LV8139JA Sine wave PWM Drive, Pre drive IC, for Brushless Motor Drive Overview The LV8139JA is a PWM system pre driver IC designed for three-phase brushless motors. This IC reduces motor driving noise by using a high-efficiency, sine wave PWM drive type. It incorporates a full complement of protection circuits and, by combining it with a hybrid IC in the STK611 or STK5C4 series, the number of components used can be reduced and a high level of reliability can be achieved. Furthermore, its power-saving mode enables the power consumption in the standby mode to be reduced to zero. This IC is optimally suited for driving various large-size motors such as those used in air conditioners and hot-water heaters. Features • Three-phase bipolar drive • Sine wave PWM drive • Drive phase setting function (Set 0-58 degrees 32 steps: There is an adjustment function corresponding to the CTL pin input) • Supports power saving mode(power saving mode at CTL pin voltage of 0.95V (typ) or less; ICC = 0mA, HB pin turned off) • Supports bootstrap • Automatic recovery type constraint protection circuit • Forward/reverse switching circuit, Hall bias pin • Current limiter circuit, low-voltage protection circuit, and thermal shutdown protection circuit • FG1 and FG3 output (360-degree electrical angle/1 pulse and 3 pulses) Typical Applications • Air Purifier • Clothes Dryer • Air conditioners • Consumer www.onsemi.com SSOP30 (275mil) GENERIC MARKING DIAGRAM* XXXXXXXXXX YMDDD XXXXX = Specific Device Code Y = Year M = Month DDD = Additional Traceability Data ORDERING INFORMATION Ordering Code: LV8139JA-AH Package SSOP30 (275mil) (Pb-Free / Halogen Free) Shipping (Qty / packing) 1000 / Tape & Reel † For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. http://www.onsemi.com/pub_link/Collateral/BRD8011-D.PDF © Semiconductor Components Industries, LLC, 2016 April 2016- Rev. 1 1 Publication Order Number: LV8139JA/D LV8139JA Specifications Absolute Maximum Ratings at Ta = 25C (Note 1) Parameter Supply voltage Symbol VCC max Conditions Ratings Unit VCC pin 18 V Output current IO max 15 mA Allowable power dissipation Pd max1 Independent IC 0.45 W Pd max2 Mounted on a specified circuit board. (Note 2) 1.05 W CTL pin applied voltage VCTL max 18 V FG1,FG3 pin applied voltage VFG1 max 18 V Junction temperature VFG3 max Tj max 150 C Operating temperature Topr -40 to +105 C Storage temperature Tstg -55 to +150 C 1. Stresses exceeding those listed in the Absolute Maximum Rating table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. 2. Specified circuit board : 114.3mm 76.1mm 1.6mm, glass epoxy Recommendation Operating Range at Ta = 25C (Note 3) Parameter Symbol Conditions Ratings Unit Supply voltage range VCC 9.5 to 16.5 VREG5 pin output current IREG -10 mA V HB pin output current IHB -30 mA FG1,FG3 pin output current IFG1, IFG3 10 mA 3. Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond the Recommended Operating Ranges limits may affect device reliability. Electrical Characteristics at Ta 25C, VCC = 15V (Note 4) Ratings Parameter Symbol Conditions Unit min Supply current 1 ICC1 Supply current 2 ICC2 typ At stop (CTL VIL1) max 4 6 mA 0 10 A 25 40 0.25 V Output Block (Pin HIN1, HIN2, HIN3, LIN1, LIN2 and LIN3) High level output voltage VHO IO = -10mA Upper output ON resistance RONH IO = -10mA VREG-0.40 VREG-0.25 Low level output voltage VLO IO = 10mA 0.15 Lower output ON resistance RONL IO = 10mA 15 Output leakage current IOleak Bootstrap charge pulse width Tboot 1.6 Output minimum dead time Tdt V 25 10 A 2.5 3.4 s 1.6 2.5 3.4 s 4.7 4.9 5.1 V 5V Constant Voltage Output (VREG5 pin) Output voltage VREG IO = -5mA Voltage fluctuation V (REG1) VCC = 9.5 to 16.5V, IO = -5mA 100 mV Load fluctuation V (REG2) IO = -5 to -10mA 100 mV A Hall Amplifier (Pin IN1+, IN1-, IN2+, IN2-, IN3+ and IN3-) Input bias current IB (HA) -1 0 Common-mode input voltage range 1 VICM1 When a Hall element