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NCP5181DR2G

onsemi · Gate Drivers · SOIC-8

NCP5181DR2G from onsemi, in a SOIC-8. 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 IN_HI input Logic input for the high-side driver, output in phase with the input; compatible with 3.3 V and 5 V logic, accepts up to VCC swing, with VIL max 0.8 V and VIH min 2.3 V.
2 IN_LO input Logic input for the low-side driver, output in phase with the input; compatible with 3.3 V and 5 V logic, accepts up to VCC swing, with VIL max 0.8 V and VIH min 2.3 V.
3 GND power_in Ground reference for the device.
4 DRV_LO output Low-side gate drive output, rated for 1.4 A source and 2.2 A sink pulsed short-circuit current and driven between -0.3 V and VCC+0.3 V.
5 VCC power_in Low-side and main power supply, absolute maximum -0.3 V to 20 V, with gate drive supply range 10 V to 20 V.
6 BRIDGE power_in Bootstrap return or high-side floating supply return, rated -1 V to 600 V, with VBOOT-VBRIDGE limited to 0 V to 20 V.
7 DRV_HI output High-side gate drive output, limited to VBRIDGE-0.3 V to VBOOT+0.3 V.
8 VBOOT power_in Bootstrap power supply for the high-side driver, rated -1 V to 620 V, with VBOOT-VBRIDGE limited to 0 V to 20 V.

Key specifications

Parameter Value
Manufacturer onsemi
Package SOIC-8
Category Motor Driver ICs
Pins 8

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
Output Resistor Source (Typical Value @ 25°C Only) ROH 5 12 Typical Value @ 25°C Only 4
Output Resistor Sink (Typical Value @ 25°C Only) ROL 2 8 Typical Value @ 25°C Only 4
Turn-on Propagation Delay tON 100 170 ns Vbridge = 0 V 4
Turn-off Propagation Delay tOFF 100 170 ns Vbridge = 0 V or 50 V (Note 2) 4
Output Voltage Risetime tr 40 60 ns from 10% to 90% @ VCC = 15 V with 1 nF Load 4
Output Voltage Falling Edge tf 20 40 ns from 90% to 10% @ VCC = 15 V with 1 nF Load 4
Propagation Delay Matching between the High Side and the Low Side t 20 35 ns @ 25°C (Note 3) 4
Minimum Input Pulse Width that Changes the Output tPW 100 ns 4
Low Level Input Voltage Threshold VIN 0.8 V 4
High Level Input Voltage Threshold VIN 2.3 V 4
VCC UV Startup Voltage Threshold VCC_stup 7.9 8.9 9.8 V 4
VCC UV Shutdown Voltage Threshold VCC_shtdwn 7.3 8.2 9 V 4
Hysteresis on VCC VCC_hyst 0.3 0.7 V 4
Vboot Startup Voltage Threshold Reference to Bridge Pin Vboot_stup 7.9 8.9 9.8 V Reference to Bridge Pin (Vboot_stup = Vboot − Vbridge) 4
Vboot UV Shutdown Voltage Threshold Vboot_shtdwn 7.3 8.2 9 V 4
Hysteresis on Vboot Vboot_shtdwn 0.3 0.7 V 4
Leakage Current on High Voltage Pins to GND IHV_LEAK 0.5 40 A VBOOT = VBRIDGE = DRV_HI = 600 V 4
Consumption in Active Mode ICC1 4.5 6.5 mA VCC = Vboot, fsw = 100 kHz and 1 nF Load on Both Driver Outputs 4
Consumption in Inhibition Mode ICC2 250 400 A VCC = Vboot 4
Main Power Supply Voltage VCC -0.3 20 V 3
High Voltage BOOT Pin VBOOT -1 620 V 3
High Voltage BRIDGE Pin VBRIDGE -1 600 V 3
VHV: Floating Supply Voltage VBOOT − VBRIDGE 0 20 V 3
Allowable Output Slew Rate dVBRIDGE/dt 50 V/ns 3
Inputs IN_HI, IN_LO VIN_XX -1 V Upper limit printed as VCC+0.3 V (not numeric) 3
SO-8 Thermal Resistance, Junction-to-Air RJA 178 °C/W SO-8 package 3
Maximum Operating Junction Temperature TJ_max 150 °C 3
Gate Drive Supply Range VCC 10 20 V Gate drive supply range as stated in Features 1
Operating Ambient Temperature TA -40 125 °C Electrical characteristics range (−40°C < TA < 125°C) 4

CAD (KiCad official)

  • Symbol: NCP5181DR2G
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: ncp5181dr2g-etched.step / ncp5181dr2g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ncp5181dr2g.step / ncp5181dr2g.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (14 pp, sha256 bf78f6c4fa9021a8, retrieved 2026-10-19, tier: manufacturer)
  • 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