Freescale Semiconductor, Inc. MOTOROLA Document order number: MC33880/D Rev 3.0, 01/2004 SEMICONDUCTOR TECHNICAL DATA Advance Information 33880 Freescale Semiconductor, Inc... Configurable Octal Serial Switch with Serial Peripheral Interface I/O The 33880 device is an eight-output hardware configurable high-side/lowside switch with 8-bit serial input control. Two of the outputs may be controlled directly via microprocessor for PWM applications. The 33880 incorporates SMARTMOS technology, with CMOS logic, bipolar/MOS analog circuitry, and DMOS power MOSFETs. The 33880 controls various inductive or incandescent loads by directly interfacing with a microcontroller. The circuit’s innovative monitoring and protection features include very low standby currents, cascade fault reporting, output-specific diagnostics, and independent shutdown of output. CONFIGURABLE OCTAL SERIAL SWITCH WITH SERIAL PERIPHERAL INTERFACE Features • Designed to Operate 5.5 V < VPWR < 24.5 V • 8-Bit SPI for Control and Fault Reporting, 3.3 V/5.0 V Compatible • Outputs Are Current Limited (0.8 A to 2.0 A) to Drive Incandescent Lamps • Output Voltage Clamp Is +45 V (Typical) (Low-Side Drive) and -20 V (Typical) (High-Side Drive) During Inductive Switching • Internal Reverse Battery Protection on VPWR DW SUFFIX CASE 751F-05 28-PIN SOIC • Loss of Ground or Supply Will Not Energize Loads or Damage IC • Maximum 5.0 µA IPWR Standby Current at 13 V VPWR up to 95°C DWB SUFFIX CASE 1324-02 32-PIN SOIC ORDERING INFORMATION • RDS(ON) of 0.55 Ω at 25°C Typical Temperature Range (TA) Device • Short Circuit Detect and Current Limit with Automatic Retry • Independent Overtemperature Protection • 32-Pin SOIC Has Pins 8, 9, 24, and 25 Grounded for Thermal Performance MC33880DW/R2 MC33880DWB/R2 -40°C to 125°C Simplified Application Diagram 33880 Simplified Application Diagram VPWR +5.0 V VBAT 33880 A0 MCU VPWR VDD EN MOSI SCLK DI SCLK CS MISO CS DO PWM1 IN5 PWM2 IN6 GND D1 D2 D3 D4 S1 S2 S3 S4 High-Side Drive M D5 D6 D7 D8 S5 S6 S7 S8 This document contains certain information on a new product. Specifications and information herein are subject to change without notice. © Motorola, Inc. 2004 For More Information On This Product, Go to: www.freescale.com H-Bridge Configuration VBAT VBAT Low-Side Drive Package 28 SOIC 32 SOIC Freescale Semiconductor, Inc. VDD __ CS VPWR ~50 µA Internal Bias SCLK Overvoltage Shutdown/POR Sleep State Charge Pump DI GND DO Freescale Semiconductor, Inc... OV, POR, SLEEP EN ~50 µA SPI and Interface Logic Typical of All 8 Output Drivers TLIM SPI Bit 0 IN5 ~50 µA IN6 Enable Gate Drive Control SPI Bit 4 Current Limit IN5 + – ~50 µA + – Open/Short Comparator Open Load Detect Current ~650 µA + S1 S2 S3 S4 S7 S8 _ ~1.5 V Open/Short Threshold TLIM Open Load Detect Current ~650 µA Gate Drive Control D1 D2 D3 D4 D7 D8 Drain Outputs Source Outputs D5 D6 Drain Outputs S5 Source Outputs Current Limit + – + – Open/Short Comparator + _ S6 ~1.5 V Open/Short Threshold Figure 1. 33880 Simplified Internal Block Diagram 33880 2 MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, Go to: www.freescale.com Freescale Semiconductor, Inc. Freescale Semiconductor, Inc... GND VDD S8 S8 D8 S2 D2 S1 D1 D6 S6 IN6 17 DO VPWR S7 S7 D7 S4 D4 S3 D3 D5 S5 IN5 EN 13 16 CS SCLK 14 15 DI 1 28 2 27 3 26 4 25 5 24 6 23 7 22 8 21 9 20 10 19 11 18 12 SOIC 28-PIN FUNCTION DESCRIPTON Pin Pin Name Description 1 GND Digital ground. 2 VDD Logic supply voltage. Logic supply must be switched off for low current mode (VDD below 3.9 V). 3, 4 S8 Output 8 MOSFET source pins. 5 D8 Output 8 MOSFET drain pin. 6 S2 Output 2 MOSFET source pin. 7 D2 Output 2 MOSFET drain pin. 8 S1 Output 1 MOSFET source pin. 9 D1 Output 1 MOSFET drain pin. 10 D6 Output 6 MOSFET drain pin. 11 S6 Output 6 MOSFET source pin. 12 IN6 PWM direct control input pin for output 6. IN6 is “OR” with SPI bit. 13 EN Enable input. Allows control of outputs. Active high. 14 SCLK 15 DI SPI control data input pin from MCU to the 33880. Logic [1] activates output. 16 CS SPI control chip select input pin from MCU to the 33880. Logic [0] allows data to be transferred in. 17 IN5 PWM direct control input pin for output 5. IN5 is “OR” with SPI bit. 18 S5 Output 5 MOSFET source pin. 19 D5 Output 5 MOSFET drain pin. 20 D3 Output 3 MOSFET drain pin. 21 S3 Output 3 MOSFET source pin. 22 D4 Output 4 MOSFET drain pin. 23 S4 Output 4 MOSFET source pin. 24 D7 Output 7 MOSFET drain pin. 25, 26 S7 Output 7 MOSFET source pins. SPI control clock input pin. MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, Go to: www.freescale.com 33880 3 Freescale Semiconductor, Inc. SOIC 28-PIN FUNCTION DESCRIPTON (continued) Pin Name 27 VPWR 28 DO Description Power supply pin to the 33880. VPWR has internal reverse battery protection. SPI control data output pin from the 33880 to the MCU. DO = 0 no fault, DO = 1 specific output has fault. Freescale Semiconductor, Inc... Pin 33880 4 MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, Go to: www.freescale.com Freescale Semiconductor, Inc. Freescale Semiconductor, Inc... GND VDD S8 S8 D8 S2 D2 GND GND S1 D1 D6 S6 IN6 EN SCLK 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 DO VPWR S7 S7 D7 S4 D4 GND GND S3 D3 D5 S5 IN5 CS DI SOIC 32-PIN FUNCTION DESCRIPTON Pin Pin Name Description 1, 8, 9, 24, 25 GND Digital ground. 