is used 0.3 VREG-1.8 V Common-mode input voltage range 2 VICM2 Single-sided input bias mode 0 VREG V Hall input sensitivity VHIN Sine wave, (when a Hall IC is used) 80 mVp-p Hall element offset = 0V Hysteresis width VIN (HA) Input voltage Low High VSLH Input voltage High Low VSHL 15 30 45 mV 5 15 25 mV -25 -15 -5 mV Continued on next page. www.onsemi.com 2 LV8139JA Continued from preceding page. Ratings Parameter Symbol Conditions Unit min typ max CSD Oscillator Circuit (CSD pin) High level output voltage VOH (CSD) 2.75 2.95 3.15 V Low level output voltage VOL (CSD) 0.85 1.05 1.25 V Amplitude V (CSD) 1.7 1.9 2.1 Vp-p External capacitor charging current ICHG1 (CSD) VCHG1 = 2.0V -14 -10 -6 A External capacitor discharging ICHG2 (CSD) VCHG2 = 2.0V 6 10 14 A LRTO Drive OFF/drive ON current Lock detection ON/OFF time ratio 11 PWM Oscillator (PWM pin) High level output voltage VOH (PWM) 3.3 3.5 3.7 V Low level output voltage VOL (PWM) 1.3 1.5 1.7 V 2.0 2.2 Vp-p Amplitude V (PWM) Oscillation frequency f (PWM) 1.8 C = 2200pF, R = 15k 17.3 kHz (design target value) Current Limiter Operation (RF pin) Limiter voltage VRF 0.225 0.25 0.275 V 150 175 C 35 C Thermal Shutdown Protection Operation Thermal shutdown protection TSD operating temperature Hysteresis width Design target value (Note 5) (junction temperature) TSD Design target value (Note 5) (junction temperature) TH pin Protection start voltage VTH 0.50 0.65 0.80 V Hysteresis width VTH 0.32 0.42 0.52 V HB pin Output ON resistance RON (HB) IHB = -10mA Output leakage current IL (HB) Power saving mode VCC = 15V 10 20 10 A Low Voltage Protection Circuit (detecting VCC voltage) Operation voltage VSD Hysteresis width VSD 7.4 7.9 8.4 V 0.35 0.5 0.65 V 40 60 10 A VCC V FG1 FG3 Pin Output ON resistance RON (FG) IFG = 5mA Output leakage current IL (FG) VFG = 18V CTL Amplifier (drive mode) Input voltage range VIN (CTL) High level input voltage VIH (CTL) HIN pin PWM ON duty 100% 0 Middle level input voltage 1 VIM1 (CTLI) 4.4 4.6 4.8 V HIN pin PWM ON duty 0% 2.15 2.35 2.55 V VIM2 (CTLI) HIN pin PWM ON duty 0% 1.9 2.1 2.3 V IIH1 (CTLI) VCTL = 3.5V 13 25 37 A IIH2 (CTLI) VCTL = 3.5V 10 20 30 A Low level input voltage VIL1 (CTL) Power saving mode 0.75 0.95 1.15 V Hysteresis width CTL 0.15 0.35 0.55 V (At drive start) Middle level input voltage 2 (During drive) Input current (During drive in 120-degree current-carrying mode) Input current (During drive in sine wave current-carrying mode) CTL Amplifier (power saving mode) Continued on next page. www.onsemi.com 3 LV8139JA Continued from preceding page. Ratings Parameter Symbol Conditions Unit min typ max F/R Pin High level input voltage range VIH (FR) 3.0 Low level input voltage range VIL (FR) 0 Input open voltage VIO (FR) Hysteresis width VIS (FR) VREG V 0.7 V 0 0.3 V 0.15 0.3 0.45 V High level input current IIH (FR) VF/R = VREG 25 45 65 A Low level input current IIL (FR) VF/R = 0V -2 0 +2 A FAULT Pin Drive stop voltage VFOF 0 0.5 V Drive start voltage VFON 3.0 VREG V Input open voltage VIO (FLT) 4.6 VREG 0 10 A -200 -160 -120 A 0 2 High level input current IIH (FLT) VFAULT=VREG Low level input current IIL (FLT) VFAULT=0V V ADP1 Pin (drive phase adjustment) Minimum lead angle Vadp01 VADP1 = 0V Maximum lead angle Vadp16 VADP1 = VREG 56 58 Deg Current ratio with the ADP2 pin ADP VCTL = 5.5V, IADP1/IADP2 1.8 2 2.2 A/A High level output voltage VADP2H VCTL = 5.5V 2.25 2.45 2.65 V Low level output voltage VADP2L VCTL = 1.5V 0 0.3 V Deg current ADP2 Pin (drive phase adjustment) DPL Pin (drive-phase-adjustment limit setting pin) Lead angle limit high level voltage VDPLH 3.3 3.5 3.7 V Lead angle limit low level voltage VDPLL 1.3 1.5 1.7 V 4. Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product performance may not be indicated by the Electrical Characteristics if operated under different conditions. 