS Supply Battery Supply Input (all VS pins have to be connected externally) 24 VS Supply Battery Supply Input (all VS pins have to be connected externally) 25 SPI interface Serial Data Output Logic Supply Input SPI interface Shift Clock Electrochromic mirror control DAC output. If the Electrochrome feature is selected, this output controls an external Mosfet, otherwise it remains in high−impedance state. If the electrochrome feature is not used in the application and not selected via SPI the pin can be connected to VS. ECON ECM driver Output 26 CHP Analog Output 27 PWM1 Digital Input 28 VS Supply Battery Supply Input (all VS pins have to be connected externally) Battery Supply Input (all VS pins have to be connected externally) Reverse Polarity FET Control Output PWM control Input for OUT1−4, OUT6/7, OUT9, OUT11 29 VS Supply 30 OUT7 HS driver Output LED / Bulb Output 31 OUT8 HS driver Output LED / Bulb Output 32 ECFB ECM Input / Output 33 OUT9 HS driver Output LED Output 34 OUT10 HS driver Output LED Output 35 OUT11 HS driver Output Heater Output (has to be connected externally to pin 2) 36 GND Ground Ground Supply (all GND pins have to be connected externally) Heat slug Ground Substrate; Heat slug has to be connected to all GND pins Electrochromic Mirror Feedback Input, Fast discharge transistor Output http://onsemi.com 4 NCV7707 ABSOLUTE MAXIMUM RATINGS Symbol Min Max Unit Power supply voltage − Continuous supply voltage − Transient supply voltage (t < 500 ms, ”clamped load dump”) −0.3 −0.3 28 40 V VCC Logic supply −0.3 5.5 V Vdig DC voltage at all logic pins (SO, SI, SCLK, CSB, PWM1) −0.3 VCC + 0.3 V Current monitor output / PWM2 logic input −0.3 VCC + 0.3 V −25 Vs − 25 40 Vs + 15 V −0.3 Vs + 0.3 V Vs Visout/pwm2 Vchp Voutx, Vecon, Vecfb Rating Charge pump output (the most stringent value is applied) Static output voltage (OUT1−11, ECON, ECFB) Iout1/6 OUT1/6 Output current −5 5 A Iout2/3 OUT2/3 Output current −1.25 1.25 A Iout4/5 OUT4/5 Output current −10 10 A Iout7/8 OUT7/8 Output current −5 5 A Iout9/10 OUT9/10 Output current −1.25 1.25 A −10 10 A 1.25 A −2 −4 2 4 kV Iout11 OUT11 Output current Iout_ecfb ECFB Output current ESD_HBM ESD Voltage, Human Body Model (HBM); (100 pF, 1500 W) (Note 1) − All pins − Output pins OUT1−6 and ECFB to GND (all unzapped pins grounded) ESD_CDM ESD according to CDM (Charge Device Model) (Note 1) − All pins − Corner pins −500 −750 500 750 V Operating junction temperature range −40 150 °C Tstg Storage temperature range −55 150 °C MSL Moisture sensitivity level (Note 2) TJ MSL3 Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. 1. This device series incorporates ESD protection and is tested by the following methods: ESD Human Body Model tested per AEC−Q100−002 (EIA/JESD22−A114) ESD Charge Device Model tested per EIA/JES D22/C101, Field Induced Charge Model 2. For soldering information, please refer to our Soldering and Mounting Techniques Reference Manual, SOLDERRM/D THERMAL CHARACTERISTICS Symbol Rating Value Unit RθJA Thermal Characteristics, SSOP36−EP, 1−layer PCB Thermal Resistance, Junction−to−Air (Note 3) 42 °C/W RθJA Thermal Characteristics, SSOP36−EP, 4−layer PCB Thermal Resistance, Junction−to−Air (Note 4) 19.5 °C/W 3. Values based on PCB of 76.2 x 114.3 mm, 72 μm copper thickness, 20 % copper area coverage and FR4 PCB substrate. 4. Values based on PCB of 76.2 x 114.3 mm, 72 / 36 μm copper thickness (signal layers / internal planes), 20 / 90 % copper area coverage (signal layers / internal planes) and FR4 PCB substrate. http://onsemi.com 5 NCV7707 ELECTRICAL CHARACTERISTICS 4.5 V < VCC < 5.25 V, 8 V < Vs < 18 V, −40°C < TJ < 150°C; unless otherwise noted. Symbol Parameter Test Conditions Min Typ Max Unit 28 18 V 3.5 12 mA (9) (25) 8 20 mA 4.5 6 mA (15) (50) 6.5 8.4 mA 8 18 mA SUPPLY Vs Is(standby) Is(active) ICC(standby) Supply voltage Functional (see VUV_VS / VOV_VS) Parameter specification Supply Current (VS), Standby mode Standby mode, VS = 16 V, 0 V v VCC v 5.25 V, CSB = VCC, OUTx/ECx = floating, SI = SCLK = 0 V, TJ < 85°C (TJ = 150°C) 5.5 8 Active mode, Supply current (VS), Active VS = 16 V, mode OUTx/ECx = floating Supply Current (VCC), Standby mode Standby mode, VCC = 5.25 V, SI = SCLK = 0 V, TJ < 85°C (TJ = 150°C) Active mode, VS = 16 V, OUTx/ECx = floating ICC(active) Supply current (VCC), Active mode I(standby) Standby mode, Total Standby mode supply VS = 16 V, TJ < 85°C, current (Is + ICC) CSB = VCC, OUTx/ECx = floating OVERVOLTAGE AND UNDERVOLTAGE DETECTION Vuv_vs(on) Vuv_vs(off) Vuv_vs(hys) VS Undervoltage detection VS Undervoltage hysteresis Vov_vs(off) Vov_vs(on) VS Overvoltage detection VS increasing 5.6 6.2 V VS decreasing 5.2 5.8 V Vuv_vs(on) − Vuv_vs(off) 20 24.5 V VS decreasing 19 23.5 V VS Overvoltage hysteresis Vov_vs(off) − Vov_vs(on) Vuv_vcc(off) VCC Undervoltage detection VCC increasing Vuv_vcc(hys) td_uvov V VS increasing Vov_vs(hys) Vuv_vcc(on) 0.65 2 V 2.9 VCC decreasing 2 VCC Undervoltage hysteresis Vuv_VCC(off) − Vuv_VCC(on) VS Undervoltage / Overvoltage filter time Time to set the power supply fail bit UOV_OC in the Global Status Byte V V 0.11 6 V 100 ms CHARGE PUMP OUTPUT CHP Vchp8 Chargepump Output Voltage Vs = 8 V, Ichp = −60 mA Vs + 6 Vs + 9.5 Vs + 13 V Vchp10 Chargepump Output Voltage Vs = 10 V, Ichp = −80 mA Vs + 8 Vs + 11 Vs + 13 V Vchp12 Chargepump Output Voltage VS > 12 V, Ichp = −100 mA Vs + 9.5 Vs + 11 Vs + 13 V Ichp Chargepump Output current VS = 13.5 V, Vchp = Vs + 10 V −95 mA http://onsemi.com 6 −750 NCV7707 ELECTRICAL CHARACTERISTICS (continued) 4.5 V < VCC < 5.25 V, 8 V < Vs < 18 V, −40°C < TJ < 150°C; unless otherwise noted. Symbol Parameter Test Conditions Min Typ Max Unit MIRROR COMMON OUTPUT (X/Y, FOLD) OUT1 TJ = 25°C, Iout1 = ±1.5 A 0.3 W Ron_out1 On−resistance HS or LS Ioc1_hs Overcurrent threshold HS −5 −3 A Ioc1_ls Overcurrent threshold LS 3 5 A Vlim1 Vds voltage limitation HS or LS 2 3 V TJ = 125°C, Iout1 = ±1.5 A 0.6 Iuld1_hs Underload detection threshold HS −80 −5 mA Iuld1_ls Underload detection threshold LS 10 80 mA 2.5 12 ms 3 12 ms 1 12 ms 1.5 12 ms td_HS1(on) Output delay time, HS Driver on td_HS1(off) Output delay time, HS Driver off td_LS1(on) Output delay time, LS Driver on Time from CSB going high to V(OUT1) = 0.1·Vs / 0.9·Vs (on/off) Time from CSB going low to V(OUT1) = 0.9·Vs / 0.1·Vs (on/off) td_LS1(off) Output delay time, LS Driver off tdLH1 Cross conduction protection time, low−to−high transition including LS slew−rate 0.5 22 ms tdHL1 Cross conduction protection time, high−to−low transition including HS slew−rate 5.5 22 ms Ileak_act_hs1 Output HS leakage current, V(OUT1) = 0 V Active mode Ileak_act_ls1 Output pull−down current, Active mode −40 V(OUT1) = VS Ileak_stdby_hs1 Output HS leakage current, V(OUT1) = 0 V Standby mode Ileak_stdby_ls1 Output pull−down current, Standby mode td_uld1 Underload blanking delay td_old1 Overload shutdown blanking delay frec1L Recovery frequency, slow recovery mode frec1H dVout1 mA −16 100 160 mA −5 V(OUT1) = VS, TJ w 25°C V(OUT1) = VS, TJ < 25°C mA 120 175 mA 430 3000 ms 5 25 ms CONTROL_3.OCRF = 0 1 4 kHz Recovery frequency, fast recovery mode CONTROL_3.OCRF = 1 2 6 kHz Slew rate of HS driver Vs = 13.5 V, Rload = 16 W to GND 1 3 V/ms http://onsemi.com 7 80 2 NCV7707 ELECTRICAL CHARACTERISTICS (continued) 4.5 V < VCC < 5.25 V, 8 V < Vs < 18 V, −40°C < TJ < 150°C; unless otherwise noted. Symbol Parameter Test Conditions Min Typ Max Unit MIRROR X/Y POSITIONING OUTPUTS OUT2, OUT3 Ron_out2,3 On−resistance HS or LS Ioc2,3_hs Overcurrent threshold HS Ioc2,3_ls Overcurrent threshold LS Vlim2,3 Vds voltage limitation HS or LS TJ = 25°C, Iout2,3 = ±0.5 A W 1.6 TJ = 125°C, Iout2,3 = ±0.5 A 3 W −1.25 −0.75 A 0.75 1.25 A 2 3 V Iuld2,3_hs Underload detection threshold HS −30 −20 −10 mA Iuld2,3_ls Underload detection threshold LS 10 20 30 mA Time from CSB going high to V(OUT2,3) = 0.1·Vs / 0.9·Vs (on/ off) 2.5 12 ms 3 12 ms Time from CSB going low to V(OUT2,3) = 0.9·Vs / 0.1·Vs (on/ off) 1 12 ms 1 12 ms td_HS2,3(on) Output delay time, HS Driver on td_HS2,3(off) Output delay time, HS Driver off td_LS2,3(on) Output delay time, LS Driver on td_LS2,3(off) Output delay time, LS Driver off tdLH2,3 Cross conduction protection time, low−to−high transition including LS slew−rate 0.5 22 ms tdHL2,3 Cross conduction protection time, high−to−low transition including HS slew−rate 5.5 22 ms Ileak_act_hs2,3 Output HS leakage current, V(OUT2,3) = 0 V Active mode Ileak_act_ls2,3 Output pull−down current, Active mode −40 V(OUT2,3) = VS Ileak_stdby_hs2,3 Output HS leakage current, V(OUT2,3) = 0 V Standby mode Ileak_stdby_ls2,3 Output pull−down current, Standby mode td_uld2,3 Underload blanking delay td_old2,3 Overload shutdown blanking delay frec2,3L Recovery frequency, slow recovery mode frec2,3H dVout2,3 mA −16 100 160 mA −5 V(OUT2,3) = VS, TJ w 25°C V(OUT2,3) = VS, TJ < 25°C mA 120 175 mA mA 430 3000 ms 10 100 ms CONTROL_3.OCRF = 0 1 4 kHz Recovery frequency, fast recovery mode CONTROL_3.OCRF = 1 2 6 kHz Slew