component
IR2181STRPBF
Public Made by Adomby adom
Infineon Technologies Gate Drivers, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownIR2181STRPBF
Infineon Technologies · Gate Drivers · SOIC-8
IR2181STRPBF from Infineon Technologies, 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 | HIN | input | Logic input for the high side gate driver output (HO), in phase, compatible with 3.3V and 5V logic with VIH min 2.7 V and VIL max 0.8 V, and internally clamped with a 5.2V zener diode. |
| 2 | LIN | input | Logic input for the low side gate driver output (LO), in phase, compatible with 3.3V and 5V logic with VIH min 2.7 V and VIL max 0.8 V, and internally clamped with a 5.2V zener diode. |
| 3 | COM | power_in | Low side return and reference for all voltage parameters (absolute maximum ratings are referenced to COM). |
| 4 | LO | output | Low side gate drive output, rated for pulsed source current of 1.4 A min and sink current of 1.8 A min (PW ≤ 10 µs), with VLO between -0.3 V and VCC + 0.3 V. |
| 5 | VCC | power_in | Low side and logic fixed supply, recommended 10 V to 20 V (absolute maximum -0.3 V to 25 V). |
| 6 | VS | power_in | High side floating supply return, with recommended operation up to 600 V and offset VB - 25 V to VB + 0.3 V (absolute), and dVS/dt limited to 50 V/ns. |
| 7 | HO | output | High side gate drive output, with VHO between VS - 0.3 V and VB + 0.3 V. |
| 8 | VB | power_in | High side floating supply, recommended VS + 10 V to VS + 20 V (absolute maximum -0.3 V to 625 V referenced to COM). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Infineon Technologies |
| 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 |
|---|---|---|---|---|---|---|---|
| VB High side floating absolute voltage | VB | -0.3 | 625 | V | 2 | ||
| Low side and logic fixed supply voltage (absolute maximum) | VCC | -0.3 | 25 | V | 2 | ||
| Allowable offset supply voltage transient | dVS/dt | 50 | V/ns | 2 | |||
| Package power dissipation (8-lead SOIC) | PD | 0.625 | W | TA ≤ +25°C | 2 | ||
| Thermal resistance, junction to ambient (8-lead SOIC) | RthJA | 200 | °C/W | 2 | |||
| Junction temperature | TJ | 150 | °C | 2 | |||
| Storage temperature | TS | -50 | 150 | °C | 2 | ||
| Lead temperature | TL | 300 | °C | soldering, 10 seconds | 2 | ||
| Low side and logic fixed supply voltage (recommended) | VCC | 10 | 20 | V | 2 | ||
| Low side output voltage (recommended) | VLO | 0 | V | 2 | |||
| High side floating supply offset voltage (recommended) | VS | 600 | V | min per Note 1 (not numeric in datasheet) | 2 | ||
| Ambient temperature | TA | -40 | 125 | °C | 2 | ||
| Delay matching, HS & LS turn-on/off | MT | 0 | 35 | ns | VBIAS (VCC, VBS) = 15V, VSS = COM, CL = 1000 pF, TA = 25°C | 3 | |
| Turn-on propagation delay | ton | 180 | 270 | ns | VBIAS (VCC, VBS) = 15V, VSS = COM, CL = 1000 pF, TA = 25°C; VS = 0V | 3 | |
| Turn-off propagation delay | toff | 220 | 330 | ns | VBIAS (VCC, VBS) = 15V, VSS = COM, CL = 1000 pF, TA = 25°C; VS = 0V or 600V | 3 | |
| Turn-on rise time | tr | 40 | 60 | ns | VBIAS (VCC, VBS) = 15V, VSS = COM, CL = 1000 pF, TA = 25°C; VS = 0V | 3 | |
| Turn-off fall time | tf | 20 | 35 | ns | VBIAS (VCC, VBS) = 15V, VSS = COM, CL = 1000 pF, TA = 25°C; VS = 0V | 3 | |
| Logic '1' input voltage (IR2181/IR21814) | VIH | 2.7 | V | VCC = 10V to 20V | 3 | ||
| Logic '0' input voltage (IR2181/IR21814) | VIL | 0.8 | V | VCC = 10V to 20V | 3 | ||
| High level output voltage, VBIAS - VO | VOH | 1.2 | V | IO = 0A | 3 | ||
| Low level output voltage, VO | VOL | 0.1 | V | IO = 0A | 3 | ||
| Offset supply leakage current | ILK | 50 | µA | VB = VS = 600V | 3 | ||
| Quiescent VBS supply current | IQBS | 20 | 60 | 150 | µA | VIN = 0V or 5V | 3 |
| Quiescent VCC supply current | IQCC | 50 | 120 | 240 | µA | VIN = 0V or 5V | 3 |
| Logic '1' input bias current | IIN+ | 25 | 60 | µA | VIN = 5V | 3 | |
| Logic '0' input bias current | IIN- | 1 | µA | VIN = 0V | 3 | ||
| VCC and VBS supply undervoltage positive going threshold | VCCUV+, VBSUV+ | 8 | 8.9 | 9.8 | V | 3 | |
| VCC and VBS supply undervoltage negative going threshold | VCCUV-, VBSUV- | 7.4 | 8.2 | 9 | V | 3 | |
| VCC and VBS supply undervoltage hysteresis | VCCUVH, VBSUVH | 0.3 | 0.7 | V | 3 | ||
| Output high short circuit pulsed current | IO+ | 1.4 | 1.9 | A | VO = 0V, PW ≤ 10 µs | 3 | |
| Output low short circuit pulsed current | IO- | 1.8 | 2.3 | A | VO = 15V, PW ≤ 10 µs | 3 |
CAD (KiCad official)
- Symbol:
IR2181STRPBF - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
ir2181strpbf-etched.step/ir2181strpbf-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ir2181strpbf.step/ir2181strpbf.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Infineon Technologies datasheet (21 pp, sha256
c566e9e337a4884f, retrieved 2026-10-17, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).