5. These are design target values and no measurements are made. www.onsemi.com 4 LV8139JA Package Dimensions unit : mm (typ) SSOP30 (275mil) CASE 565AT ISSUE A 7.00 (Unit: mm) 1.00 SOLDERING FOOTPRINT* 0.65 0.32 NOTE: The measurements are not to guarantee but for reference only. www.onsemi.com 5 LV8139JA Pdmax-Ta diagram Pd max - Ta Allowable power dissipation, Pd max -- W 1.5 1.05 1.0 Specified circuit board : 114.3 × 76.1 × 1.6mm3 glass epoxy Mounted on a specified circuit board. Independent IC 0.5 0.45 0.38 0.16 0 --40 --20 0 20 40 60 80 100 120 Ambient temperature, Ta -- C HB HIN1 HIN2 HIN3 LIN1 LIN2 LIN3 FAULT TH RF TGND VREG5 FR RPWM CPWM Pin Assignment 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 IN1+ IN1- IN2+ IN2- IN3+ IN3- GND VCC CTL DPL FG3 FG1 ADP2 CSD ADP1 LV8139JA Top view www.onsemi.com 6 www.onsemi.com 7 FG3 Output FG3 FG1 ADP1 ADP2 DPL FG Rotate Detect Drive Phase Setting Drive Phase Revise CSD OSC VCC OUT GND PWM OSC FR RESET CTL Input TSD MOSC FAULT LVSD F/R Input CTL RPWM CPWM FR CTL AMP PWM Generate CONTROL CIRCUIT HALL HYS AMP VREG GND CURR LIM PRE Driver HB VREG5 VCC RF TH LIN3 LIN2 LIN1 HIN3 HIN2 HIN1 FAULT HB 22 TGND + VCC VREG5 Rf 1k 1k 1k VREG5 68 RCIN U-,V-,W- ITRIP TH2 TH1 LIN3 LIN2 LIN1 HIN3 HIN2 HIN1 FAULT ENABLE VS3,WOUT VDD VSS VS2,VOUT VB3 VS1,UOUT VB2 VB1 VCC VS3,WOUT VS2,VOUT VS1,UOUT STK5C4-XXX + M VM Sample Application Circuit 1 (Hall IC, HIC) The Hall IC to be used must be of open-collector or open-drain output type, and it must be pulled up by VREG5. The type of Hall IC incorporating a pull-up resistor cannot be used. FG1 Output VREG5 VREG5 CSD VCC OUT GND IN1+ IN1- IN2+ IN2- IN3+ IN3- VCC OUT GND Hall IC Open Corrector/Drain type LV8139JA Furthermore, when using an element that cannot turn off the control power while VM is being applied, the control power must be supplied from the VCC pin rather than from the HB pin. www.onsemi.com 8 FG3 Output FG3 FG1 ADP1 ADP2 DPL FG Rotate Detect Drive Phase Setting Drive Phase Revise CSD OSC VCC OUT GND PWM OSC FR RESET CTL Input TSD MOSC FAULT LVSD VREG F/R Input CTL RPWM CPWM FR CTL AMP PWM Generate CONTROL CIRCUIT HALL HYS AMP GND CURR LIM PRE Driver HB VREG5 VCC VCC RF TH LIN3 LIN2 LIN1 68 VREG5 HIN3 HIN2 HIN1 VREG5 HB 22 TGND + 1k 1k 1k HOUT DRV_LO GND 4 HOUT VBOOT GND DRV_LO IN_LO BRIDGE IN_HI 2 CC NCP5106 V 1 4 5 6 7 8 5 6 7 8 MURA260T3 DRV_LO IN_LO BRIDGE HOUT VBOOT 3 IN_HI 2 CC NCP5106 V 3 5 6 7 8 MURA260T3 GND IN_LO BRIDGE IN_HI VBOOT NCP5106 VCC 1 4 3 2 1 MURA260T3 Rf WOUT VOUT UOUT M VM + Sample Application Circuit 2 (Hall IC, FET) The Hall IC to be used must be of open-collector or open-drain output type, and it must be pulled up by VREG5. The type of Hall IC incorporating a pull-up resistor cannot be used. FG1 Output VREG5 VREG5 CSD VCC OUT GND IN1+ IN1- IN2+ IN2- IN3+ IN3- VCC OUT GND Hall IC Open Corrector/Drain type LV8139JA Furthermore, when using a gate driver that cannot turn off the control power while VM is being applied, the control power must be supplied from the VCC pin rather than from the HB pin. An element with a short reverse recovery time must be selected as the output FET. LV8139JA Pin Functions Pin No. 1 2 3 4 5 6 Pin Name IN1+ IN1IN2+ IN2IN3+ IN3- Pin function Equivalent Circuit Hall signal input pins. The high state is when IN+ is greater than IN-, and the low state is the VREG reverse. An amplitude of at least 100mVp-p (differential) is desirable for the Hall signal inputs. If noise on the Hall signals is a problem, insert capacitors between IN+ and IN- pins. 1 If input is provided from a Hall IC, fix one 3 side of the inputs (either the “+” or “-” 5 500 2 500 4 6 side) at a voltage within the common-mode input range (0.3V to VREG-1.8V), and use the other input side as an input over the 0V to VREG range. 7 GND Ground pin of the control circuit block. 