rate of HS driver Vs = 13.5 V, Rload = 64 W to GND 1 3 V/ms http://onsemi.com 8 80 2 NCV7707 ELECTRICAL CHARACTERISTICS (continued) 4.5 V < VCC < 5.25 V, 8 V < Vs < 18 V, −40°C < TJ < 150°C; unless otherwise noted. Symbol Parameter Test Conditions Min Typ Max Unit DOOR LOCK OUTPUTS OUT4, OUT5 Ron_out4,5 On−resistance HS or LS TJ = 25°C, Iout4,5 = ±3 A W 0.15 TJ = 125°C, Iout4,5 = ±3 A 0.3 W Ioc4,5_hs Overcurrent threshold HS TJ > 0°C −10 −6 A Ioc4,5_hs_ct Overcurrent threshold HS TJ v 0°C −10 −5.75 A Ioc4,5_ls Overcurrent threshold LS 6 10 A Vlim4,5 Vds voltage limitation HS or LS 2 3 V Iuld4,5_hs Underload detection threshold HS −300 −60 mA Iuld4,5_ls Underload detection threshold LS 60 300 mA td_HS4,5 (on) Output delay time, HS Driver on td_HS4,5 (off) Output delay time, HS Driver off td_LS4,5 (on) Output delay time, LS Driver on td_LS4,5 (off) Output delay time, LS Driver off tdLH4,5 tdHL4,5 Time from CSB going high to V(OUT4,5) = 0.1·Vs / 0.9·Vs (on/ off) 2.5 12 ms 3 12 ms Time from CSB going low to V(OUT4,5) = 0.9·Vs / 0.1·Vs (on/ off) 1 12 ms 1.5 12 ms Cross conduction protection time, low−to−high transition including LS slew−rate 0.5 22 ms Cross conduction protection time, high−to−low transition including HS slew−rate 5.5 22 ms Ileak_act_hs4,5 Output HS leakage current, V(OUT4,5) = 0 V Active mode Ileak_act_ls4,5 Output pull−down current, Active mode −40 V(OUT4,5) = VS Ileak_stdby_hs4,5 Output HS leakage current, V(OUT4,5) = 0 V Standby mode Ileak_stdby_ls4,5 Output pull−down current, Standby mode td_uld4,5 Underload blanking delay td_old4,5 Overload shutdown blanking delay frec4,5L Recovery frequency, slow recovery mode frec4,5H dVout4,5 mA −17 100 160 mA −5 V(OUT4,5) = VS, TJ w 25°C V(OUT4,5) = VS, TJ < 25°C mA 120 175 mA mA 430 3000 ms 10 25 ms CONTROL_3.OCRF = 0 1 4 kHz Recovery frequency, fast recovery mode CONTROL_3.OCRF = 1 2 6 kHz Slew rate of HS driver Vs = 13.5 V, Rload = 4 W to GND 1 3 V/ms http://onsemi.com 9 80 2 NCV7707 ELECTRICAL CHARACTERISTICS (continued) 4.5 V < VCC < 5.25 V, 8 V < Vs < 18 V, −40°C < TJ < 150°C; unless otherwise noted. Symbol Parameter Test Conditions Min Typ Max Unit SAFE LOCK, MIRROR FOLD OUTPUT OUT6 TJ = 25°C, Iout6 = ±1.5 A 0.3 W Ron_out6 On−resistance HS or LS Ioc6_hs Overcurrent threshold HS −5 −3 A Ioc6_ls Overcurrent threshold LS 3 5 A Vlim Vds voltage limitation HS or LS 2 3 V TJ = 125°C, Iout6 = ±1.5 A 0.6 Iuld6_hs Underload detection threshold HS −80 −5 mA Iuld6_ls Underload detection threshold LS 10 80 mA 2.5 12 ms 3 12 ms 1 12 ms 1.5 12 ms td_HS6(on) Output delay time, HS Driver on td_HS6(off) Output delay time, HS Driver off td_LS6(on) Output delay time, LS Driver on Time from CSB going high to V(OUT6) = 0.1·Vs / 0.9·Vs (on/off) Time from CSB going low to V(OUT6) = 0.9·Vs / 0.1·Vs (on/off) td_LS6(off) Output delay time, LS Driver off tdLH6 Cross conduction protection time, low−to−high transition including LS slew−rate 0.5 22 ms tdHL6 Cross conduction protection time, high−to−low transition including HS slew−rate 5.5 22 ms Ileak_act_hs6 Output HS leakage current, V(OUT6) = 0 V Active mode Ileak_act_ls6 Output pull−down current, Active mode V(OUT6) = VS Ileak_stdby_hs6 Output pull−down current, Standby mode V(OUT6) = 0 V Ileak_stdby_ls6 Output LS leakage current, V(OUT6) = VS, TJ w 25°C Standby mode V(OUT6) = VS, TJ < 25°C −40 mA −16 100 160 mA mA −5 120 175 mA mA 430 3000 ms 5 25 ms 80 td_uld6 Underload blanking delay td_old6 Overload shutdown blanking delay frec6L Recovery frequency, slow recovery mode CONTROL_3.OCRF = 0 1 4 kHz frec6H Recovery frequency, fast recovery mode CONTROL_3.OCRF = 1 2 6 kHz dVout6 Slew rate of HS driver Vs = 13.5 V, Rload = 16 W to GND 1 3 V/ms http://onsemi.com 10 2 NCV7707 ELECTRICAL CHARACTERISTICS (continued) 4.5 V < VCC < 5.25 V, 8 V < Vs < 18 V, −40°C < TJ < 150°C; unless otherwise noted. Symbol Parameter Test Conditions Min Typ Max Unit BULB / LED DRIVER OUTPUTS OUT7, OUT8 Ron_out7,8_ICB On−resistance to supply, HS switch, Bulb mode TJ = 25°C, Iout7,8 = −1 A Ron_out7,8_LED On−resistance to supply, HS switch, LED mode TJ = 25°C, Iout7,8 = −0.2 A 0.3 TJ = 125°C, Iout7,8 = −1 A 0.6 1.4 TJ = 125°C, Iout7,8 = −0.2 A 3 W W Ilim7,8_ICB Output current limitation to GND, Bulb mode −3.7 −2.5 A Ilim7,8_LED Overcurrent threshold, LED mode −1.1 −0.5 A Iuld7,8_ICB Underload detection threshold, Bulb mode −60 −5 mA Iuld7,8_LED Underload detection threshold, LED mode −15 −5 mA Output delay time, Driver td_OUT7,8_ICB(on) on, Bulb mode Output delay time, Driver td_OUT7,8_ICB(off) off, Bulb mode Output delay time, Driver td_OUT7,8_LED(on) on, LED mode Output delay time, Driver td_OUT7,8_LED(off) off, LED mode 15 Time from CSB going high to V(OUT7,8) = 0.1·Vs / 0.9·Vs (on/ off); Rload = 16 W 48 ms Time from CSB going high to V(OUT7,8) = 0.1·Vs / 0.9·Vs (on/ off); Rload = 64 W 21 48 15 48 ms 21 48 Ileak_act7,8 Output leakage current, Active mode V(OUT7,8) = 0 V −15 mA Ileak_stdby7,8 Output leakage current, Standby mode V(OUT7,8) = 0 V −5 mA Ileak_out_vs7,8 Output pull−down current V(OUT7,8) = VS td_uld7,8 Underload blanking delay td_old_ICB7,8 1 mA 430 3000 ms Overload shutdown blanking delay, Bulb mode 100 160 ms td_old_LED7,8 Overload shutdown blanking delay, LED mode only 10 100 ms frec7,8L Recovery frequency, slow recovery mode recovery CONTROL_3.OCRF = 0 1 2.1 kHz frec7,8H Recovery frequency, fast recovery mode (LED mode CONTROL_3.OCRF = 1 only) 2 6 kHz dVout7,8_ICB Slew rate, Bulb mode Vs = 13.5 V, Rload = 16 W 0.2 V/ms dVout7,8_LED Slew rate, LED mode Vs = 13.5 V, Rload = 64 W 0.2 V/ms dVout7,8_ocr Slew rate in overcurrent recovery mode Vs = 13.5 V, Rload = 5 W http://onsemi.com 11 1 2 3 V/ms NCV7707 ELECTRICAL CHARACTERISTICS (continued) 4.5 V < VCC < 5.25 V, 8 V < Vs < 18 V, −40°C < TJ < 150°C; unless otherwise noted. Symbol Parameter Test Conditions Min Typ Max Unit LED DRIVER OUTPUTS OUT9, OUT10 Ron_out9,10 On−resistance to supply, HS switch Ioc9,10 Overcurrent threshold Iuld9,10 Underload detection threshold td_OUT(on)9,10 Output delay time, Driver on td_OUT(off)9,10 Output delay time, Driver off TJ = 25°C, Iout9,10 = −0.2 A W 1.4 3 W −0.63 −0.38 A −16 −4 mA TJ = 125°C, Iout9,10 = −0.2 A Time from CSB going high to V(OUT9,10) = 0.1·Vs / 0.9·Vs (on/ off) 18 48 23 48 ms Ileak_act9,10 Output leakage current, Active mode V(OUT9,10) = 0 V −10 mA Ileak_stdby9,10 Output leakage current, Standby mode V(OUT9,10) = 0 V −5 mA Ileak_out_vs9,10 Output pull−down current V(OUT9,10) = VS 1 mA td_uld9,10 Underload blanking delay 250 750 ms Overload shutdown blanking delay 10 100 ms td_old_OUT9,10 frec9,10L Recovery frequency, slow recovery mode CONTROL_3.OCRF = 0 1 4 kHz frec9,10H Recovery frequency, fast recovery mode CONTROL_3.OCRF = 1 2 6 kHz dVout9,10 Slew rate Vs = 13.5 V, Rload = 64 W 0.2 TJ = 25°C, Iout11 = −3 A 0.1 V/ms HEATER OUTPUT OUT11 Ron_out11 On−resistance to supply, HS switch TJ = 125°C, Iout11 = −3 A W 0.2 W Ioc11 Overcurrent threshold −10 −6.0 A Iuld11 Underload detection threshold −300 −30 mA td_OUT11(on) td_OUT11(off) Output delay time, Driver on Output delay time, Driver off 3 12 3 12 Time from CSB going high to V(OUT11) = 0.1·Vs / 0.9·Vs (on/off) ms Ileak_act11 Output leakage current, Active mode V(OUT11) = 0 V −10 mA Ileak_stdby11 Output leakage current, Standby mode V(OUT11) = 0 V −5 mA Ileak_out11_vs Output pull−down current V(OUT11) = VS td_uld11 Underload blanking delay td_old_OUT11 Overload shutdown blanking delay 1 mA 430 3000 ms 5 25 ms frec11L Recovery frequency, slow recovery mode CONTROL_3.OCRF = 0 1 4 kHz frec11H Recovery frequency, fast recovery mode CONTROL_3.OCRF = 1 2 6 kHz dVout11 Slew rate Vs = 13.5 V, Rload = 4 W 1 3 V/ms http://onsemi.com 12 2 NCV7707 ELECTRICAL CHARACTERISTICS (continued) 4.5 V < VCC < 5.25 V, 8 V < Vs < 18 V, −40°C < TJ < 150°C; unless otherwise noted. Symbol Parameter Test Conditions Min Typ Max Unit ELECTROCHROMIC MIRROR CONTROL (ECFB, ECON) TJ = 25°C, Iecfb = 0.5 A Ron_ecfb On−resistance to GND, LS switch Ilim_ecfb_src Output current limitation to GND Vs = 13.5V, VCC = 5 V Vlim_ecfb Vds voltage limitation Iuld_ecfb Underload detection threshold td_ecfb(on) Output delay time, LS Driver on td_ecfb(off) Output delay time, LS Driver off W 1.6 3 W 0.75 1.25 A Output enabled 2 3 V Vs = 13.5 V, VCC = 5 V 10 20 30 mA 1 12 2 12 TJ = 125°C, Iecfb = 0.5 A Vs = 13.5 V, VCC = 5 V, Rload = 64 W, V(ECFB) = 0.9·VS / 0.1·VS (on /off) ms Output leakage current, LS Vecfb = Vs, Standby mode off Vecfb = Vs, Active mode −15 15 mA −10 10 mA td_uld_ecfb Underload blanking delay 430 3000 ms td_old_ecfb Overload shutdown blanking delay 10 100 ms Ileak_ecfb_stdby Ileak_ecfb_act dVecfb/dt(on/off) Vctrl_max DNL dV_ecfb Slew rate of ECFB, LS switch Vs = 13.5 V, VCC = 5 V, Rload = 64 W Maximum EC control voltage CONTROL_2.FSR = 1 1.4 1.6 CONTROL_2.FSR = 0 1.12 1.28 V Differential non linearity 1 LSB = 23.8 mV −1 1 LSB Voltage deviation between target and ECFB dV_ecfb = Vtarget – Vecfb, Iecon < 1 mA gain offset −5% −1 LSB +5% +1 