# AUIRB24427STR

**Infineon Technologies** · Gate Drive ICs · SOIC-8

AUIRB24427STR 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 | EN | input | Enable pin; the recommended logic enable voltage is 0 to 5 V, with an absolute maximum range of -0.3 V to 5.5 V. |
| 2 | INA | input | Logic input for gate driver output OUTA, in phase with it; the recommended logic input voltage is 0 to 5 V, with an absolute maximum range of -0.3 V to 5.5 V. |
| 3 | COM | power_in | Ground reference (COM) for the device; all voltage parameters are referenced to COM. |
| 4 | INB | input | Logic input for gate driver output OUTB, in phase with it; the recommended logic input voltage is 0 to 5 V, with an absolute maximum range of -0.3 V to 5.5 V. |
| 5 | OUTB | output | Gate drive output B; under recommended conditions the output voltage ranges from 0 V to VCC. |
| 6 | VCC | power_in | Supply voltage; the recommended range is 5 to 20 V, with an absolute maximum of 24 V and an extended supply range of 12.5 V to 24 V stated in the features. |
| 7 | OUTA | output | Gate drive output A; under recommended conditions the output voltage ranges from 0 V to VCC. |
| 8 | NC | unconnected | No connection. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Infineon Technologies |
| Package | SOIC-8 |
| Category | Power Management 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 |
|---|---|---|---|---|---|---|---|
| Fixed supply voltage | Vcc | -0.3 |  | 24 | V |  | 2 |
| Output voltage | VO | -0.3 |  | 24 | V |  | 2 |
| Logic input voltage | VIN | -0.3 |  | 5.5 | V |  | 2 |
| Logic enable voltage | VEN | -0.3 |  | 5.5 | V |  | 2 |
| Thermal resistance, junction to case | RthJc |  |  | 4 | °C/W |  | 2 |
| Junction temperature | TJ |  |  | 150 | °C |  | 2 |
| Storage temperature | TS | -55 |  | 150 | °C |  | 2 |
| Lead temperature (soldering, 10 seconds) | TL |  |  | 300 | °C |  | 2 |
| Fixed supply voltage | Vcc | 5 |  | 20 | V |  | 2 |
| Output voltage | VO | 0 |  |  | V | Max printed as VCC | 2 |
| Logic input voltage | VIN | 0 |  | 5 | V |  | 2 |
| Logic enable voltage | VEN | 0 |  | 5 | V |  | 2 |
| Ambient temperature | TA | -40 |  | 125 | °C |  | 2 |
| External gate resistance | Rg | 2.5 |  |  |  |  | 2 |
| VCC to COM bypass capacitance, X7R dielectric | CBP | 1 |  |  | µF | X7R dielectric | 2 |
| Logic '0' input voltage | VIL |  |  | 0.8 | V |  | 3 |
| Logic '1' input voltage | VIH | 2.5 |  |  | V |  | 3 |
| Input voltage hysteresis | VHYS-IN |  |  | 0.8 | V |  | 3 |
| Logic '0' enable voltage | VENL |  |  | 0.8 | V |  | 3 |
| Logic '1' enable voltage | VENH | 2.5 |  |  | V |  | 3 |
| Enable voltage hysteresis | VHYS-EN |  |  | 0.8 | V |  | 3 |
| Source output resistance | ROH+25 |  |  | 450 | mΩ | Ta=+25C | 3 |
| Sink output resistance | ROL+25 |  |  | 450 | mΩ | Ta=+25C | 3 |
| Source output resistance | ROH+125 |  |  | 650 | mΩ | Ta=+125C | 3 |
| Sink output resistance | ROL+125 |  |  | 650 | mΩ | Ta=+125C | 3 |
| Output high level voltage (Vcc-Vo) | VOH+25 |  |  | 450 | mV | Ta=+25C, Iout=100mA | 3 |
| Output low level voltage (Vo) | VOL+25 |  |  | 450 | mV | Ta=+25C, Iout=100mA | 3 |
| Output high level voltage (Vcc-Vo) | VOH+125 |  |  | 650 | mV | Ta=+125C, Iout=100mA | 3 |
| Output low level voltage (Vo) | VOL+125 |  |  | 650 | mV | Ta=+125C, Iout=100mA | 3 |
| Logic '1' input bias current | IIN+ |  | 25 | 50 | µA | VIN=5V, VCC=15V | 3 |
| Logic '0' input bias current | IIN- |  |  | 1 | µA | VIN=0V, VCC=15V | 3 |
| Quiescent supply current | IQB | 0.5 | 1.2 | 2.5 | mA | VCC=15V, INA & INB not switching | 3 |
| Vcc supply undervoltage hysteresis | VCCUVHYS |  |  | 1.5 | V |  | 3 |
| Vcc supply undervoltage turn on threshold | VCCUV+ | 10.5 | 11.5 | 12.6 | V |  | 3 |
| Vcc supply undervoltage turn off threshold | VCCUV- | 9 | 10 | 11 | V |  | 3 |
| Output high short circuit pulsed current | IO+ | 6 |  |  | A | VCC=15V, PW<10us | 3 |
| Turn-on propagation delay | TON |  |  | 40 | ns | CBP=10uF | 4 |
| Turn-off propagation delay | TOFF |  |  | 55 | ns | CBP=10uF | 4 |
| Enable turn-on propagation delay | TON-EN |  |  | 40 | ns | CBP=10uF | 4 |
| Enable turn-off propagation delay | TOFF-EN |  |  | 55 | ns | CBP=10uF | 4 |
| Turn-on rise time | tr |  |  | 33 | ns | CBP=10uF | 4 |
| Turn-off fall time | tf |  |  | 33 | ns | CBP=10uF | 4 |

## CAD (KiCad official)

- Symbol: `AUIRB24427STR`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `auirb24427str-etched.step` / `auirb24427str-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `auirb24427str.step` / `auirb24427str.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Infineon Technologies datasheet](docs/auirb24427str-datasheet.pdf) (20 pp, sha256 `86c21c6a22aeccee`, retrieved 2026-10-30, 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](docs/auirb24427str-datasheet.pdf)