2 VDD Logic supply voltage. Logic supply must be switched off for low current mode (VDD below 3.9 V). 3, 4 S8 Output 8 MOSFET source pins. 5 D8 Output 8 MOSFETdrain pin. 6 S2 Output 2 MOSFET source pin. 7 D2 Output 2 MOSFET drain pin. 10 S1 Output 1 MOSFET source pin. 11 D1 Output 1 MOSFET drain pin. 12 D6 Output 6 MOSFETdrain pin. 13 S6 Output 6 MOSFET source pin. 14 IN6 PWM direct control input pin for output 6. IN6 is “OR” with SPI bit. 15 EN Enable input. Allows control of outputs. Active high. 16 SCLK 17 DI SPI control data input pin from MCU to the 33880. Logic [1] activates output. 18 CS SPI control chip select input pin from MCU to the 33880. Logic [0] allows data to be transferred in. 19 IN5 PWM direct control input pin for output 5. IN5 is “OR” with SPI bit. 20 S5 Output 5 MOSFET source pin. 21 D5 Output 5 MOSFET drain pin. 22 D3 Output 3 MOSFET drain pin. 23 S3 Output 3 MOSFET source pin. 26 D4 Output 4 MOSFET drain pin. 27 S4 Output 4 MOSFET source pin. 28 D7 Output 7 MOSFET drain pin. 29, 30 S7 Output 7 MOSFET source pins. SPI control clock input pin. MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, Go to: www.freescale.com 33880 5 Freescale Semiconductor, Inc. SOIC 32-PIN FUNCTION DESCRIPTON (continued) Pin Name 31 VPWR 32 DO Description Power supply pin to the 33880. VPWR has internal reverse battery protection. SPI control data output pin from the 33880 to the MCU. DO = 0 no fault, DO = 1 specific output has fault. Freescale Semiconductor, Inc... Pin 33880 6 MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, Go to: www.freescale.com Freescale Semiconductor, Inc. MAXIMUM RATINGS All voltages are with respect to ground unless otherwise noted. Rating Symbol Value Unit VDD -0.3 to 7.0 VDC – -0.3 to 7.0 VDC VPWR -16 to 50 VDC VDD Supply Voltage (Note 1) CS, DI, DO, SCLK, IN5, IN6, and EN (Note 1) VPWR Supply Voltage (Note 1) Drain 1–8 (Note 2) – Freescale Semiconductor, Inc... 5.0 mA ≤ IOUT ≤ 0.3 A VDC -18 to 40 Source 1–8 (Note 3) – 5.0 mA ≤ IOUT ≤ 0.3 A VDC -28 to 40 Output Voltage Clamp Low-Side Drive (Note 4) VOC 40 to 55 VDC Output Voltage Clamp High-Side Drive (Note 4) VOC -15 to -25 VDC ECLAMP 50 mJ Human Body Model (Note 6) VESD1 ±2000 Machine Model (Note 7) VESD2 ±200 TSTG -55 to 150 °C Operating Case Temperature TC -40 to 125 °C Operating Junction Temperature TJ -40 to 150 °C Maximum Junction Temperature – -40 to 150 °C Output Clamp Energy (Note 5) ESD Voltage V Storage Temperature Power Dissipation (TA = 25°C) (Note 8) W PD 28 SOIC, Case 751F-05 1.3 32 SOIC, Case 1324-02 1.7 Thermal Resistance, Junction-to-Ambient, 28 SOIC, Case 751F-05 RθJA 94 °C/W Thermal Resistance, Junction-to-Ambient, 32 SOIC, Case 1324-02 RθJA 70 °C/W Thermal Resistance, Junction-to-Thermal Ground Leads, 32 SOIC, Case 1324-02 RθJL 18 Notes 1. 2. 3. 4. 5. 6. Exceeding these limits may cause malfunction or permanent damage to the device. Configured as low-side driver with 300 mA load as current limit. Configured as high-side driver with 300 mA load as current limit. With outputs OFF and 10 mA of test current for low-side driver, 30 mA test current for high-side driver. Maximum output clamp energy capability at 150°C junction temperature using single non-repetitive pulse method. ESD1 testing is performed in accordance with the Human Body Model (CZAP = 100 pF, RZAP = 1500 Ω). 7. ESD2 testing is performed in accordance with the Machine Model (CZAP = 200 pF, RZAP = 0 Ω). 8. Maximum power dissipation with no heatsink used. MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, Go to: www.freescale.com 33880 7 Freescale Semiconductor, Inc. STATIC ELECTRICAL CHARACTERISTICS Characteristics noted under conditions of 4.75 V ≤ VDD ≤ 5.25 V, 9.0 V ≤ VPWR ≤ 16 V, -40°C ≤ TC ≤ 125°C unless otherwise noted. Typical values, where applicable, reflect the parameter’s approximate average value with VPWR = 13 V, TA = 25°C. Characteristic Symbol Min Typ Max Unit 5.5 – 24.5 – 8.0 14 Temperature = -40°C to 95°C – 2.0 5.0 Temperature = 95°C to 125°C – 5.0 20 VOV 25 27 30 V VOV(HYS) 0.15 0.8 2.5 V Logic Supply Voltage VDD 4.75 – 5.25 V Logic Supply Current IDD 0.5 2.6 4.0 mA VDD(UNVOL) 3.9 4.3 4.7 V VDD(UNVOL-HYS) 100 150 300 mV IOUT = 0.25 A, TJ = 125°C – 0.75 1.1 IOUT = 0.25 A, TJ = 25°C – 0.55 0.85 IOUT = 0.25 A, TJ = -40°C – 0.45 0.80 POWER INPUT Supply Voltage Range VPWR(FO) Freescale Semiconductor, Inc... Fully Operational Supply Current IPWR(ON) Sleep State Supply Current (VDD and EN = 0 V, VPWR = 16 V) IPWR(SS) Overvoltage Shutdown Overvoltage Shutdown Hysteresis Logic Supply Undervoltage Lockout Threshold Logic Supply Undervoltage Hysteresis V mA µA POWER OUTPUT Drain-to-Source ON Resistance (VPWR = 16 V) Output Self-Limiting Current High-Side and Low-Side Configurations IOUT(LIM) VPWR = 16 V Output Fault Detect Threshold (Note 9), (Note 10) A 0.8 1.4 2.0 1.0 – 3.0 0.30 0.55 1.0 40 45 55 -15 -20 -25 – 1.0 7.0 TLIM 155 – 185 °C TLIM(HYST) 5.0 10 15 °C VOUTth(F) Outputs Programmed OFF Output Off Open Load Detect Current (Note 9) Ω RDS(ON) V IOCO Outputs Programmed OFF Output Clamp Voltage Low-Side Drive mA VOC(LSD) ID = 10 mA Output Clamp Voltage High-Side Drive V VOC(HSD) IS = -30 mA Output Leakage Current High-Side and Low-Side Configuration Overtemperature Shutdown Hysteresis (Note 10) µA IOUT(LKG) VDD = 0 V, VDS = 16 V Overtemperature Shutdown (Note 10) V Notes 9. Output Fault Detect Thresholds with outputs programmed OFF. Output fault detect threshold are the same for output open and shorts. 