8 VCC Power supply pin for control. Insert a capacitor between this pin and ground to prevent the influence of noise, etc. 9 CTL Control input pin. When CTL pin voltage VREG rises, the IC changes the output signal VCC PWM duty to increase the torque output. In sine wave mode, Nch FET (in equivalent circuit diagram) OFF 45k In 120-degree current-carrying mode, Nch FET ON 9 86.6k 38.4k 10 DPL Setting pin for drive phase adjustment VREG limit. This pin is used to limit the lead angle of the drive phase. The lead angle is limited to zero degrees when the voltage 500 is 1.5V or lower and the limit is released 10 when the voltage is 3.5V or higher. 11 FG3 FG3 : 3-Hall FG signal output pin. 8-pole motor outputs 12 FG pulses per VREG 11 12 one rotation. In power saving mode, high-level is output. 12 FG1 25 FG1 :1-Hall FG signal output pin. 8-pole motor outputs 4 pulses per one rotation. In power saving mode, high-level is output. Continued on next page. www.onsemi.com 9 LV8139JA Continued from preceding page. Pin No. 13 Pin Name ADP2 Pin function Equivalent Circuit Setting pin for phase drive correction. VCC This pin sets the amount of correction made to the lead angle according to the CTL input. Insert a resistor between this VREG pin and ground to adjust the amount of VREG correction. 500 500 13 14 CSD Pin to set the operating time of the motor VREG constraint protection circuit. Insert a capacitor between this pin and ground. Connect this pin to ground when the constraint protection circuit is not going 500 to be used. 14 500 15 ADP1 Drive phase adjustment pin. The drive phase can be advanced from VREG VCC 0 to 58 degrees during 180-degree current carrying drive. The lead angle becomes 0 degrees when 0V is input and 58 degrees when VREG is input. 500 AD 15 500 16 CPWM Triangle wave oscillation pin for PWM VREG generation. Insert a capacitor between this pin and ground and a resistor between this pin and RPWM for triangle wave oscillation. 200 16 17 RPWM Oscillation pin for PWM generation. VREG Insert a resistor between this pin and CPWM. 17 Continued on next page. www.onsemi.com 10 LV8139JA Continued from preceding page. Pin No. 18 Pin Name FR Pin function Equivalent Circuit FR VREG Forward/reverse rotation setting pin. A low-level specifies forward rotation and a high-level specifies reverse rotation. This pin is held low when open. 2k 20 TGND 18 20 TGND Test pin. Connect this pin to ground. 100k 19 VREG5 5V regulator output pin VCC (control circuit power supply). Insert a capacitor between this pin and 50 ground for power stabilization. 0.1F or so is desirable. 19 21 RF Output current detection pin. VREG This pin is used to detect the voltage across the current detection resistor (Rf). The maximum output current is determined by the equation IOUT = 0.25V/Rf. 5k 22 TH Thermistor connection pin. 21 VREG The thermistor detects heat generated from HIC and turns off the drive output when an overheat condition occurs. All the HIN/LIN output pins are set to low at a pin voltage of 0.6V or less. 500 22 * For further details, refer to “Description of LV8139JA.” Continued on next page. www.onsemi.com 11 LV8139JA Continued from preceding page. Pin No. 23 Pin Name FAULT Pin function Equivalent Circuit HIC protection signal input pin. VREG This pin accepts an error mode detection signal generated by the HIC side. 30k With a low-level input, the error mode 500 detection condition is established, and 23 all the HIN/LIN output pins are set to low. * For further details, refer to “Description of LV8139JA.” 24 LIN3 LIN1, LIN2, and LIN3 : 25 LIN2 L side drive signal output pin. 26 LIN1 Generate 0 to VREG push-pull outputs. 27 HIN3 HIN1, HIN2, and HIN3 : 28 HIN2 H side drive signal output pin. 29 HIN1 Generate 0 to VREG push-pull outputs. 