LSB 5 V/ms V mV dV_ecfb_lo Difference voltage between dV_ecfb = Vtarget – Vecfb, target and ECFB sets flag Toggle bit STATUS_2.ECLO = 1 if Vecfb is below target 120 mV dV_ecfb_hi Difference voltage between dV_ecfb = Vtarget – Vecfb, target and ECFB sets flag Toggle bit STATUS_2.ECHI = 1 if Vecfb is above target −120 mV Vecon_min_hi Vecon_max_lo ECON output voltage range Iecon = −10 mA 4.5 5.5 Iecon = 10 mA 0 0.7 −100 −10 mA 10 100 mA Vtarget > Vecfb + 500 mV, Vecfb = 3.5 V Iecon ECON output current capability Vtarget < Vecfb – 500 mV, Vecon = 1 V, Vtarget = 1 LSB, Vecfb = 0.5 V V Recon_pd Pull−down resistance at ECON in fast discharge mode Vecon = 0.7 V, CONTROL_1.ECEN = 1, CONTROL_1.LSECFB = 1, CONTROL_1.DAC[5:0] = 0 5 kW Iq_econ ECON quiescent current Vecon = Vs, CONTROL_1.ECEN = 0 1 mA t_disc Auto−discharge pulse width Config.LSPWM=1 240 300 360 ms t_rec Auto−discharge blanking time Config.LSPWM=1 2.25 3 3.75 ms Vthdisc_abs PWM discharge threshold level V(ECON) (Note 5) Config.LSPWM=1 350 400 450 mV Vthdisc_diff PWM discharge threshold level V(ECON) – V(ECFB) (Note 5) Config.LSPWM=1 −50 0 50 mV 5. If V(ECON) < Vthdisc_abs or V(ECON)−V(ECFB) < Vthdisc_diff then ECON_LOW =1; see description in paragraph Controller for Electro−chromic Glass http://onsemi.com 13 NCV7707 ELECTRICAL CHARACTERISTICS (continued) 4.5 V < VCC < 5.25 V, 8 V < Vs < 18 V, −40°C < TJ < 150°C; unless otherwise noted. Symbol Parameter Test Conditions Min Typ Max Unit VCC − 1 V CURRENT SENSE MONITOR OUTPUT ISOUT/PWM2 Vis Current Sense output functional voltage range VCC = 5 V, Vs = 8−20 V 0 Current Sense output ratio OUT1/6 and 7/8 (low on−resistance bulb mode) Kis (Note 6) Current Sense output ratio OUT4/5 Current Sense output ratio OUT9/10 and 7/8 (high on−resistance LED mode) 10000 9200 K = Iout / Iis, 0 V v Vis v 4 V, VCC = 5 V 2000 Current Sense output ratio OUT11 Iis,acc (Notes 7 and 8) tis 4500 18000 Current Sense output accuracy OUT1/6 0 V v Vis v 4 V, VCC = 5 V Iout1/6 = 1−1.6 A, TJ w 25°C Iout1/6 = 1−1.6 A, TJ < 25°C Iout1/6 = 0.5−1 A; 1.6−2.9 A −10% − 2% FS −10% − 2% FS −22% − 2% FS 10% + 2% FS 15% + 2% FS 22% + 2% FS Current Sense output accuracy OUT4/5 0 V v Vis v 4 V, VCC = 5 V, Iout4/5 = 2.6−3.3 A, TJ w 25°C Iout4/5 = 2.6−3.3 A, TJ < 25°C Iout4/5 = 0.5−2.6 A; 3.3−5.9 A −10% − 2% FS −10% − 2% FS −22% − 3% FS 10% + 2% FS 19% + 2% FS 22% + 3% FS Current Sense output accuracy OUT7/8 (low on−resistance bulb mode) 0 V v Vis v 4 V, VCC = 5 V Iout7/8 = 0.6−0.7 A, TJ w 25°C Iout7/8 = 0.6−0.7 A, TJ < 25°C Iout7/8 = 0.5−0.6 A; 0.7−1.3 A −10% − 2% FS −10% − 2% FS −20% − 2% FS 10% + 2% FS 18% + 2% FS 20% + 2% FS Current Sense output accuracy OUT7/8 (high on−resistance LED mode) 0 V v Vis v 4 V, VCC = 5 V Iout7/8 = 0.14−0.16 A, TJ w 25°C Iout7/8 = 0.14−0.16 A, TJ < 25°C Iout7/8 = 0.1−0.14 A; 0.16−0.3 A −12%− 2% FS −12%− 2% FS −18% − 2% FS 12% + 2% FS 15% + 2% FS 18% + 2% FS Current Sense output accuracy OUT9/10 0 V v Vis v 4 V, VCC = 5 V Iout9/10 = 0.15−0.25 A Iout9/10 = 0.1−0.15 A; 0.25−0.4 A −12%− 2% FS −18% − 2% FS 12% + 2% FS 18% + 2% FS Current Sense settling time 0 V to FSR (full scale range) 6. Kis trimmed at 150°C to higher value of spec range to be more centered over temp range. 7. Current sense output accuracy = Isout−Isout_ideal relative to Isout_ideal 8. FS (Full scale) = Ioutmax/Kis http://onsemi.com 14 256 ms NCV7707 ELECTRICAL CHARACTERISTICS (continued) 4.5 V < VCC < 5.25 V, 8 V < Vs < 18 V, −40°C < TJ < 150°C; unless otherwise noted. Symbol Parameter Test Conditions Min Typ Max Unit 0.3·VCC V DIGITAL INPUTS CSB, SCLK, PWM1/2, SI Vinl Input low level Vinh Input high level Vin_hyst Input hysteresis VCC = 5 V 0.7·VCC V 500 mV Rcsb_pu CSB pull−up resistor VCC = 5 VCC 0 V < Vcsb < 0.7·VCC Rsclk_pd SCLK pull−down resistor VCC = 5 V, Vsclk = 1.5 V 30 60 220 kW SI pull−down resistor VCC = 5 V, Vsi = 1.5 V 30 60 220 kW Rpwm1_pd PWM1 pull−down resistor VCC = 5 V, Vpwm1 = 1.5 V 30 60 220 kW Rpwm2_pd PWM2 pull−down resistor VCC = 5 V, Vpwm2 = 1.5 V, current sense disabled 30 60 220 kW Ileak_isout Output leakage current current sense enabled −1 1 mA Pin capacitance 0 V < VCC < 5.25 V (Note 9) 10 pF Rsi_pd Ccsb / sclk / pwm1/2 30 120 250 kW DIGITAL INPUTS CSB, SCLK, SI; TIMING tsclk Clock period VCC = 5 V 1000 ns tsclk_h Clock high time 115 ns tsclk_l Clock low time 115 ns tset_csb CSB setup time, CSB low before rising edge of SCLK 400 ns tset_sclk SCLK setup time, SCLK low before rising edge of CSB 400 ns tset_si SI setup time 200 ns thold_si SI hold time 200 ns tr_in Rise time of input signal SI, SCLK, CSB 100 ns tf_in Fall time of input signal SI, SCLK, CSB 100 ns 5 10 ms 2 4 ms tcsb_hi_stdby Minimum CSB high time, switching from Standby mode tcsb_hi_min Minimum CSB high time, Active mode Transfer of SPI−command to input register, valid before tsact mode transition delay expires 9. Values based on design and/or characterization. http://onsemi.com 15 NCV7707 ELECTRICAL CHARACTERISTICS (continued) 4.5 V < VCC < 5.25 V, 8 V < Vs < 18 V, −40°C < TJ < 150°C; unless otherwise noted. Symbol Parameter Test Conditions Min Typ Max Unit 0.2·VCC V DIGITAL OUTPUT SO Vsol Output low level Iso = 5 mA Vsoh Output high level Iso = −5 mA Tristate leakage current Vcsb = VCC, 0 V < Vso < VCC Tristate input capacitance Vcsb = VCC, 0 V < VCC < 5.25 V (Note 9) Ileak_so Cso V 0.8·VCC −10 10 mA 10 pF DIGITAL OUTPUT SO; TIMING tr_so SO rise time Cso = 100 pF 80 140 ns tf_so SO fall time Cso = 100 pF 50 100 ns ten_so_tril SO enable time from tristate to low level Cso = 100 pF, Iload = 1 mA, pull−up load to VCC 100 250 ns tdis_so_ltri SO disable time from low level to tristate Cso = 100 pF, Iload = 4 mA, pull−up load to VCC 380 450 ns ten_so_trih SO enable time from tristate to high level Cso = 100 pF, Iload = −1 mA, pull−down load to GND 100 250 ns tdis_so_htri SO disable time from high level to tristate Cso = 100 pF, Iload = −4 mA, pull−down load to GND 380 450 ns SO delay time Vso < 0.3·VCC, or Vso > 0.7·VCC, Cso = 100 pF 50 250 ns td_so 9. Values based on design and/or characterization. 0.8 • VCC 0.2 • VCC CSB tset_csb tcsb_hi_min tsclk tri_in tset_sclk tf_in 0.8 • VCC SCLK 0.2 • VCC 0.2 • VCC tsclk_h tset_si tsclk_l thold_si 0.8 • VCC SI td_so ten_so_trix SO Valid Valid Valid 0.7 • VCC 0.3 • VCC Valid Valid 0.7 • VCC Valid Figure 4. SPI Signals Timing Parameters http://onsemi.com 16 NCV7707 ELECTRICAL CHARACTERISTICS (continued) 4.5 V < VCC < 5.25 V, 8 V < Vs < 18 V, −40°C < TJ < 150°C; unless otherwise noted. Symbol Parameter Test Conditions Min Typ Max Unit 160 °C THERMAL PROTECTION Tjtw_on Temperature warning threshold Tjtw_hys Thermal warning hysteresis Tjsd_on Thermal shutdown threshold, TJ increasing Junction temperature 160 Tjsd_off Thermal shutdown threshold, TJ decreasing Junction temperature 160 Tjsd_hys Thermal shutdown hysteresis 5 °C Tjsdtw_delta Temperature difference between warning and shutdown threshold 20 °C td_tx Filter time for thermal warning and shutdown Junction temperature 140 °C 5 TW / TSD Global Status bits 180 °C °C 10 100 ms 30 ms 300 ms 300 ms OPERATING MODES TIMING tact Time delay for mode change from Unpowered mode into Standby mode SPI communication ready after VCC reached Vuv_VCC(off) threshold tsact Time delay for mode change from Standby mode into Active mode Time until output drivers are enabled after CSB going to high and CONTROL_0.MODE = 1 tacts Time delay for mode change from Active mode into Standby mode via SPI Time until output drivers are disabled after CSB going to high and CONTROL_0.MODE = 0 170 INTERNAL PWM CONTROL UNIT (OUT7 – OUT10) PWMlo PWM frequency, low selection CONTROL_2.PWMI = 1, PWMx.FSELx = 0 135 170 190 Hz PWMhi PWM frequency, high selection CONTROL_2.PWMI = 1, PWMx.FSELx = 1 175 225 250 Hz http://onsemi.com 17 NCV7707 DETAILED OPERATING AND PIN DESCRIPTION General The NCV7707 provides six half−bridge drivers, five independent high−side outputs and a programmable PWM control unit for free configuration. Strict adherence to integrated circuit die temperature is necessary, with a static maximum die temperature of 150°C. This may limit the number of drivers enabled at one time. Output drive control and fault reporting are handled via the SPI (Serial Peripheral Interface) port. A SPI−controlled mode control provides a low quiescent sleep current mode when the device is not being utilized. A pull down is provided on the SI and SCLK inputs to ensure they default to a low state in the event of a severed input signal. A pull−up is provided on the CSB input disabling SPI communication in the event of an open CSB input. monitored for undervoltage conditions supporting a safe power−up transition. When Vs drops below the undervoltage threshold Vuv_vs(off) (Vs undervoltage threshold) all output stages are switched to high−impedance state and the global status bit UOV_OC is set. This bit is a multi information bit in the Global Status Byte which is set in case of overcurrent, Vs over− and undervoltage. In case of undervoltage the