10. This parameter is guaranteed by design but is not production tested. 33880 8 MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, Go to: www.freescale.com Freescale Semiconductor, Inc. STATIC ELECTRICAL CHARACTERISTICS (continued) Characteristics noted under conditions of 4.75 V ≤ VDD ≤ 5.25 V, 9.0 V ≤ VPWR ≤ 16 V, -40°C ≤ TC ≤ 125°C unless otherwise noted. Typical values, where applicable, reflect the parameter’s approximate average value with VPWR = 13 V, TA = 25°C. Characteristic Symbol Min Typ Max Unit Input Logic Voltage Thresholds (Note 11) VINLOGIC 0.8 – 2.2 V -10 – 10 30 45 100 -10 – 10 -10 – 10 -30 – -100 VDD - 0.8 – VDD – – 0.4 – – 20 DIGITAL INTERFACE IN5, IN6, and EN Input Logic Current µA IIN5, IN6, EN IN5, IN6, EN = 0 V IN5, IN6, and EN Pull-Down Current µA IIN5, IN6, EN Freescale Semiconductor, Inc... 0.8 V to VDD SCLK, DI, and Tri-State DO Input µA ISCK, SI, TriSO 0 V to VDD µA IICS CS Input Current CS = VDD µA IICS CS Pull-Up Current CS = 0 V DO High-State Output Voltage VDOHIGH IDO-HIGH = -200 µA DO Low-State Output Voltage V VDOLOW IDO-HIGH = 1.6 mA Input Capacitance on SCLK, DI, Tri-State DO, IN5, IN6, EN (Note 12) CIN V pF Notes 11. Upper and lower logic threshold voltage levels apply to DI, CS, SCLK, IN5, IN6, and EN. 12. This parameter is guaranteed by design but is not production tested. MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, Go to: www.freescale.com 33880 9 Freescale Semiconductor, Inc. DYNAMIC ELECTRICAL CHARACTERISTICS Characteristics noted under conditions of 4.75 V ≤ VDD ≤ 5.25 V, 9.0 V ≤ VPWR ≤ 16 V, -40°C ≤ TC ≤ 125°C unless otherwise noted. Typical values, where applicable, reflect the parameter’s approximate average value with VPWR = 13 V, TA = 25°C. Characteristic Symbol Min Typ Max 0.1 0.5 1.2 0.1 0.5 1.2 0.1 0.3 1.2 0.1 0.3 1.2 Units POWER OUTPUT TIMING Output Slew Rate Low-Side Configuration (Note 13) Output Slew Rate Low-Side Configuration (Note 13) Freescale Semiconductor, Inc... V/µs tR RL = 620 Ω Output Slew Rate High-Side Configuration (Note 13) V/µs tF RL = 620 Ω Output Slew Rate High-Side Configuration (Note 13) V/µs tR RL = 620 Ω tF RL = 620 Ω V/µs Output Turn ON Delay Time, High-Side and Low-Side Configuration (Note 14) tDLY(ON) 1.0 15 50 µs Output Turn OFF Delay Time, High-Side and Low-Side Configuration (Note 14) tDLY(OFF) 1.0 30 100 µs tFAULT 100 – 300 µs Output Fault Delay Time (Note 15) Notes: 13. Output Rise and Fall time respectively measured across a 620 Ω resistive load at 10 to 90 percent and 90 to 10 percent voltage points. 14. Output turn ON and OFF delay time measured from 50 percent rising edge of CS to 90 and 10 percent of initial voltage. 15. Duration of fault before fault bit is set. Duration between access times must be greater than 300 µs to read faults. 33880 10 MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, Go to: www.freescale.com Freescale Semiconductor, Inc. DYNAMIC ELECTRICAL CHARACTERISTICS (continued) Characteristics noted under conditions of 4.75 V ≤ VDD ≤ 5.25 V, 9.0 V ≤ VPWR ≤ 16 V, -40°C ≤ TC ≤ 125°C unless otherwise noted. Typical values, where applicable, reflect the parameter’s approximate average value with VPWR = 13 V, TA = 25°C. Characteristic Symbol Min Typ Max Units – – 4.0 6.0 MHz – 4.0 10 DIGITAL INTERFACE TIMING Recommended Frequency of SPI Operation Required Low State Duration on VDD for Reset (Note 16) VDD ≤ 0.2 V Freescale Semiconductor, Inc... µs tRESET Falling Edge of CS to Rising Edge of SCLK (Required Setup Time) tLEAD 100 – – ns Falling Edge of SCLK to Rising Edge of CS (Required Setup Time) tLAG 50 – – ns DI to Falling Edge of SCLK (Required Setup Time) tDI(su) 16 – – ns Falling Edge of SCLK to DI (Required Hold Time) tDI(HOLD) 20 – – ns DI, CS, SCLK Signal Rise Time (Note 17) tR(DI) – 5.0 – ns DI, CS, SCLK Signal Fall Time (Note 17) tF(DI) – 5.0 – ns Time from Falling Edge of CS to DO Low Impedance (Note 18) tDO(EN) – – 60 ns Time from Rising Edge of CS to DO High Impedance (Note 19) tDO(DIS) – – 60 ns tVALID – 25 60 ns Time from Rising Edge of SCLK to DO Data Valid (Note 20) Notes 16. 17. 18. 19. 20. This parameter is guaranteed by design but is not production tested. Rise and Fall time of incoming DI, CS, and SCLK signals suggested for design consideration to prevent the occurrence of double pulsing. Time required for output status data to be available for use at DO pin. Time required for output status data to be terminated at DO pin Time required to obtain valid data out from DO following the rise of SCLK. MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, Go to: www.freescale.com 33880 11 Freescale Semiconductor, Inc. Timing Diagrams CS 0.2 VDD tLEAD tLAG 0.7 VDD SCLK 0.2 VDD tDI(SU) tDI(HOLD) 0.7 VDD 0.2 VDD Freescale Semiconductor, Inc... DI MSB in tDO(EN) tVALID 0.7 VDD 0.2 VDD DO tDO(DIS) MSB out LSB out Figure 2. SPI Timing Diagram VDD = 5.0 V SCLK 33880 Under Test VDD = 5.0 V DO CL = 200 