30 HB VREG 24 27 25 28 Hall bias HIC power supply pin. Insert a capacitor between this pin and 500 26 29 VCC ground. This pin is set to high-impedance state in power saving mode. By supplying Hall bias and HIC power using this pin, the power consumption by Hall bias and HIC in power saving mode can be reduced to zero. www.onsemi.com 12 30 LV8139JA Timing Chart (IN = “H”indicates the state in which IN+ is greater than IN-.) (1) F/R pin = L Normal Hall input Lead Angle=0 IN1+ IN1IN2+ IN1IN3+ IN1- IN1 IN2 IN3 H L H H L L H H L L H L L H H L L H H L H H L L H H L L H L L H H L L H F/R="L" 120 energization ON HIN1 U LIN1 PWM OFF OFF PWM ON ON HIN2 V LIN2 OFF OFF PWM PWM PWM ON ON W HIN3 LIN3 PWM PWM OFF OFF ON F/R="L" sin wave drive method Max Duty UOUT H Duty 0% Max Duty VOUT H Duty 0% Max Duty WOUT H Duty 0% F/R="H" 120 energization in reverse rotate ON HIN1 U LIN1 OFF OFF PWM PWM ON ON HIN2 V LIN2 OFF OFF PWM PWM ON ON W HIN3 LIN3 PWM OFF OFF PWM ON 3 Hall FG 1 Hall FG The energization is switched to 120 wher 3 Hall FG frequency is 5.15Hz (typ) or lower A direction of rotation is detected from Hall signal according to F/R pin input www.onsemi.com 13 If the motor rotates in reverse against F/R pin input 120 energization is maintained forcibly LV8139JA (2) F/R pin = H Reverse Hall input Lead Angle=0 IN1+ IN1IN2+ IN1IN3+ IN1- IN1 IN2 IN3 L L H L H H L H L H H L H L L H L H L L H L H H L H L H H L H L L H L H F/R="H" 120 energization ON HIN1 U LIN1 PWM OFF OFF PWM ON ON HIN2 V LIN2 PWM OFF OFF PWM ON ON W HIN3 LIN3 OFF OFF PWM PWM ON F/R="H" sin wave drive method Max Duty UOUT H Duty 0% Max Duty VOUT H Duty 0% Max Duty WOUT H Duty 0% F/R="L" 120 energization in reverse rotate ON HIN1 U LIN1 PWM OFF OFF PWM ON ON HIN2 V LIN2 OFF OFF PWM PWM ON ON W HIN3 LIN3 OFF OFF PWM PWM ON 3 Hall FG 1 Hall FG The energization is switched to 120 wher 3 Hall FG frequency is 5.15Hz (typ) or lower A direction of rotation is detected from Hall signal according to F/R pin input www.onsemi.com 14 If the motor rotates in reverse against F/R pin input 120 energization is maintained forcibly LV8139JA Functional Description Basic operation of 120-degree Sine wave current-carrying switching At startup, this IC starts at 120-degree current-carrying. The current-carrying is switched to sine wave when the 3-Hall FG frequency is 5.15Hz (typ) or above and the rising edge of the IN2 signal has been detected twice in succession. the Hall signal input sequence Concerning This IC controls the motor rotation direction commands and Hall signal input sequence in order to set the lead angle. If the motor rotation direction commands and Hall signal input sequence do not conform to what is shown on the timing chart, the motor is driven by 120-degree current-carrying. Shown below are two Hall signal input sequences. Sequence 1 : When the Hall signal has been input with the following logic IN1 IN2 IN3 H L H H L L H H L L H L L H H L L H H L L When F/R pin input is high 120-degree current-carrying When F/R pin input is low 180-degree current-carrying Sequence 2 : When the Hall signal has been input with the following logic IN1 IN2 IN3 H L H L L H L H H L H L H H L When F/R pin input is high 180-degree current-carrying When F/R pin input is low 120-degree current-carrying CTL pin input a) Power-saving mode VCTL VIL (0.95V : typ) LIN1 to LIN3 and HIN1 to HIN3 outputs all set to low ICC = 0, HB pin = OFF The power consumption of the IC can now be set to 0, and the power consumption of the Hall element connected to the HB pin and the output block can also be set to 0. The CTL pin is pulled down by 170k (120-degree mode) : Typ, 131.6k (sine wave mode) : typ inside the IC. Caution is required when the control input voltage input is subjected to resistance division, for example. b) Standby mode While stopped: VIL VCTL VIM1 (2.33V: typ); while running: VIL VCTL VIM2 (2.1V: typ) The UIN1 to 3 outputs are set to low, and the bootstrap charge pulse (pulse width: 2.5s: design target) is output to the LIN1 to 3 outputs in preparation for drive start. Bootstrap capacitor initial charging mode When the mode is switched from the power-saving mode to the standby