status bit STATUS_2.VSUV is set, too. Bit CONTROL_3.OVUVR (Vs under−/overvoltage recovery behavior) can be used to select the desired recovery behavior after a Vs under−voltage event. In case of OVUVR = 0, all output stages return to their programmed state as soon as Vs recovers back to its normal operating range. If OVUVR is set, the automatic recovery function is disabled thus the output stages will remain in high−impedance condition until the status bits have been cleared by the microcontroller. To avoid high current oscillations in case of output short to GND and low Vs voltage conditions, it is recommended to disable the Vs−auto−recovery by setting OVUVR = 1. Supply Concept Power Supply Scheme − VS and VCC The Vs power supply voltage is used to supply the half bridges and the high−side drivers. An all−internal chargepump is implemented to provide the gate−drive voltage for the n−channel type high−side transistors. The VCC voltage is used to supply the logic section of the IC, including the SPI interface. Due to the independent logic supply voltage the control and status information will not be lost in case of a loss of Vs supply voltage. The device is designed to operate inside the specified parametric limits if the VCC supply voltage is within the specified voltage range (4.5 V to 5.25 V). Between the operational level and the VCC undervoltage threshold level (Vuv_VCC) it is guaranteed that the device remains in a safe functional state without any inadvertent change to logic information. Chargepump In Standby mode, the chargepump is disabled. After enabling the device by setting bit CONTROL_0.MODE to active (1), the internal oscillator is started and the voltage at the CHP output pin begins to increase. The output drivers are enabled after a delay of tsact once MODE was set to active. Driver Outputs Output PWM Control For all half−bridge outputs as well as the high−side outputs the device features the possibility to logically combine the SPI−setting with a PWM signal that can be provided to the inputs PWM1 and ISOUT/PWM2, respectively. Each of the outputs has a fixed PWM signal assigned which is shown in Table 1. The PWM modulation is enabled by the respective bits in the control registers (CONTROL_2.OUTx_PWMx and CONTROL_3.OUTx_PWMx). In case of using pin ISOUT/PWM2, the application design has to take care of either disabling the current sense feature or to provide sufficient overdrive capability to maintain proper logic input levels for the PWM input. In addition to the external signal control, all lighting outputs (OUT7−10) can also be PWM controlled via an internal PWM generator unit. While the PWM frequency can be individually selected between 170 Hz and 225 Hz thru bits PWMx.FSELx, the duty cycle can be programmed with 7−bits resolution PWMx.PW[6:0]. The selection between the different signal sources for these outputs is performed by programming bit CONTROL_2.PWMI. Default value is 0 (external signal source). The general principle of the PWM generation control scheme is shown in Figure 5. Device / Module Ground Concept The high−side output stages OUT7−11 are designed to handle DC output voltage conditions down to −0.3 V and allow for short negative transient currents due to parasitic line inductances. Therefore the application has to take care that these ratings are not violated under abnormal operating conditions (module loss of GND, ground shift if load connected to external GND) by either implementing external bypass diodes connected to GND or a direct connection between load−GND and module−GND. Since these output stages are designed to drive resistive loads, restrictions on maximum inductance / clamping energy apply. The heat slug is not hard−connected to internal GND rail. It has to be connected externally. Power Up/Down Control In order to prevent uncontrolled operation of the device during power/up down, an undervoltage lockout feature is implemented. Both supply voltages (VCC and Vs) are http://onsemi.com 18 NCV7707 Table 1. PWM CONTROL SCHEME PWM Control Input Output CONTROL_2.PWMI = 0 CONTROL_2.PWMI = 1 OUT1 PWM1 PWM1 OUT2 PWM1 PWM1 OUT3 PWM1 PWM1 OUT4 PWM1 PWM1 OUT5 ISOUT/PWM2 ISOUT/PWM2 OUT6 PWM1 PWM1 OUT7 PWM1 PWM_7/8.PW7[6:0] OUT8 ISOUT/PWM2 PWM_7/8.PW8[6:0] OUT9 PWM1 PWM_9/10.PW9[6:0] OUT10 ISOUT/PWM2 PWM_9/10.PW10[6:0] OUT11 PWM1 PWM1 CONTROL_2/3.OUTx_PWMx PWM enable PWM1/2 external PWM source internal clock f2 Prescaler f1 H … CT=0 Counter 7 Bit H… Enable Output & S internal PWM source R 7 A A>B B PWM_x/y.FSELx CONTROL_2.PWMI 7 PWM_x/y.PWx[6:0] SPI Figure 5. PWM Generation Diagram Programmable Soft−start Function to Drive Loads with Inrush Current Behavior real overload condition can only be qualified by time. It is recommended to only enable auto−recovery for a minimum amount of time to drive the connected load into a steady state condition. After turning off the auto−recovery function, the respective channel is automatically disabled if the overload condition still persists. Loads with startup currents higher than the overcurrent limits (e.g. inrush current of bulbs, block current of motors and cold resistance of heaters) can be driven using the programmable soft−start function (Overcurrent auto−recovery mode). Each output driver provides a corresponding overcurrent recovery bit (CONTROL_2/3.OCRx) to control the output behavior in case of a detected overcurrent event. If auto−recovery is enabled, the device automatically re−enables the output after a programmable recovery time. For all half−bridge outputs as well as the high−side outputs OUT9−11 and OUT7/8 in LED mode, the recovery frequency can be selected via SPI. OUT7/8 in bulb mode provides a fixed recovery frequency. The PWM modulated current will provide sufficient average current to power up the load (e.g. heat up the bulb) until the load reaches a steady state condition. The device itself cannot distinguish between a real overload and a non linear load like a bulb. Therefore a Inductive Loads Each half bridge (OUT1−6) is built by internally connected low−side and high−side N−MOS transistors. Due to the built−in body diodes of the output transistors, inductive loads can be driven at the outputs without external free−wheeling diodes. The high−side drivers OUT7 to OUT11 are designed to drive resistive loads. Therefore only a limited clamping energy (W < 1 mJ) can be dissipated by the device. For inductive loads (L > 100 mH) an external freewheeling diode connected between GND and the corresponding output is required. http://onsemi.com 19 NCV7707 the electro−chromic element. The target voltage at ECFB is binary coded with a selectable full scale range (bit CONTROL_2.FSR). The default clamping value for the output voltage (CONTROL_2.FSR = 0) is 1.2 V, by setting CONTROL_2.FSR to “1”, the maximum output voltage is 1.5 V. The resolution of the DAC output voltage is independent of the full−scale−range selection. The charging of the mirror (positive slope) is determined by the positive slew rate of the transconductance amplifier and the compensation capacitor, while in case of capacitive loads, the negative slope is mainly determined by the current consumption thru the load and its capacitance. To allow fast settling time changing from higher to lower output voltage values, the device provides two modes of operation: The low−side driver at ECFB does not feature any freewheeling diode or clamping structure to handle inductive loads. Current Sensing Current Sense Output / PWM2 Input (Bidirectional Pin ISOUT/PWM2) The current sense output allows a more precise analysis of the actual state of the load rather than the basic detection of an under− or overload condition. The sense output provides an image of the actual load current at the selected high side driver transistor. The current monitor function is available for all high current half−bridge outputs (OUT1, OUT4, OUT5 and OUT6), the high current high−side output (OUT11) as well as for the all bulb and LED outputs (OUT7−10). The current sense ratio is fixed for the low resistance outputs OUT1/6/11 and OUT7/8 (bulb mode) to 1/10000, for door lock outputs OUT4/5 to 1/9200 and for the high ohmic outputs OUT9/10 and OUT7/8 (LED mode) to 1/2000. To prevent from false readouts, the signal at pin ISOUT is blanked after switching on the driver until correct settlement of the circuitry (> 64 ms). Bits CONTROL_3.IS[3:0] are used to select the output to be multiplexed to the current sense output. The NCV7707 provides a sample−and−hold functionality for the current sense output to enable precise and simple load current diagnostics even during PWM operation of the respective output. While in active high−side output state, the current provided at ISOUT reflects a (low−pass−filtered) image of the actual output current, the IS−output current is sampled and held constant as soon as the HS output transistor is commanded off via PWM (low−side or high−impedant on half−bridge outputs, high−impedant on HS−outputs). In case no previous current information is available in the Sample−and−hold stage (current sense channel changed while actual channel is commanded off) the sample stage is reset so that it reflects zero output current. 