pF NOTE: CL represents the total capacitance of the test fixture and probe. Figure 3. Valid Data Delay Time and Valid Time Test Circuit 33880 12 33880 CS Under Test VPull-Up = 2.5 V RL = 1.0 kΩ DO CL = 200 pF NOTE: CL represents the total capacitance of the test fixture and probe. Figure 4. Enable and Disable Time Test Circuit MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, Go to: www.freescale.com Freescale Semiconductor, Inc. tR(DI) VDD = 5.0 V VPWR = 13 V RL = 620 Ω 33880 Under Test CS tF(DI) <50 ns CS 90% 0.2 VDD (2.5 V) 10% <50 ns 0 tDO(dis) VTri-State tDO(EN) Output DO (Tri-State to Low) CL 5.0 V 0.7 VDD 90% 10% tDO(EN) Freescale Semiconductor, Inc... NOTE: CL represents the total capacitance of the test fixture and probe. Figure 5. Switching Time Test Circuit 0.7 VDD (2.5 V) SCLK tF(DI) < 50 ns DO (Low-to-High) DO (High-to-Low) 0.7 VDD 0.2 VDD tVALID 0 VOH tF(DI) <50 ns <50 ns 90% CS 0.2 VDD (2.5 V) 10% tDO(EN) DO (Tri-State to Low) tDO(DIS) VTri-State 10% t SO(DIS) tDO(EN) Figure 6. Valid Data Delay Time and Valid Time Waveforms MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA tDO(DIS) 90% DO VOL 0 90% VOH 0.2 VDD 5.0 V 0.7 VDD VOL tr(DO) 0.7 VDD tDLY(HL) tR(DI) < 50 ns 0.2 VDD tDLY(LH) VTri-State 10% Figure 7. Enable and Disable Time Waveforms 5.0 V 50% VOH 90% DO (Tri-State to High) tR(DI) tSO(DIS) tDO(DIS) 10% VOH VTri-State (Tri-State to High) Figure 8. Turn-ON/OFF Waveforms For More Information On This Product, Go to: www.freescale.com 33880 13 Freescale Semiconductor, Inc. 1.4 VPWR @ 16 V 12 10 1.0 All Outputs ON 8 All Outputs OFF 6 VPWR @ 16 V 1.2 RDS(ON) (Ω) IPWR Current into VPWR Pin (mA) 14 4 2 0.8 0.6 0.4 0.2 -40 -25 0 25 50 75 100 125 -40 -25 TA, Ambient Temperature (°C) 50 75 100 125 1.4 VPWR @ 16 V VPWR @ 16 V 1.2 1.0 0.8 0.6 0.4 0.2 -40 -25 -40 -25 0 0 25 50 75 100 25 50 75 100 TA, Ambient Temperature TA, Ambient Temperature (°C) 125 125 0 1.6 TA = 25°C IOUT(LIM), Current Limit (A) 50 40 30 20 10 0 5.0 10 15 20 VPWR 10 15 20 25 Figure 13. RDS(ON) vs. VPWR @ 250 mA 70 60 5.0 VPWR (V) Figure 10. Sleep State IPWR vs. Temperature 25 1.5 VPWR @ 16 V 1.4 1.3 1.2 1.1 1.0 -40 -25 0 25 50 75 100 125 TA, Ambient Temperature (°C) Figure 11. Sleep State IPWR vs. VPWR 33880 14 25 Figure 12. RDS(ON) vs. Temperature @ 250 mA RDS(ON) (Ω) IPWR IPWR Current Current into into VPWR VPWR Pin Pin (µA) (uA) 14 14 12 12 10 10 8 8 6 6 4 4 2 2 0 TA, Ambient Temperature (°C) Figure 9. IPWR vs. Temperature Sleep State IPWR versus Temperature IPWR Current into VPWR Pin (µA) Freescale Semiconductor, Inc... Typical Electrical Characteristics Figure 14. Current Limit IOUT(LIM) vs. Temperature MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, Go to: www.freescale.com Freescale Semiconductor, Inc. IOCO Open Load (mA) 1.2 1.4 VPWR @ 16 V High-Side Configuration 1.0 0.8 0.6 0.4 0.2 -40 -25 0 25 50 75 100 TA = 25°C 1.2 1.0 0.8 0.6 0.4 0.2 0 125 5.0 10 TA, Ambient Temperature (°C) 15 20 25 VPWR (V) Figure 15. Open Load Detect Current vs. Temperature IOUT(LKG), Leakage Current (µA) Freescale Semiconductor, Inc... IOCO, Open Load (mA) 1.4 Figure 16. Open Load Detect Current vs. VPWR 1.4 TA = 25°C 1.2 1.0 0.8 0.6 0.4 0.2 0 5.0 10 15 20 25 VPWR (V) Figure 17. Sleep State Output Leakage vs. VPWR MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, Go to: www.freescale.com 33880 15 Freescale Semiconductor, Inc. SYSTEM/APPLICATION INFORMATION INTRODUCTION The 33880 is an eight-output hardware configurable power switch with 8-bit serial control. The 33880 incorporates SMARTMOS 5 technology with CMOS logic, bipolar/MOS analog circuitry, and independent double diffused DMOS power output transistors. Many benefits are realized as a direct result of using this mixed technology. A simplified internal block diagram of the 33880 is shown in Figure 1, page 2. The 33880 device uses high-efficiency updrain power DMOS output transistors exhibiting low drain-to-source ON resistance values (RDS(ON) ≤ 0.55 Ω at 25°C) and dense CMOS control logic. All outputs have independent voltage clamps to provide fast inductive turn-off and transient protection. Operational bias currents of less than 4.0 mA on VDD and 12 mA on VPWR with any combination of outputs ON are a direct result of using SMARTMOS 5 technology. Freescale Semiconductor, Inc... MCU INTERFACE DESCRIPTION In operation the 33880 functions as an eight-output serial switch serving as a microcontroller (MCU) bus expander and buffer with fault management and fault reporting features. In doing so, the device directly relieves the MCU of the fault management functions. This device directly interfaces to an MCU using a Serial Peripheral Interface (SPI) for control and diagnostic readout. Figure 18 (below) and Figure 21, page 17, illustrate the basic SPI configuration between an MCU and one 33880. MC68HCxx Microcontroller Parallel Port CS MC68xx MISO MCU DO DI with SPI Interface 33880 33880 MOSI DI MISO DO Shift Register 8 Outputs DO DI CS SCLK DO DI 33880 33880 8 Outputs 8 Outputs Shift Register Receive Buffer Figure 19. 