mode and then to the drive mode, the IC enters the bootstrap capacitor charging mode (HIN1, HIN2, HIN3 pins = L LIN1, LIN2, LIN3 pins = H 4.55ms typ) in order to charge the bootstrap capacitor. * When the PWM oscillation frequency setting is 17kHz, the maximum duty ratio in the 120-degree current carrying mode is 88% (typ). c) Drive mode At drive start: VIM1 VCTL 7V; during drive: VIM2 VCTL 7V (VIH 4.7V: typ) The motor is driven at the PWM duty ratio that corresponds to VCTL. When VCTL is increased, the PWM duty ratio increases, and the maximum duty ratio is established at “VIH.” d) Test mode 8.5V VCTL VCC When the CTL pin voltage is 8V or higher, the IC enters the test mode, and the motor is driven at the 120-degree current-carrying and maximum duty* ratio. www.onsemi.com 15 LV8139JA Drive phase adjustment During 180-degree current-carrying drive, any lead angle from 0 to 58 degrees can be set using the ADP1 pin voltage (lead angle control). This setting can be adjusted in 32 steps (in 1.875-degree increments) from 0 to 58 degrees using the ADP1 pin voltage, and it is updated every Hall signal cycle (it is sampled at the rising edge of the IN3 input and updated at its falling edge). A number of lead angle adjustments proportionate to the CTL pin voltage can be undertaken by adjusting the resistance levels of resistors connected to the ADP1 pin, ADP2 pin and DPL pin. When these pins are not going to be used, reference must be made to section 4.5, and the pins must not be used in the open status. Furthermore, a resistance of 47k or more must be used for the resistor (RADP2) that is connected to the ADP2 pin. 1. The slopes of VCTL and VADP1 can be adjusted by setting the resistance level of the resistor (RADP1) connected to ADP1 (pin 15). RDPL1 33k 32 steps Lead Angle[°] ADP2 ADP1(RADP1=22k) VADP2H 2.34V 0V 0° VIM2(typ:2.1V) VIH(typ:4.6V) IADP2 47k ADP1 VREG5 DPL ADP1(RADP1=47k) 58° VREG ADP2 VADP1, VADP2[V] IADP1 RADP2 RADP1 VADP2=(VCTL-VIM2)×(2.5/(VIH-VIM2)) =(VCTL-2.1V)×(2.5/(4.6V-2.1V)) IADP2=VADP2/RADP2 IADP1=IADPR×IADP2 VADP1=IADP1×RADP1 VCTL[V] 2. The ADP2 pin rise can be halted (a limit on the lead angle adjustment can be set by means of the CTL voltage) by setting DPL (pin 10). 0° 2.46V ADP1(RADP1=47k) 1.23V 1.17V ADP2 ADP1(RADP1=22k) 0V VIM2(typ:2.1V) 3.33V DPL RDPL1 33k DPLLIM 32 steps Lead Angle[°] VREG5 VIH(typ:4.6V) IADP2 IADP1 RDPL2 33k 47k RADP2 RADP1 VADP2=(VCTL-VIM2)×(2.5/(VIH-VIM2)) IADP2=VADP2/RADP2 IADP1=IADPR×IADP2 VADP1=IADP1×RADP1 DPLLIM=VDPL×1.36 VCTL[V] 3. The offset and slope can be adjusted as desired by setting RADP1 and RADP12 of ADP1 (pin 15). (It is also possible to set a limit on the lead angle ADP2 58° VREG ADP1 VADP1, VADP2[V] adjustment by means of the CTL voltage by setting DPL.) RDPL1 33k 32 steps Lead Angle[°] VADP2H ADP2 47k 0V VIM2(typ:2.1V) VIH(typ:4.6V) 4. When the lead angle is not adjusted ADP1 pin: shorted to ground; ADP2 pin and DPL pin: pulled down to ground using the resistors IADP1 RADP2 VREG5 RADP12 RADP1 VADP2=(VCTL-VIM2)×(2.5/(VIH-VIM2)) IADP2=VADP2/RADP2 IADP1=IADPR×IADP2 VADP1=((RADP1×RADP12)/(RADP1+RADP12))×IADP1 +(RADP1/(RADP1+RADP12))×VREG 0.86V 0° IADP2 ADP1 4.17V DPL ADP1 (RADP1=47k,RADP12=220k) VREG5 ADP1 (RADP1=33k,RADP1=33k) 58° VREG ADP2 VADP1, VADP2[V] VCTL[V] 5. When the lead angle is not adjusted by means of the CTL pin voltage (for use with a fixed lead angle) ADP1 pin: lead angle setting by resistance division from VREG5; ADP2 pin and DPL pin: pulled down to ground by the resistors www.onsemi.com 16 LV8139JA Description of LV8139 1. Current Limiter Circuit The current limiter circuit limits the output current peak value to a level determined by the equation I = VRF/Rf (where VRF = 0.25V typ, Rf is the value of the current detection resistor). The current limiter operates by reducing the HIN output on duty to suppress the current. The current limiter circuit detects the reverse recovery current of the diode due to PWM operation. To assure that the current limiting function does not malfunction, its operation has a delay of approx. 