1. Fast discharge: When the target output voltage is set to 0 V and bit CONTROL_1.LS_ECFB is set, the voltage at pin ECFB is pulled to ground by a 1.6 W low−side switch. 2. PWM discharge: In case of PWM discharge being activated (CONFIG.ECM_LSPWM = 1 and CONTROL_1.LS_ECFB = 1) (Figure 6): a. The circuit regulation starts in normal regulation. The DAC value is turned to new lower value. b. If the loop is detected out of regulation for a time longer than t_rec (~3 ms), the ECON voltage is detected low (internal signal ECON_LOW = 1), the regulator is switched off (DAC voltage at 0) and the fast discharge transistor is activated for ~300 ms (t_disc). During this fast discharge, the ECON output is pulled low to prevent from shoot−thru currents. c. At the end of the discharge pulse t_disc the fast discharge is switched off and the regulation loop is activated again (with DAC to the correct wanted value), so the loop goes back to step b.) and the ECON_LOW comparator is observed again. Before starting a discharge pulse, the ECLO and ECHI comparator data is latched. Electro Chromic Mirror Controller for Electro−chromic Glass The feedback loop out of regulation is monitored by comparing V(ECON) versus V(ECFB) and versus 400 mV. If the regulation is activated and ECON is below ECFB, or below 400 mV, then the loop is detected as out of regulation and internal signal ECON_LOW is made 1. By activating the PWM discharge feature, the overcurrent recovery function is automatically disabled, regardless of the setting in CONTROL_2.OCR_ECFB. The voltage of the electro−chromic element connected at pin ECFB can be controlled to a target value which is set by Control Register 1 (bits CONTROL_1.DAC[5:0]). Setting bit CONTROL_1.ECEN enables this function. At the same time OUT10 is enabled, regardless of its own control bit CONTROL_1.HS10 and the respective PWM setting. An on−chip differential amplifier is used to control an external logic−level N−MOS pass device that delivers the power to http://onsemi.com 20 NCV7707 new ECM target voltage requested CSB V(ECON) Vtarget + offset Sampling of ECON−ECFB voltage V(ECFB) V(ECON) Vtarget, V(ECFB), V(ECON) Vtarget − offset Vtarget (CONTROL_1.DAC) V(ECFB) tdisc LS_ECFB switch status disabled (off) enabled ECON status enabled (on) trec trec trec disabled (5 kW to GND) ECON_LOW (internal signal) enabled V(ECON) < V(ECFB), out of regulation Figure 6. PWM Discharge Mode for ECFB regulation loop). If PWM discharge is enabled (CONFIG.ECM_LSPWM = 1), STATUS_2.ECHI is latched at the end of the discharge cycle, therefore if set it indicates that the device is in active discharge operation. Since OUT10 is the output of a high−side driver, it contains the same diagnostic functions as the other high−side drivers (e.g. switch−off during overcurrent condition). In electro−chrome mode, OUT10 can’t be controlled by PWM. For noise immunity reasons, it is recommended to place the loop capacitors at ECON as well as another capacitor between ECFB and GND as close as possible to the respective pins. The controller provides a chip−internal diode from ECFB (Anode) to pin ECON (Cathode) to protect the external MOSFET. A capacitor of at least 4.7 nF has to be added to pin ECON for stability of the control loop. It is recommended to place 220 nF capacitor between ECFB and ground to increase the stability. The status of the voltage control loop is reported via SPI. Bit STATUS_2.ECHI = 1 indicates that the voltage on ECFB is higher than the programmed target value, STATUS_2.ECLO = 1 indicates that the ECFB voltage is below the programmed value. Both status bits are valid if they are stable for at least 150 ms (settling time of the VS NCV7707 OUT10 DAC−EC Control 6 ECON DAC SI SCLK SPI CSB SO 4.7 nF ECM Auto discharge ECFB LS Discharge Transistor Figure 7. Electro Chromic Mirror Application Diagram http://onsemi.com 21 220 nF Electro−Chromic Mirror NCV7707 Openload (Underload) Detection Diagnostic Functions All diagnostic functions (overcurrent, underload, power supply monitoring, thermal warning and thermal shutdown) are internally filtered. The failure condition has to be valid for the minimum specified filtering time (td_old, td_uld, td_uvov and td_tx) before the corresponding status bit in the status register is set. The filter function is used to improve the noise immunity of the device. The undercurrent and temperature warning functions are intended for information purpose and do not affect the state of the output drivers. An overcurrent condition disables the corresponding output driver while a thermal shutdown event disables all outputs into high impedance state. Depending on the setting of the overcurrent recovery bits in the input register, the driver can either perform an auto−retry or remain latched off until the microcontroller clears the corresponding status bits. Overtemperature shutdown is latch−off only, without auto−retry functionality. The openload detection monitors the load current in the output stage while the transistor is active. If the load current is below the openload detection threshold for at least td_uld, the corresponding bit (ULDx) is set in the status registers STATUS_1/2. The status of the output remains unchanged. Once set, ULDx remains set regardless of the actual load condition. It has to be reset by a read&write access to the corresponding status register. Overload Detection An overcurrent condition is indicated by the flag (UOV_OC) in the Global Status Byte after a filter time of at least td_old. The channel dependent overcurrent flags are set in the status registers (STATUS_0/2.OCx) and the corresponding driver is switched into high impedance state to protect the device. Each low−side and high−side driver stage provides its own overcurrent flag. Resetting this overcurrent flag automatically re−enables the respective output (provided it is still enabled thru the Control register). If the over current recovery function is enabled, the internal chip logic automatically resets the overcurrent flag after a fixed delay time, generating a PWM modulated current with a programmable duty cycle. Otherwise the status bits have to be cleared by the microcontroller by a read&clear access to the corresponding status register. Overvoltage / Undervoltage Shutdown If the supply voltage Vs rises above the switch off voltage Vov_vs(off) or falls below Vuv_vs(off), all output transistors are switched to high−impedance state and the global status bit UOV_OC (multi information) is set. The status flag STATUS_2.VSOV, resp. STATUS_2.VSUV is set, too, to log the over−/under−voltage event. The bit CONTROL_3.OVUVR can be used to determine the recovery behavior once the Vs supply voltage gets back into the specified nominal operating range. OVUVR = 0 enables auto−recovery, with OVUVR = 1 the output stages remain in high impedance condition until the status flags have been cleared. Once set, STATUS2.VSOV / VSUV can only be reset by a read&clear access to the status register STATUS_2. Cross−current Protection Thermal Warning and Overtemperature Shutdown Wake−up and Mode Control All six half−bridges are protected against cross−currents by internal circuitry. If one driver is turned off (LS or HS), the activation of the other driver of the same output will be automatically delayed by the cross current protection mechanism until the active driver is safely turned off. Mode Control The device provides a dual−stage overtemperature protection. If the junction temperature rises above Tjtw_on, a temperature warning flag (TW) is set in the Global Status Byte and can be read via SPI. The control software can then react onto this overload condition by a controlled disable of individual outputs. If however the junction temperature reaches the second threshold Tjsd_on, the thermal shutdown bit TSD is set in the Global Status Byte and all output stages are switched into high impedance state to protect the device. The minimum shutdown delay for overtemperature is td_tx. The output channels can be re−enabled after the device cooled down and the TSD flag has been reset by the microcontroller by setting CONTROL_0.MODE = 0. Two different modes are available: • Active mode • Standby mode After power−up of VCC the device starts in Standby mode. Pulling the chip−select signal CSB to low level causes the device to change into Active mode (analog part active). After at least 10 ms delay, the first SPI communication is valid and bit CONTROL_0.MODE can be used to set the desired mode of operation. If bit MODE remains reset (0), the device returns to the Standby mode after an internal delay of max. 8 ms, clearing all register content and setting all output stages into high impedance state. http://onsemi.com 22 NCV7707 SPI Control VCC Power−up