33880 SPI System Daisy Chain To Logic CS Multiple 33880 devices can be controlled in a parallel input fashion using the SPI. Figure 20 illustrates 24 loads being controlled by three dedicated parallel MCU ports used for chip select. MOSI SCLK MISO Figure 18. SPI Interface with Microcontroller All inputs are compatible with 5.0 V and 3.3 V CMOS logic levels and incorporate positive logic. Whenever an input is programmed to a logic low state (<0.8 V) the corresponding output will be OFF. Conversely, whenever an input is programmed to a logic high state (>2.2 V), the output being controlled will be ON. Diagnostics are treated in a similar manner. Outputs with a fault will feedback (via DO) to the microcontroller as a logic [1] while normal operating outputs will provide a logic [0]. Figure 19 illustrates the Daisy Chain configuration using the 33880. Data from the MCU is clocked daisy chain through each device while the Chip Select (CS) bit is commanded low by the MCU. During each clock cycle output status from the daisy chain, the 33880 is being transferred to the MCU via the Master In Slave Out (MISO) line. On rising edge of CS data stored in the input register is then transferred to the output driver. 33880 16 CS SCLK MOSI SCLK Parallel Ports SCLK DI SCLK DO 8 Outputs CS MC68xx Microcontroller SPI DI SCLK DO 8 Outputs CS Parallel Ports A B C DI SCLK DO 8 Outputs CS Figure 20. Parallel Input SPI Control MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, Go to: www.freescale.com Freescale Semiconductor, Inc... Freescale Semiconductor, Inc. Figure 21. Data Transfer Timing MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, Go to: www.freescale.com 33880 17 Freescale Semiconductor, Inc. FUNCTIONAL PIN DESCRIPTION Freescale Semiconductor, Inc... CS Pin The system MCU selects the 33880 to communicate through the use of the CS pin. Whenever the pin is in a logic low state, data can be transferred from the MCU to the 33880 device and vice versa. Clocked-in data from the MCU is transferred from the 33880 shift register and latched into the power outputs on the rising edge of the CS signal. On the falling edge of the CS signal, output status information is transferred from the power outputs status register into the device's shift register. The falling edge of CS enables the DO output driver. Whenever the CS pin goes to a logic low state, the DO pin output is enabled, thereby allowing information to be transferred from the 33880 to the MCU. To avoid any spurious data, it is essential the high-to-low transition of the CS signal occurs only when SCLK is in a logic low state. SCLK Pin The system clock pin (SCLK) clocks the internal shift registers of the 33880. The serial data input (DI) is latched into the input shift register on the falling edge of the SCLK. The serial data output pin (DO) shifts data out of the shift register on the rising edge of the SCLK signal. False clocking of the shift register must be avoided to guarantee validity of data. It is essential the SCLK pin be in a logic low state whenever chip select pin (CS) makes any transition. For this reason, it is recommended the SCLK pin is commanded to a logic low state when the device is not accessed (CS in logic high state). When the CS is in a logic high state, any signal at the SCLK and DI pin is ignored and the DO is tri-stated (high impedance). DI Pin This pin is used for serial instruction data input. DI information is latched into the input register on the falling edge of SCLK. A logic high state present on DI will program a specific output on. The specific output will turn on with the rising edge of the CS signal. Conversely, a logic low state present on the DI pin will program the output off. The specific output will turn off with the rising edge of the CS signal. To program the eight outputs of the 33880 device on or off, enter the DI pin beginning with Output 8, followed by Output 7, Output 6, and so on to Output 1. For each falling edge of the SCLK while CS is logic low, a data bit instruction (on or off) is loaded into the shift register per the data bit DI state. Eight bits of entered information fills the shift register. To preserve data integrity, do not transition DI as SCLK transitions from a high to low logic state. DO Pin The serial data output (DO) pin is the output from the shift register. The DO pin remains tri-state until the CS pin goes to a logic low state. All faults on the 33880 device are reported as logic [1] through the DO data pin. Regardless of the configuration of the driver, open loads and shorted loads are 33880 18 reported as logic [1]. Conversely, normal operating outputs with non-faulted loads are reported as logic [0]. The first positive transition of SCLK will make output eight status available on DO pin. Each successive positive clock will make the next output status available. The DI/DO shifting of data follows a first-infirst-out protocol with both input and output words transferring the most significant bit (MSB) first. EN Pin The EN pin on the 33880 device either enables or disables the internal charge pump. The EN pin must be high for this device to enhance the gates of the output drivers, perform fault detection, and reporting. Active outputs during a low transition of the EN pin will become active again when the EN transitions high. If this feature is not required, it is recommended the EN pin be connected to VDD. IN5 and IN6 Pins The IN5 and IN6 pins command inputs allowing outputs five and six to be used in PWM applications. IN5 and IN6 pins are ORed with the SPI communication input. For SPI control of outputs five and six, the IN5 and IN6 pins should be grounded or held low by the microprocessor. In the same manner, when using the PWM feature the SPI port must command the outputs off. Maximum PWM frequency for each output is 2.0 kHz. VDD Pin The VDD pin supplies logic power to the 33880 device and is used for power-on reset (POR). To achieve low standby current on VPWR supply, power must be removed from the VDD pin. The device will be in reset with all drivers off when VDD is below 3.9 VDC. D1–D8 Pins The D1–D8 pins are the open drain outputs of the 33880. For High-Side Drive configurations, the drain pins are connected to battery supply. In Low-Side Drive configurations, the drain pins are connected to the low side of the load. All outputs may be configured individually as desired. When Low-Side Drive is used, the 33880 limits the positive transient for inductive loads to 45 V. S1–S8 Pins The S1–S8 pins are the source outputs of the 33880. For High-Side Drive configurations, the source pins are connected directly to the load. In Low-Side Drive configurations the source is connected to ground. All outputs may be configured individually as desired. When High-Side drive is used, the 33880 will limit the negative transient for inductive loads to -20 V. MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, Go to: www.freescale.com Freescale Semiconductor, Inc. FAULT OPERATION On each SPI communication, an 8-bit command word is sent to the 33880 and an 8-bit fault word is received from the 33880. The Most Significant Bit (MSB) is sent and received first (see below). Command Register Definition: 0 = Output Command Off 1 = Output Command On Fault Register Definition: MSB OUT8 LSB OUT7 OUT6 OUT5 OUT4 OUT3 OUT2 OUT1 0 = No fault 1 = Fault. Table 1. Fault Operation Freescale Semiconductor, Inc... Serial Output (SO) Pins Reports Overtemperature Fault reported by Serial Output (DO) pin. Overcurrent DO pin reports short to battery/supply or overcurrent condition. Output ON Open Load Fault Not reported. Output OFF Open Load Fault DO pin reports output OFF open load condition. Device Shutdowns Overvoltage Total device shutdown at VPWR = 25 V to 30 V. Resumes normal operation with proper voltage. All outputs assuming the previous state upon recovery from overvoltage. Overtemperature Only the output experiencing an overtemperature fault shuts down. Output assumes previous state upon recovery from overtemperature. APPLICATIONS Power Consumption The 33880 device has been designed with one sleep and one operational mode. In the sleep mode (VDD ≤ 2.0 V), the current consumed by VPWR pin is less than 25 µA. To place the 33880 in the sleep mode, turn all outputs off, then remove power from VDD and the EN (enable) input pin. Prior to removing power from the device, it is recommended all control inputs from the microcontroller are low. During normal operation, 4.0 mA will be drawn from the VDD supply and 12 mA from the VPWR supply. Paralleling of Outputs Using MOSFETs as output switches allows the connection of any combination of outputs together. RDS(ON) of MOSFETs have an inherent positive temperature coefficient, providing balanced current sharing between outputs without destructive operation. The device can even be operated with all outputs tied together. This mode of operation may be desirable in the event the application requires lower power dissipation or the added capability of switching higher currents. Performance of parallel operation results in a corresponding decrease in RDS(ON) while the outputs OFF open load detect currents and the output current limits increase correspondingly (by a factor of eight if all MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA outputs are paralleled). Paralleling outputs from two or more different IC devices are possible but not recommended. Fault Logic Operation Fault logic of the 33880 device has been greatly simplified over other devices using SPI communications. As command word one is being written into the shift register, a fault status word is being simultaneously written out and received by the MCU. Regardless of the configuration, with no outputs faulted, all status bits being received by the MCU will be zero. When outputs are faulted (off state open circuit or on state short circuit/overtemperature), the status bits being received by the MCU will be one. The distinction between open circuit fault and short circuit/overtemperature is completed via the command word. For example, when a zero command bit is sent and a one fault is received in the following word, the fault is open/short-tobattery for high-side drive or open/short to ground for low-side drive. In the same manner, when a one command bit is sent and a one fault is received in the following word the fault is a shortto-ground/overtemperature for high-side drive or short-tobattery/overtemperature for low-side drive. The timing between two write words must be greater than 300 µs to allow adequate time to sense and report the proper fault status. For More Information On This Product, Go to: www.freescale.com 33880 19 Freescale Semiconductor, Inc. SPI Integrity Check It is recommended that one check the integrity of the SPI communication with the initial power-up of the VDD and EN pins. After initial system start-up or reset, the MCU will write one 16-bit pattern to the 33880. The first eight bits read by the MCU will be the fault status of the outputs, while the second eight bits will be the first byte of the bit pattern. Bus integrity is confirmed by the MCU receiving the same bit pattern it sent. Please note that the second byte the MCU sends to the device is the command byte and will be transferred to the outputs with rising edge of CS. Freescale Semiconductor, Inc... Overtemperature Fault Overtemperature detect and shutdown circuits are specifically incorporated for each individual output. The shutdown following an overtemperature condition is independent of the system clock or any other logic signal. Each independent output shuts down at 155°C to 185°C. When an output shuts down due to an overtemperature fault, no other outputs are affected. The MCU recognizes the fault by a one in the fault status register. After the 33880 device has cooled below the switch point temperature and 15°C hysteresis, the output will activate unless told otherwise by the MCU via SPI to shut down. Overvoltage Fault An overvoltage condition on the VPWR pin will cause the device to shut down all outputs until the overvoltage condition is removed. When the overvoltage condition is removed, the outputs will resume their previous state. This device does not detect an overvoltage on the VDD pin. The overvoltage threshold on the VPWR pin is specified as 25 V to 30 V with 1.0 V typical hysteresis. A VPWR overvoltage detect is global, causing all outputs to be turned OFF. This device has an internal 650 µA current source connected from drain to source of the output MOSFET. This prevents either configuration of the driver from having a floating output. To achieve low sleep mode quiescent currents, the open load detect current source of each driver is switched off when VDD is removed. During output switching, especially with capacitive loads, a false output OFF open load fault may be triggered. To prevent this false fault from being reported, an internal fault filter of 100 µs to 300 µs is incorporated. A false fault reporting is a function of the load impedance, RDS(ON) , COUT of the MOSFET, as well as the supply voltage, VPWR. The rising edge of CS triggers the built-in fault delay timer. The timer will time out before the fault comparator is enabled and the fault is detected. Once the condition causing the open load fault is removed, the device will resume normal operation. The open load fault however, will be latched in the output DO register for the MCU to read. Shorted Load Fault A shorted load (overcurrent) fault can be caused by any output being shorted directly to supply or an output causing the device to current limit (linear short). There are two safety circuits progressively in operation during load short conditions providing system protection: 1. The device’s output current is monitored in an analog fashion using SENSEFET approach and current limited. 2. The device’s output thermal limit is sensed and when attained causes only the specific faulted output to shut down. The output will remain off until cooled. The device will then reassert the output automatically. The cycle will continue until the fault is remove or the command bit instructs the output off. Output OFF Open Load Fault Undervoltage Shutdown An output OFF open load fault is the detection and reporting of an open load when the corresponding output is disabled (input bit programmed to a logic low state). The output OFF open load fault is detected by comparing the drain-to-source voltage of the specific MOSFET output to an internally generated reference. Each output has one dedicated comparator for this purpose. An undervoltage VDD condition will result in the global shutdown of all outputs. The undervoltage threshold is between 3.9 V and 4.6 V. When VDD goes below the threshold, all outputs are turned OFF and the Fault Status (FS) register is cleared. As VDD returns to normal levels, the FS register will resume normal operation. An output off open load fault is indicated when the drain-tosource voltage is less than the output threshold voltage (VTHRES) of 1.0 V to 3.0 V. Hence, the 33880 will declare the load open in the OFF state when the VDS is less than 1.0 V. 33880 20 An undervoltage condition at the VPWR pin will not cause output shutdown and reset. When VPWR is between 5.5 V and 9.0 V, the output will operate per the command word. However, the status as reported by the serial data output (DO) pin may not be accurate below 9.0 V VPWR. Proper operation at VPWR voltages below 5.5 V cannot be guaranteed. MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, Go to: www.freescale.com Freescale Semiconductor, Inc... Freescale Semiconductor, Inc. Output Voltage Clamp SPI Configurations Each output of the 33880 incorporates an internal voltage clamp to provide fast turn-off and transient protection of each output. Each clamp independently limits the drain-to-source voltage to 45 V for