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NCV78702MW0AR2G

Public Made by Adom

by adom

onsemi LED Drivers, QFN-24-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Contents

README

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NCV78702MW0AR2G

onsemi · LED Drivers · QFN-24-EP(4x4)

NCV78702MW0AR2G from onsemi, in a QFN-24-EP(4x4). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 NC unconnected Not connected on the MW0A variant (Table 2 lists NC).
2 VGATE1 output Booster MOSFET gate pre-driver output (medium voltage); the VDRIVE/VGATE1/VGATE2 absolute maximum is 12 V (Table 3, note 6).
3 VGATE2 output Booster MOSFET gate pre-driver output (medium voltage); the VDRIVE/VGATE1/VGATE2 absolute maximum is 12 V (Table 3, note 6).
4 NC unconnected Not connected on the MW0A variant (Table 2 lists NC).
5 NC unconnected Not connected on the MW0A variant (Table 2 lists NC).
6 NC unconnected Not connected on the MW0A variant (Table 2 lists NC).
7 GNDP power_in Power ground for the VGATE gate driver; GND and GNDP must be connected together close to the device.
8 IBSTSENSE1+ input Coil 1 current positive feedback input; input current sense voltage absolute range is -1.0 to 12 V, recommended -0.1 to 1 V.
9 IBSTSENSE1− input Coil 1 current negative feedback input; input current sense voltage absolute range is -1.0 to 12 V, recommended -0.1 to 1 V.
10 IBSTSENSE2+ input Coil 2 current positive feedback input; input current sense voltage absolute range is -1.0 to 12 V, recommended -0.1 to 1 V.
11 IBSTSENSE2− input Coil 2 current negative feedback input; input current sense voltage absolute range is -1.0 to 12 V, recommended -0.1 to 1 V.
12 FSO/ENABLE2 input Fail Save Operating / ENABLE2 input (medium voltage); medium-voltage IO absolute maximum is -0.3 to 6.5 V.
13 SCLK/TST2 input SPI clock input, also TST2 IO (medium voltage); medium-voltage IO absolute maximum is -0.3 to 6.5 V.
14 CSB/SCS input SPI chip select input (chip select bar, medium voltage); medium-voltage IO absolute maximum is -0.3 to 6.5 V.
15 SDI input SPI data input (medium voltage); medium-voltage IO absolute maximum is -0.3 to 6.5 V.
16 SDO output SPI data output, open-drain with pull-up (medium voltage); the R_SDO pull-up is 1 kΩ typical and the medium-voltage IO absolute maximum is -0.3 to 6.5 V.
17 BSTSYNC/TST/TST1 input External clock input for the boost regulator, TM entry and TST1 IO (high voltage); absolute maximum follows the VBB rating of -0.3 to 36 V (Table 3, note 4).
18 ENABLE1 input ENABLE1 input (medium voltage, 5 V tolerant); medium-voltage IO absolute maximum is -0.3 to 6.5 V.
19 VBOOSTDIV input Booster high-voltage feedback input; absolute maximum is -0.3 to 36 V (Table 3, note 4) and the feedback divider ratio must be 34.
20 COMP bidirectional Compensation pin for the boost regulator (low voltage); absolute maximum is -0.3 to 3.6 V (Table 3, note 5).
21 GND power_in Ground for the signal (low power) functions; must be connected to GNDP.
22 VDD power_in 3 V logic supply; recommended range 3.1 V to 3.5 V with absolute maximum -0.3 V to 3.6 V.
23 VDRIVE power_in 10 V gate driver supply (medium voltage) derived from VBB; absolute maximum is -0.3 V to 12 V.
24 VBB power_in Battery supply (high voltage); recommended range 5 V to 30 V with absolute maximum 36 V (40 V for less than 0.5 s).
25 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer onsemi
Package QFN-24-EP(4x4)
Category LED Drivers
Pins 25