General Description Delay (tact) Output stages Hi−Z Register content cleared SPI not ready The 4−wire SPI interface establishes a full duplex synchronous serial communication link between the NCV7707 and the application’s microcontroller. The NCV7707 always operates in slave mode whereas the controller provides the master function. A SPI access is performed by applying an active−low slave select signal at CSB. SI is the data input, SO the data output. The SPI master provides the clock to the NCV7707 via the SCLK input. The digital input data is sampled at the rising edge at SCLK. The data output SO is in high impedance state (tri−state) when CSB is high. To readout the global error flag without sending a complete SPI frame, SO indicates the corresponding value as soon as CSB is set to active. With the first rising edge at SCLK after the high−to−low transition of CSB, the content of the selected register is transferred into the output shift register. The NCV7707 provides four control registers (CONTROL_0/1/2/3), two PWM configuration registers (PWM_7/8 and PWM_9/10), three status registers (STATUS_0/1/2) and one general configuration register (CONFIG). Each of these register contains 16−bit data, together with the 8−bit frame header (access type, register address), the SPI frame length is therefore 24 bits. In addition to the read/write accessible registers, the NCV7707 provides five 8−bit ID registers (ID_HEADER, ID_VERSION, ID_CODE1/2 and ID_SPI−FRAME) with 8−bit data length. The content of these registers can still be read out by a 24−bit access, the data is then transferred in the MSB section of the data frame. MODE = 1 or MODE = 1 CSB = 0 Delay (tsact) CSB = 0 CSB = 1 and MODE = 0 Standby Active Output stages High−Z Register content cleared Output stages controlled thru output registers CSB = 0 Delay timer expired MODE = 0 and CSB = 1 Delay (tacts) Output stages controlled thru output registers Register content valid Figure 8. Mode Transitions Diagram CSB t 0 SCLK 1 2 3 4 5 21 22 23 t SI D23 D22 D21 D20 D19 D18 D2 D1 D0 t CSB = 0 CONTROL_0 MODE = 1 Mode standby active active t CSB = 0 & MODE = 0 Mode standby SPI Frame Format Figure 10 shows the general format of the NCV7707 SPI frame. standby active t < 8 ms Figure 9. Mode Timing Diagram Access Register Address Type Input Data Input Data CSB SCLK SI OP1 OP0 A5 A4 A3 A2 A1 A0 DI7 DI6 DI2 DI1 DI0 SO FLT TF RES TSD TW UOV _OC ULD NRDY DO7 DO6 DO2 DO1 DO0 Device Status Bits Address−dependent Data Figure 10. SPI Frame Format http://onsemi.com 23 X NCV7707 24−bit SPI Interface way. The device features a stuck−at−one detection, thus upon detection of a command = FFFFFFh, the device will be forced into the Standby mode. All output drivers are switched off. Both 24−bit input and output data are MSB first. Each SPI−input frame consists of a command byte followed by two data bytes. The data returned on SO within the same frame always starts with the global status byte. It provides general status information about the device. It is then followed by 2 data bytes (in−frame response) which content depends on the information transmitted in the command byte. For write access cycles, the global status byte is followed by the previous content of the addressed register. Serial Data Out (SO) The SO data output driver is activated by a logical low level at the CSB input and will go from high impedance to a low or high level depending on the global status bit, FLT (Global Error Flag). The first rising edge of the SCLK input after a high to low transition of the CSB pin will transfer the content of the selected register into the data out shift register. Each subsequent falling edge of the SCLK will shift the next bit thru SO out of the device. Chip Select Bar (CSB) CSB is the SPI input pin which controls the data transfer of the device. When CSB is high, no data transfer is possible and the output pin SO is set to high impedance. If CSB goes low, the serial data transfer is allowed and can be started. The communication ends when CSB goes high again. Command Byte / Global Status Byte Each communication frame starts with a command byte (Table 2). It consists of an operation code (OP[1:0], Table 3) which specifies the type of operation (Read, Write, Read & Clear, Readout Device Information) and a six bit address (A[5:0], Table 4). If less than six address bits are required, the remaining bits are unused but are reserved. Both Write and Read mode allow access to the internal registers of the device. A “Read & Clear”−access is used to read a status register and subsequently clear its content. The “Read Device Information” allows to read out device related information such as ID−Header, Product Code, Silicon Version and Category and the SPI−frame ID. While receiving the command byte, the global status byte is transmitted to the microcontroller. It contains global fault information for the device, as shown in Table 6. Serial Clock (SCLK) If CSB is set to low, the communication starts with the rising edge of the SCLK input pin. At each rising edge of SCLK, the data at the input pin Serial IN (SI) is latched. The data is shifted out thru the data output pin SO after the falling edges of SCLK. The clock SCLK must be active only within the frame time, means when CSB is low. The correct transmission is monitored by counting the number of clock pulses during the communication frame. If the number of SCLK pulses does not correspond to the frame width indicated in the SPI−frame−ID (Chip ID Register, address 3Eh) the frame will be ignored and the communication failure bit “TF” in the global status byte will be set. Due to this safety functionality, daisy chaining the SPI is not possible. Instead, a parallel operation of the SPI bus by controlling the CSB signal of the connected ICs is recommended. ID Register Chip ID Information is stored in five special 8−bit ID registers (Table 5). The content can be read out at the beginning of the communication. Serial Data In (SI) During the rising edges of SCLK (CSB is low), the data is transferred into the device thru the input pin SI in a serial Table 2. COMMAND BYTE / GLOBAL STATUS BYTE STRUCTURE Command Byte (IN) / Global Status Byte (OUT) 23 22 NCV7707 IN OP1 OP0 A5 A4 A3 A2 A1 A0 NCV7707 OUT FLT TF RESB TSD TW UOV_OC ULD NRDY 1 0 0 0 0 0 0 1 Bit Reset Value 21 20 19 18 Table 3. COMMAND BYTE, ACCESS MODE OP1 OP0 Description 0 0 Write Access (W) 0 1 Read Access (R) 1 0 Read and Clear Access (RC) 1 1 Read Device ID (RDID) http://onsemi.com 24 17 16 NCV7707 Table 4. COMMAND BYTE, REGISTER ADDRESS A[5:0] Access Description 00h R/W Control Register CONTROL_0 Content Device mode control, Bridge outputs control 01h R/W Control Register CONTROL_1 High−side outputs control, ECM control 02h R/W Control Register CONTROL_2 Bridge outputs recovery control, PWM enable, ECM setup 03h R/W Control Register CONTROL_3 High−side outputs recovery control, PWM enable, Current Sense selection 08h R/W PWM Control Register PWM_7/8 PWM control register for OUT7,8 09h R/W PWM Control Register PWM_9/10 PWM control register for OUT9,10 10h R/RC Status Register STATUS_0 Bridge outputs Overcurrent diagnosis 11h R/RC Status Register STATUS_1 Bridge outputs Underload diagnosis 12h R/RC Status Register STATUS_2 HS outputs Overcurrent and Underload diagnosis, Vs Over− and Undervoltage, EC−mirror 3Fh R/W Configuration Register CONFIG Mask bits for global fault bits Table 5. CHIP ID INFORMATION A[5:0] Access Description 00h RDID ID header 4300h Content 01h RDID Version 0400h 02h RDID Product Code 1 7700h 03h RDID Product Code 2 0700h 3Eh RDID SPI−Frame ID 0200h http://onsemi.com 25 NCV7707 Table 6. Global Status Byte Content FLT Global Fault Bit 0 No fault Condition 1 Fault Condition TF Failures of the Global Status Byte, bits [6:0] are always linked to the Global Fault Bit FLT. This bit is generated by an OR combination of all failure bits of the device (RESB inverted). It is reflected via the SO pin while CSB is held low and NO clock signal is present (before first positive edge of SCLK). The flag will remain valid as long as CSB is held low. This operation does not cause the Transmission error Flag in the Global Status Byte to be set. Signals TW and ULD can be masked. SPI Transmission Error 0 No Error 1 Error RESB If the number of clock pulses within the previous frame was unequal 0 (FLT polling) or 24. The frame was ignored and this flag was set. Reset Bar (Active low) 0 Reset 1 Normal Operation TSD Bit is set to ”0” after a Power−on−Reset or a stuck−at−1 fault at SI (SPI−input data = FFFFFFh) has been detected. All outputs are disabled. Overtemperature Shutdown 0 No Thermal Shutdown 1 Thermal Shutdown TW Thermal Shutdown Status indication. In case of a Thermal Shutdown, all output drivers including the charge pump output are deactivated (high impedance). The TSD bit has to be cleared thru a SW reset to reactivate the output drivers and the chargepump output. Thermal Warning 0 No Thermal Warning 1 