low-side drive configurations and -20 V for high-side drive configurations (see Figure 22). The total energy clamped (EJ ) can be calculated by multiplying the current area under the current curve (IA) times the clamp voltage (VCL). The SPI configuration on the 33880 device is consistent with other devices in the OSS family. This device may be used in serial SPI or parallel SPI with the 33291 and 33298. Different SPI configurations may be provided. For more information, contact Analog Products Division. Characterization of the output clamps, using a single pulse non-repetitive method at 0.3 A, indicates the maximum energy to be 50 mJ at 150°C junction temperature per output. The 33880 has been designed with reverse battery protection on the VPWR pin. However, the device does not protect the load from reverse battery. During the reverse battery condition, current will flow through the load via the output MOSFET substrate diode. Under this circumstance relays may energize and lamps will turn on. If load reverse battery protection is desired, a diode must be placed in series with the load. Drain-to-Source Clamp Voltage (VCL = 45 V) Drain Voltage Drain Current (ID = 0.3 A) Drain-to-Source ON Voltage (VDS(ON)) Reverse Battery Clamp Energy (EJ = IA x VCL) Current Area (IA) Time GND VBAT Drain-to-Source ON Voltage (VDS(ON)) GND Time Current Area (IA) Clamp Energy (EJ = IA x VCL) Source Current (IS = 0.3 A) Source Clamp Voltage (VCL = -20 V) Source Voltage Figure 22. Output Voltage Clamping MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, Go to: www.freescale.com 33880 21 Freescale Semiconductor, Inc. PACKAGE DIMENSIONS DW SUFFIX 28-PIN SOIC PLASTIC PACKAGE CASE 751-05 ISSUE F D A NOTES: 1. DIMENSIONS ARE IN MILLIMETERS. 2. INTERPRET DIMENSIONS AND TOLERANCES PER ASME Y14.5M, 1994. 3. DIMENSIONS D AND E DO NOT INCLUDE MOLD PROTRUSIONS. 4. MAXIMUM MOLD PROTRUSION 0.015 PER SIDE. 5. DIMENSION B DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.13 TOTAL IN EXCESS OF B DIMENSION AT MAXIMUM MATERIAL CONDITION. 15 M 0.25 E H B M 28 Freescale Semiconductor, Inc... 1 14 PIN 1 IDENT A1 A B e B 0.025 33880 22 C M C A S B S L 0.10 SEATING PLANE C θ DIM A A1 B C D E e H L θ MILLIMETERS MIN MAX 2.35 2.65 0.13 0.29 0.35 0.49 0.23 0.32 17.80 18.05 7.40 7.60 1.27 BSC 10.05 10.55 0.41 0.90 0° 8° MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, Go to: www.freescale.com Freescale Semiconductor, Inc. DWB SUFFIX 32-PIN SOIC PLASTIC PACKAGE CASE 1324-02 ISSUE A 10.3 7.6 7.4 C 5 Freescale Semiconductor, Inc... 1 B 2.65 2.35 9 30X 32 0.65 PIN 1 ID 4 B 9 B 16 11.1 10.9 CL 17 A 5.15 32X 2X 16 TIPS 0.3 SEATING PLANE 0.10 A A B C A (0.29) A 0.25 0.19 BASE METAL (0.203) 6 0.13 0.38 0.22 M C A MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA R0.08 MIN 0.25 PLATING M B SECTION A-A ROTATED 90 ° CLOCKWISE NOTES: 1. ALL DIMENSIONS ARE IN MILLIMETERS. 2. DIMENSIONING AND TOLERANCING PER ASME Y14.5M, 1994. 3. DATUMS B AND C TO BE DETERMINED AT THE PLANE WHERE THE BOTTOM OF THE LEADS EXIT THE PLASTIC BODY. 4. THIS DIMENSION DOES NOT INCLUDE MOLD FLASH, PROTRUSION OR GATE BURRS. MOLD FLASH, PROTRUSION OR GATE BURRS SHALL NOT EXCEED 0.15 MM PER SIDE. THIS DIMENSION IS DETERMINED AT THE PLANE WHERE THE BOTTOM OF THE LEADS EXIT THE PLASTIC BODY. 5. THIS DIMENSION DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSIONS. INTERLEAD FLASH AND PROTRUSIONS SHALL NOT EXCEED 0.25 MM PER SIDE. THIS DIMENSION IS DETERMINED AT THE PLANE WHERE THE BOTTOM OF THE LEADS EXIT THE PLASTIC BODY. 6. THIS DIMENSION DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL NOT CAUSE THE LEAD WIDTH TO EXCEED 0.4 MM PER SIDE. DAMBAR CANNOT BE LOCATED ON THE LOWER RADIUS OR THE FOOT. MINIMUM SPACE BETWEEN PROTRUSION AND ADJACENT LEAD SHALL NOT LESS THAN 0.07 MM. 7. EXACT SHAPE OF EACH CORNER IS OPTIONAL. 8. THESE DIMENSIONS APPLY TO THE FLAT SECTION OF THE LEAD BETWEEN 0.10 MM AND 0.3 MM FROM THE LEAD TIP. 9. THE PACKAGE TOP MAY BE SMALLER THAN THE PACKAGE BOTTOM. THIS DIMENSION IS DETERMINED AT THE OUTERMOST EXTREMES OF THE PLASTIC BODY EXCLUSIVE OF MOLD FLASH, TIE BAR BURRS, GATE BURRS AND INTER-LEAD FLASH, BUT INCLUDING ANY MISMATCH BETWEEN THE TOP AND BOTTOM OF THE PLASTIC BODY. GAUGE PLANE 8 8° 0° For More Information On This Product, Go to: www.freescale.com 0° MIN 0.29 0.13 0.9 0.5 SECTION B-B 33880 23 Freescale Semiconductor, Inc... Freescale Semiconductor, Inc. Motorola reserves the right to make changes without further notice to any products herein. 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MOTOROLA and the Stylized M Logo are registered in the US Patent and Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc. 2004 HOW TO REACH US: USA/EUROPE/LOCATIONS NOT LISTED: Motorola Literature Distribution: P.O. Box 5405, Denver, Colorado 80217. 1-303-675-2140 or 1-800-441-2447 JAPAN: Motorola Japan Ltd.; SPS, Technical Information Center, 3-20-1 Minami-Azabu. Minato-ku, Tokyo 106-8573 Japan. 81-3-3440-3569 ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; Silicon Harbour Centre, 2 Dai King Street, Tai Po Industrial Estate, Tao Po, N.T., Hong Kong. 852-26668334 TECHNICAL INFORMATION CENTER: 1-800-521-6274 For More Information On This Product, Go to: www.freescale.com MC33880/D