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Battery supply voltage VBB -0.3 36 V Note 3: 40 V allowed for limited time < 0.5 s 5
Logic supply voltage VDD -0.3 3.6 V 5
Gate driver supply voltage VDRIVE -0.3 12 V 5
Input current sense voltage IBSTSENSEPx, IBSTSENSENx -1 12 V 5
Medium voltage IO pins IOMV -0.3 6.5 V 5
Storage Temperature TSTRG -50 150 °C Note 9: up to 100 hours; otherwise max 85 °C 5
Electrostatic Discharge, Human Body Model VESD_HBM -2 2 kV Human Body Model 5
Electrostatic Discharge, Charge Device Model VESD_CDM -500 500 V Charge Device Model 5
Battery supply voltage VBB 5 30 V 5
Logic supply voltage VDD 3.1 3.5 V Note 14: VBB > 5 V 5
Medium voltage IO pins IOMV 0 5 V 5
Input current sense voltage IBSTSENSEPx, IBSTSENSENx -0.1 1 V 5
Functional operating junction temperature range TJF -45 155 °C 5
Parametric operating junction temperature range TJP -40 150 °C 5
Thermal Shutdown TSD 165 170 175 °C 6
Thermal Warning TW 155 160 165 °C 6
VDRIVE reg. voltage from VBB (setpoint 1111) VDRV_15 9.7 10.1 10.7 V VDRIVE_VSETPOINT = 1111, Vbb − VDRIVE > 0.5 V, @IDRIVE = 90 mA 6
VDRIVE reg. voltage from VBB (setpoint 0000) VDRV_00 4.8 5 5.3 V VDRIVE_VSETPOINT = 0000, Vbb − VDRIVE > 0.5 V @IDRIVE = 90 mA 6
DC output current consumption VDRV_ILIM 0 90 mA 6
Output current limitation VDRV_BB_IL 90 500 mA 6
VDRIVE UV detection delay VDRV_UV_DL 5 35 s 7
VDD regulator output voltage VDD 3.135 3.465 V Vbb > 5 V 7
Output current limitation VDD_ILIM 60 350 mA 7
POR toggle level on VDD rising POR3V_H 2.55 3.05 V 7
POR toggle level on VDD falling POR3V_L 2.3 2.8 V 7
POR threshold on VBB, VBB rising POR_VBB_H 3.8 4.3 V Applicable only during startup (VBB is rising) 7
VBB range for OTP_FAIL flag during OTP programming VBB_OTP_L 13.2 14.1 15 V 7
System oscillator frequency FOSC10M 7 10 13 MHz 7
Booster overvoltage shutdown BST_OV_127 63.8 65.85 67.9 V BOOST_OVERVOLTSD_THR = 1111111, DC level 7
Booster overvoltage shutdown BST_OV_022 11 11.5 12 V BOOST_OVERVOLTSD_THR = 0010110, DC level 7
Booster overvoltage re-activation BST_RA_3 -1.9 -1.5 -1.1 V BOOST_OV_REACT = 11, V to the Vboost reg. overvoltage protection, DC level 8
Booster undervoltage protection (external divider fail state detection) BST_EA_UV 3.45 3.95 4.45 V 8
Booster regulation level BST_REG_125 62.8 64.8 66.8 V BOOST_VSETPOINT = 1111101, DC level 8
Booster regulation level BST_REG_022 10.8 11.5 12.2 V BOOST_VSETPOINT = 0010110, DC level 8
Transconductance gain of Error amplifier BST_EA_GM3 63 90 117 S BOOST_OTA_GAIN = 11, seen from VBOOST, DC value 8
Transconductance gain of Error amplifier BST_EA_GM2 42 60 78 S BOOST_OTA_GAIN = 10, seen from VBOOST, DC value 8
Transconductance gain of Error amplifier BST_EA_GM1 21 30 39 S BOOST_OTA_GAIN = 01, seen from VBOOST, DC value 8
Output leakage current in tri-state EA_ILEAK -1 1 A Output in tri-state (EA_GM0) 8
EA max output voltage_3 COMP_CLH_3 2.1 2.26 V BOOST_SLPCTRL[2]=1, OR of all BOOST_VLIMTHx[1]=1 8