Thermal Warning UOV_OC This bit indicates a pre−warning level of the junction temperature. It is maskable by the Configuration Register (CONFIG.NO_TW). VS Monitoring, Overcurrent Status 0 No Fault 1 Fault This bit represents a logical OR combination of under−/overvoltage signals (VS) and overcurrent signals. ULD Underload 0 No Underload 1 Underload This bit represents a logical OR combination of all underload signals. It is maskable by the Configuration Register (CONFIG.NO_ULDx). It is also possible to deactivate this flag for HS1 or LS1, only (CONFIG.NO_ULD_HS1/LS1). NRDY Not Ready 0 Device Ready 1 Device Not Ready After transition from Standby to Active mode, an internal timer is started to allow the internal chargepump to settle before any outputs can be activated. This bit is cleared automatically after the startup is completed. http://onsemi.com 26 NCV7707 SPI REGISTERS CONTENT CONTROL_0 Register Address: 00h Bit D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 Access type RW RW RW RW RW RW RW RW RW RW RW RW − − − RW Bit name HS1 LS1 HS2 LS2 HS3 LS3 HS4 LS4 HS5 LS5 HS6 LS6 0 0 0 MODE 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Reset value HS/LS Outputs OUT1−6 Driver Control HSx LSx 0 0 0 1 LSx enabled 1 0 HSx enabled 1 1 default MODE Mode Control 0 1 default Description Remark OUTx High impedance OUTx High impedance If a driver is enabled by the control register AND the corresponding PWM enable bit is set in CONTROL_2 register, the output is only activated if PWM1 (PWM2) input signal is high. Since OUT1..OUT6 are half−bridge outputs, activating both HS and LS at the same time is prevented by internal logic. Description Remark If MODE is set, the device is switched to Active mode. Resetting MODE forces the device to transition into Standby mode, all internal memory is cleared and all output stages are switched into their default state (off). Standby Active http://onsemi.com 27 NCV7707 CONTROL_1 Register Address: 01h Bit D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 Access type RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW − Bit name Reset value HS Outputs OUT7,8 Control HS7.1 HS7.0 HS8.1 HS8.0 HS9 0 0 0 0 0 Description 0 1 Output enabled, low current mode (LED mode) 1 0 Output enabled, high current mode (bulb mode) 1 1 OUTx High impedance default 0 default 0 OUTx High impedance OUTx enabled Description default Pull−down transistor disabled (high impedance) Pull−down transistor enabled DAC[5:0] Description n Reference voltage for ECON/ECFB differential amplifier ECEN Description 0 0 1 default default 0 0 0 0 0 0 0 0 0 Remark OUTx High impedance Description 1 Electrochrom. Mirror Enable 0 HSx.0 LS ECFB Electrochrom. Mirror Reference Voltage 0 0 1 ECFB Pull−down Output Control 0 LS DAC5 DAC4 DAC3 DAC2 DAC1 DAC0 ECEN ECFB HSx.1 HSx HS Outputs OUT9−11 Control 0 HS10 HS11 Electrochromic mirror controller disabled Electrochromic mirror controller enabled http://onsemi.com 28 If a driver is enabled by the control register AND the corresponding PWM enable bit is set in CONTROL_3 register, the output is only activated if the corresponding PWM input signal (PWM pin or internal PWM signal) is high. Remark If a driver is enabled by the control register AND the corresponding PWM enable bit is set in CONTROL_3 register, the output is only activated if the corresponding PWM input signal (PWM pin or internal PWM signal) is high. Remark The ECFB−pull−down transistor can only be activated if the DAC output voltage is set to 0 V (DAC[5:0]=0). If the PWM enable bit CONTROL_2.ECFB_PWM1 is set, the output will only be activated when the PWM1 signal input is high. Remark If bit CONTROL_2.FSR=0, the output voltage is clamped to 1.2 V. Remark By enabling the electrochromic mirror controller (ECEN=1), the output driver for the external pass transistor (ECON) is enabled. In addition, OUT10 is activated, regardless of the setting of CONTROL_1.HS10. NCV7707 CONTROL_2 Register Address: 02h Bit D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 Access type RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW Bit name OCR1 OCR2 OCR3 OCR4 OCR5 OCR6 Reset value 0 0 0 0 OCRx Overcurrent Recovery PWM Unit 0 0 0 0 0 0 0 Description Remark Overcurrent Recovery disabled 0 0 0 1 Overcurrent Recovery enabled PWMI Description Remark 0 0 default default 0 Description default 1 1 PWMx not selected PWMx selected FSR 0 Internal PWM unit disabled Internal PWM unit enabled OUTx PWM DAC Full−scale Range Control 0 During an overcurrent event the overcurrent status bit STATUS_0/2.OCx is set and the dedicated output is switched off. (The global multi bit UOV_OC is set, also). When the overcurrent recovery bit is enabled, the output will be reactivated automatically after a programmable delay time (CONTROL_3.OCRF). 1 PWM1/2 Selection 0 OCR OUT1 OUT2 OUT3 OUT4 OUT5 OUT6 ECFB PWMI FSR ECFB PWM1 PWM1 PWM1 PWM1 PWM2 PWM1 PWM1 Description default Vout = 1.5 / 2^6 · DAC[5:0] clamped at 1.2 V Vout = 1.5 / 2^6 · DAC[5:0] http://onsemi.com 29 The device has three different PWM sources: external pins PWM1, PWM2 and the internal PWM unit which can be used to control the lamp drivers in an additional way. PWMI selects the internal PWM unit. Remark For the half−bridge outputs it is possible to select the PWM input pins PWM1 or PWM2. In this case the dedicated output (selected in CONTROL_0 register) is on if the PWM input signal is high. OUT5 is controlled by PWM2, all other half−bridges are controlled by PWM1. Remark The default voltage at ECFB in electrochrome mode is clamped at 1.2 V, when FSR=1 the maximum value is 1.5 V. NCV7707 CONTROL_3 Register Address: 03h Bit D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 Access Type RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW OUT7 OUT8 OUT9 OUT10 OUT11 OCRF OVUVR IS3 PWM1 PWM2 PWM1 PWM2 PWM1 IS2 IS1 IS0 0 0 0 Bit name OCR7 OCR8 OCR9 OCR10 OCR11 Reset value 0 0 0 0 0 OCRx Overcurrent Recovery PWM1/2 Selection 0 0 0 0 0 Description Remark Overcurrent Recovery disabled 0 1 Overcurrent Recovery enabled OUTx PWM Description Remark 0 0 default default 0 Description default OVUVR 1 Slow Overcurrent recovery mode Fast Overcurrent recovery mode 1 0 PWMx not selected PWMx selected OCRF Over− / Under−voltage Recovery 0 During an overcurrent event the overcurrent status bit STATUS_0/2.OCx is set and the dedicated output is switched off. (The global multi bit UOV_OC is set, also). When the overcurrent recovery bit is enabled, the output will be reactivated automatically after a programmable delay time (CONTROL_3.OCRF). 1 Overcurrent Recovery Frequency Selection 0 Description default Over− and undervoltage recovery function enabled No over− and undervoltage recovery http://onsemi.com 30 For the HS outputs it is possible to select the PWM input pins PWM1, PWM2 or internal PWMI unit (OUT7−10 only). In this case the dedicated output (selected in CONTROL_1 register) is on if the PWM input signal is high. OUT8 and OUT10 are controlled by PWM2, OUT7,9 and OUT11 are controlled by PWM1. Remark If the overcurrent recovery bit is set, the output will be switched on automatically after a delay time. The recovery behavior of OUT7,8 in bulb mode is not affected by this bit. Remark If the OV/UV recovery is disabled by setting OVUVR=1, the status register STATUS_2 bits VSOV or VSUV have to be cleared after an OV/UV event. NCV7707 Current Sensing Selection IS3 IS2 IS1 IS0 Description 0 0 0 0 OUT1 0 0 0 1 current sensing deactivated 0 0 1 0 current sensing deactivated 0 0 1 1 OUT4 0 1 0 0 OUT5 0 1 0 1 OUT6 0 1 1 0 OUT7 0 1 1 1 OUT8 1 0 0 0 OUT9 1 0 0 1 OUT10 1 0 1 0 OUT11 1 0 1 1 current sensing deactivated 1 1 0 0 current sensing deactivated 1 1 0 1 current sensing deactivated 1 1 1 0 current sensing deactivated 1 1 1 1 current sensing deactivated Remark The current in all high−side power stages (except of OUT2/3) can be monitored at the bidirectional multifunctional pin ISOUT/PWM2. This pin is a multifunctional pin and can be activated as output by setting the current selection bits IS[3:0]. The selected high−side output will be multiplexed to the output ISOUT. http://onsemi.com 31 NCV7707 PWM_7/8 Register Address: 08h Bit D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 Access Type RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW Bit Name Reset Value PWM Duty Cycle selector for OUT7 PWM Frequency selector for OUT7 FSEL7 PW7.6 PW7.5 PW7.4 PW7.3 PW7.2 PW7.1 PW7.0 FSEL8 PW8.6 PW8.5 PW8.4 PW8.3 PW8.2 PW8.1 PW8.0 0 0 0 0 PW7[6:0] PWM Frequency selector for OUT8 0 0 0 0 0 0 0 0 0 0 0 Description Remark 1 .. 7Fh Duty Cycle for OUT7 = (PW7[6:0] +1) / 128 It is possible to control OUT7 by the internal PWM unit if bit PWMI is set in the control register CONTROL_2. FSEL7 Description Remark 0 0 default default 1 0 f(PWM) = 170 Hz f(PWM) = 225 Hz PW8[6:0] PWM Duty Cycle selector for OUT8 0 Description default 1 .. 7Fh Duty Cycle for OUT8 = (PW8[6:0] +1) / 128 FSEL8 Description 0 1 default f(PWM) = 170 Hz f(PWM) = 225 Hz http://onsemi.com 32 Bit FSEL7 selects between 170 and 225 Hz PWM frequency for OUT7. Remark It is possible to control OUT8 by the internal PWM unit if bit PWMI is set in the control register CONTROL_2. Remark Bit FSEL8 selects between 170 and 225 Hz PWM frequency for OUT8. NCV7707 PWM_9/10 Register Address: 09h Bit D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 Access Type RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW Bit Name Reset Value PWM Duty Cycle selector for OUT9 PWM Frequency selector for OUT9 FSEL FSEL9 PW9.6 PW9.5 PW9.4 PW9.3 PW9.2 PW9.1 PW9.0 PW10.6 PW10.5 PW10.4 PW10.3 PW10.2 PW10.1 PW10.0 10 0 0 0 0 PW9[6:0] PWM Frequency selector for OUT10 0 0 0 0 0 0 0 0 0 0 0 Description Remark 1 .. 7Fh Duty Cycle for OUT9 = (PW9[6:0] +1) / 128 It is possible to control OUT9 by the internal PWM unit if bit PWMI is set in the control register CONTROL_2. FSEL9 Description Remark 0 0 default default 1 0 Description default 1 .. 7Fh FSEL10 0 1 f(PWM) = 170 Hz f(PWM) = 225 Hz PW10[6:0] PWM Duty Cycle selector for OUT10 0 Duty Cycle for OUT10 = (PW10[6:0] +1) / 128 Description default f(PWM) = 170 Hz f(PWM) = 225 Hz http://onsemi.com 33 Bit FSEL9 selects between 170 and 225 Hz PWM frequency for OUT9. Remark It is possible to control OUT10 by the internal PWM unit if bit PWMI is set in the control register CONTROL_2. Remark Bit FSEL10 selects between 170 and 225 Hz PWM frequency for OUT10. NCV7707 STATUS_0 Register Address: 10h Bit D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 Access Type R/RC R/RC R/RC R/RC R/RC R/RC R/RC R/RC R/RC R/RC R/RC R/RC − − − − Bit Name OC HS1 OC LS1 OC HS2 OC LS2 OC HS3 OC LS3 OC HS4 OC LS4 OC HS5 OC LS5 OC HS6 OC LS6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Reset Value OCx OUT1−6 Overcurrent Detection Description 0 No overcurrent detected 1 Overcurrent detected Remark During an overcurrent event in one of the HS or LS, the belonging overcurrent status bit STATUS_0.OCx is set and the dedicated output is switched off. (The global multi bit UOV_OC is set, also). When the overcurrent recovery bit is enabled, the output will be reactivated automatically after a programmable delay time (CONTROL_3.OCRF). If the overcurrent recovery bit is not set the microcontroller has to clear the OC failure bit and to reactivate the output stage again. STATUS_1 Register Address: 11h Bit D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 Access Type R/RC R/RC R/RC R/RC R/RC R/RC R/RC R/RC R/RC R/RC R/RC R/RC − − − − Bit Name ULD HS1 ULD LS1 ULD HS2 ULD LS2 ULD HS3 ULD LS3 ULD HS4 ULD LS4 ULD HS5 ULD LS5 ULD HS6 ULD LS6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Reset Value ULDx Description 0 No underload detected 1 Underload detected OUT1−6 Underload Detection Remark For each output stage an underload status bit ULD is available. The underload detection is done in ”on−mode”. If the load current is below the undercurrent detection threshold for at least td_uld , the corresponding underload bit ULDx is set. If an ULD event occurs the global status bit ULD will be set. For ULD_HS1 and ULD_LS1 it is possible to deactivate the global ULD failure bit by setting the configuration bits CONFIG.NO_ULD_HS1/LS1. With setting CONFIG.NO_ULD_OUTn the global ULD failure bit is deactivated in general. http://onsemi.com 34 NCV7707 STATUS_2 Register Address: 12h Bit D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 Access type R/RC R/RC R/RC R/RC R/RC R/RC R/RC R/RC R/RC R/RC R/RC R/RC R/RC R/RC R/RC R/RC Bit name OC HS7 ULD HS7 OC HS8 ULD HS8 OC HS9 ULD HS9 0 0 0 0 0 0 Reset value OCx OUT7−11 Overcurrent Detection 0 No overcurrent detected 1 Overcurrent detected Description 0 No underload detected 1 Underload detected VSUV No undervoltage detected 1 Undervoltage detected VSOV Description Vs Overvoltage 0 0 No overvoltage detected 1 Overvoltage detected ECLO ECHI Description 0 0 ECM output regulation in range 0 1 ECM output V > Vregulation 1 0 ECM output V < Vregulation 1 1 not used 0 0 0 0 0 0 0 0 Remark During an overcurrent event in one of the HS the belonging overcurrent status bit STATUS_2.OCx is set and the dedicated output is switched off. (The global multi bit UOV_OC is set, also). When the overcurrent recovery bit is enabled, the output will be reactivated automatically after a programmable delay time (CONTROL_3.OCRF). If the overcurrent recovery bit is not set the microcontroller has to clear the OC failure bit and to reactivate the output stage again. Remark For each output stage an underload status bit ULD is available. The underload detection is done in ”on−mode”. If the load current is below the undercurrent detection threshold for at least td_uld, the corresponding underload bit ULDx is set. If an ULD event occurs the global status bit ULD will be set. It is possible to deactivate the global ULD failure bit by setting the configuration bits CONFIG.NO_ULD_OUTn. Description 0 Vs Undervoltage 0 Description ULDx OUT7−11 Underload Detection EC Mirror Control Status OC ULD OC ULD OC ULD VSUV VSOV ECLO ECHI HS10 HS10 HS11 HS11 ECFB ECFB Remark In case of an Vs undervoltage event, the output stages will be deactivated immediately and the corresponding failure flag will be set. By default the output stages will be reactivated automatically after Vs is recovered unless the control bit CONTROL_3.OVUVR is set. If this is the case (OVUVR=1) the bit VSUV has to be cleared after an UV event. Remark In case of an Vs overvoltage event, the output stages will be deactivated immediately and the corresponding failure flag will be set. By default the output stages will be reactivated automatically after Vs is recovered unless the control bit CONTROL_3.OVUVR is set. If this is the case (OVUVR=1) the bit VSOV has to be cleared after an OV event. Remark Two comparators monitor the voltage at pin ECFB (feedback) in electrocrome mode. If this voltage is below / above the programmed target these bits signal the difference after at least 32 ms. The bits are not latched and may toggle after at least 32 ms, if the ECFB voltage has not yet reached the target. They are not assigned to the Global Error Flag. http://onsemi.com 35 NCV7707 CONFIG Register Address: 3Fh Bit D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 Access Type − − − − − − − − RW − RW RW RW − RW − Bit Name 0 0 0 0 0 0 0 0 ECM LSPWM 0 NO_ULD NO_ULD NO_ HS1 LS1 TW 0 NO_ULD OUTn 0 Reset Value 0 0 0 0 0 0 0 0 0 0 0 0 0 Global Underload Flag HS1/LS1 NO_ULD HS1 NO_ULD LS1 0 0 0 1 No global underload flag at LS1 1 0 No global underload flag at HS1 1 1 No global underload flag at HS1/LS1 Description default NO_TW No Thermal Warning Flag 0 NO_ULD_OUTn Global Undeload Flag OUTn 0 Description default ECM_LSPWM 0 1 Global underload flag active No global underload flag active 1 ECM PWM Discharge Thermal warning flag active No thermal warning flag active 1 Description default 0 0 Remark Global underload flag at HS1/LS1 active Description default 0 LS PWM feature disabled LS PWM feature enabled http://onsemi.com 36 For ULD_HS1 and ULD_LS1 it is possible to deactivate the global ULD failure bit by setting the configuration bits CONFIG.NO_ULD_HS1/LS1.With setting CONFIG.NO_ULD_OUTn the global ULD failure bit is deactivated in general. Remark The global thermal warning bit TW can be deactivated. Remark By setting CONFIG.NO_ULD_OUTn the global ULD failure bit is deactivated in general. Remark If this bit is set, automatic PWM discharge on the ECM output is enabled. In case of PWM discharge the Overcurrent recovery feature is disabled, regardless of the setting of CONTROL_2.OC_ECFB. NCV7707 PACKAGE DIMENSIONS SSOP36 EP CASE 940AB ISSUE O 0.20 C A-B D DETAIL B A 36 X 19 X = A or B E1 ÉÉÉ ÉÉÉ PIN 1 REFERENCE 1 e/2 E DETAIL B 36X 0.25 C 18 e 36X B b 0.25 M T A B S S NOTE 6 TOP VIEW A H NOTES: 1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M, 1994. 2. CONTROLLING DIMENSION: MILLIMETERS. 3. DIMENSION b DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.13 TOTAL IN EXCESS OF THE b DIMENSION AT MMC. 4. DIMENSION b SHALL BE MEASURED BETWEEN 0.10 AND 0.25 FROM THE TIP. 5. DIMENSIONS D AND E1 DO NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. DIMENSIONS D AND E1 SHALL BE DETERMINED AT DATUM H. 6. THIS CHAMFER FEATURE IS OPTIONAL. IF IT IS NOT PRESENT, A PIN ONE IDENTIFIER MUST BE LOACATED WITHIN THE INDICATED AREA. D 4X h A2 DETAIL A c h 0.10 C 36X SIDE VIEW A1 C SEATING PLANE END VIEW D2 M1 M GAUGE PLANE E2 L2 C SEATING PLANE 36X L DETAIL A BOTTOM VIEW SOLDERING FOOTPRINT* 5.90 36X 1.06 4.10 10.76 1 0.50 PITCH 36X 0.36 DIMENSIONS: MILLIMETERS *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. http://onsemi.com 37 DIM A A1 A2 b c D D2 E E1 E2 e h L L2 M M1 MILLIMETERS MIN MAX --2.65 --0.10 2.35 2.60 0.18 0.36 0.23 0.32 10.30 BSC 5.70 5.90 10.30 BSC 7.50 BSC 3.90 4.10 0.50 BSC 0.25 0.75 0.50 0.90 0.25 BSC 0_ 8_ 5_ 15 _ NCV7707 ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. 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