1s. If the motor coils resistance or a low inductance, current fluctuation at startup (when there is no back electromotive force in the motor) will be rapid. The delay in this circuit means that at such times the current limiter circuit may operate at a point well above the set current. Application must take this increase in the current due to the delay into account when the current limiter value is set. 2. Power Saving Circuit (CTL pin) This IC goes into the power saving mode that stops operation of all the circuits to reduce the power consumption. If the HB pin is used for the Hall element bias and the output block, the current consumption in the power-saving mode is zero. 3. Hall Input Signal Signals with an amplitude in excess of the hysteresis is required for the Hall inputs. However, considering the influence of noise and phase displacement, an amplitude of over 100mV is desirable. If noise disrupts the output waveform, this must be prevented by inserting capacitors or other devices across the Hall inputs. The Hall inputs are used by the circuit inside the IC as decision signals so if noise enters, a malfunction occurs in the operation. Although the circuit is designed to tolerate a certain amount of noise, care is required. Furthermore, when the Hall signal amplitude has changed as a result of a change in temperature, the drive phase may possibly shift due to the Hall amplifier hysteresis. It is the user who is responsible for giving due consideration to this aspect. Use of a Hall IC is recommended unless there is a reason not to use one. If all three phases of the Hall input signal go to the same input state (HHH or LLL), all the HIN/LIN outputs are set to low. If the outputs from a Hall IC are used, fix one side of the inputs (either the “+” or “−” side) at a voltage within the common-mode input voltage range (0.3V to VREG–1.8V), and use the other input side as an input over the 0V to VREG range. 4. Constraint Protection Circuit A constraint protection circuit is incorporated in order to protect the output elements and motor when the motor is constrained. The circuit is activated when the Hall signal is not switched for a specific period of time when the motor is in operation. The counter is reset each time the motor rotates 360 degrees in terms of the electrical angle. All the HIN and LIN outputs are set to the low level when the constraint protection circuit is in operation. This time is determined by the capacitance of the capacitor connected to the CSD pin. Oscillation time of CSD pin (1 pulse) T = (VOH-VOL)/ICHG1 C (F) + (VOH-VOL)/ICHG2 C (F) Constraint protection detection time T1 (s) = T 256 (count) Constraint protection time T2 (s) = T 2816 (count) When a 0.022F capacitor is attached, T = 8.36ms, T1 = 2.14s and T2 = 23.54s are established as the typical ratings. After the motor has been constrained, the constraint protection state is established at 2.14 (s), and then after 23.54 (s) has elapsed, the constraint protection circuit is reset automatically. A time that provides some leeway in the motor start time that factors in any fluctuations must be selected as the setting. Conditions for releasing the constraint protection state other than by automatic resetting: When CTL pin voltage VIM2 input protection release and CSD count reset When the low level is detected on the TH pin protection release and CSD count reset When FR has been switched protection release and CSD count reset When TSD protection is detected CSD count stop 5. Power Supply Stabilization Since this IC adopts a switching drive technique, the power-supply line level can be disrupted easily. Thus capacitors large enough to stabilize the power supply voltage must be inserted between the VCC pins and ground. If the electrolytic capacitors cannot be connected close to their corresponding pins, ceramic capacitors of about 0.1F must be connected near these pins. If diodes are inserted in the power-supply line to prevent destruction of the device when the power supply is connected with reverse polarity, the power supply line levels will be even more easily disrupted, and even larger capacitors must be used. www.onsemi.com 17 LV8139JA 6. VREG Stabilization Connect a capacitor with a capacitance of 0.1F or more between VREG5 and ground in order to stabilize the VREG voltage that is the power supply of the control circuit. The ground lead of that capacitor must be located as close as possible to the control system ground (SGND) of the IC. 7. Forward/Reverse Switching (F/R pin) Switching between forward rotation and reverse rotation must not be undertaken while the motor is running. 8. TH Pin The TH pin must normally be pulled up to VREG5 for use. When this pin has been set to low, all the HIN/LIN outputs are set to low. When reset is initiated, the bootstrap initial charging mode is established. The drive phase is shifted. The motor has been suddenly accelerated. The output duty ratio has been decreased sharply while the motor is running. If the output duty ratio has been decreased sharply, it is highly likely that current will return to the motor power supply. The extent to which the motor supply voltage increases differs depending on the size of the capacitors used in the product that incorporates the motor, the size of the capacitor inserted between the motor power supply and ground on the motor circuit board and the motor used; as such, it is the user who is responsible for giving due consideration to this aspect. It is necessary to take remedial action such as increasing the capacitance of the capacitors or reducing the speed at which the duty ratio will be reduced when the motor supply voltage rises to ensure that the maximum withstand voltage of the element used for output is not exceeded. 9. FAULT Pin The FAULT pin must normally be pulled up to VREG5 for use. When this pin has been set to low, all the HIN/LIN outputs are set to low. When reset is initiated, the bootstrap initial charging mode is established. All the outputs are set to low. In addition, the FG1/FG3 output goes off, too. When reset is initiated, the bootstrap initial charging mode is established. 10. PWM Frequency Setting fCPWM 1/ (1.7CR) Components with good temperature characteristics must be used. An oscillation frequency of about 17kHz is obtained when a 2200pF capacitor and 15k resistor are used. If the PWM frequency is too low, switching noise will be heard from the motor; conversely, if it is too high, the output power loss will increase. For this reason, a frequency between 15kHz and 30kHz or so is desirable. The capacitor ground must be connected as close as possible to the control system ground (SGND pin) of the IC to minimize the effects of the outputs. If there are no fluctuations in the capacitance or resistance of the external capacitors or resistors and only the IC fluctuations are to be considered, an actual capability of 3% can be expected. 11.Concerning the power-raising operation This IC provides sine wave PWM drive so it performs operations similar to synchronous rectification. These operations are such that current is sometimes returned to the motor power supply side depending on the conditions of use. For instance, this may happen when: www.onsemi.com 18 LV8139JA ON Semiconductor and the ON logo are registered trademarks of Semiconductor Components Industries, LLC (SCILLC) or its subsidiaries in the United States and/or other countries. SCILLC owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent-Marking.pdf . SCILLC reserves the right to make changes without further notice to any products herein. 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