Booster VBOOSTDIV pin input pull up current BST_EA_DIV_INI 0.4 0.8 1.4 A Pull current source towards to VDD voltage 8
Booster minimum OFF time BST_TOFF_7 780 1200 1620 ns VBOOST_TOFF_SET = 111, time from VGATE below VBOOST_VGATE_THR 9
Booster minimum OFF time BST_TOFF_6 300 460 620 ns VBOOST_TOFF_SET = 110, time from VGATE below VBOOST_VGATE_THR 9
Booster minimum OFF time BST_TOFF_5 260 400 540 ns VBOOST_TOFF_SET = 101, time from VGATE below VBOOST_VGATE_THR 9
Booster minimum OFF time BST_TOFF_4 220 340 460 ns VBOOST_TOFF_SET = 100, time from VGATE below VBOOST_VGATE_THR 9
Booster minimum OFF time BST_TOFF_3 180 280 380 ns VBOOST_TOFF_SET = 011, time from VGATE below VBOOST_VGATE_THR 9
Booster minimum OFF time BST_TOFF_2 140 220 300 ns VBOOST_TOFF_SET = 010, time from VGATE below VBOOST_VGATE_THR 9
Booster minimum OFF time BST_TOFF_1 100 160 220 ns VBOOST_TOFF_SET = 001, time from VGATE below VBOOST_VGATE_THR 9
Booster minimum OFF time BST_TOFF_0 60 100 140 ns VBOOST_TOFF_SET = 000, time from VGATE below VBOOST_VGATE_THR 9
Booster minimum ON time BST_TON_7 330 530 730 ns VBOOST_TON_SET = 111, time from internal signal for VGATE drive 9
Booster minimum ON time BST_TON_6 300 480 660 ns VBOOST_TON_SET = 110, time from internal signal for VGATE drive 9
Booster minimum ON time BST_TON_5 270 430 590 ns VBOOST_TON_SET = 101, time from internal signal for VGATE drive 9
Booster minimum ON time BST_TON_4 240 380 520 ns VBOOST_TON_SET = 100, time from internal signal for VGATE drive 9
Booster minimum ON time BST_TON_3 210 330 450 ns VBOOST_TON_SET = 011, time from internal signal for VGATE drive 9
Booster minimum ON time BST_TON_2 180 280 380 ns VBOOST_TON_SET = 010, time from internal signal for VGATE drive 9
Booster minimum ON time BST_TON_1 150 230 310 ns VBOOST_TON_SET = 001, time from internal signal for VGATE drive 9
Booster minimum ON time BST_TON_0 120 180 240 ns VBOOST_TON_SET = 000, time from internal signal for VGATE drive 9
Current comparator for Imax detection BST_VLIMTHx_3 95 100 105 mV BOOST_VLIMTHx = 11, DC level of threshold voltage 10
Current comparator for Imax detection BST_VLIMTHx_2 75 80 85 mV BOOST_VLIMTHx = 10, DC level of threshold voltage 10
Current comparator for Imax detection BST_VLIMTHx_1 57 62.5 67 mV BOOST_VLIMTHx = 01, DC level of threshold voltage 10
Current comparator for Imax detection BST_VLIMTHx_0 45 50 55 mV BOOST_VLIMTHx = 00, DC level of threshold voltage 10

CAD (KiCad official)

  • Symbol: NCV78702MW0AR2G
  • Footprint: Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.6x2.6mm
  • 3D model: QFN-24-EP(4x4) (KiCad packages3D, STEP)
  • 3D model files: ncv78702mw0ar2g-etched.step / ncv78702mw0ar2g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ncv78702mw0ar2g.step / ncv78702mw0ar2g.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: onsemi datasheet (34 pp, sha256 2a90efc317e1e522, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF