# IR2127STRPBF

**Infineon Technologies** · Gate Drivers · SOIC-8

IR2127STRPBF 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 | VCC | power_in | Logic and gate drive supply; recommended 10 to 20V, absolute maximum 25V. |
| 2 | IN | input | Logic input for gate driver output (HO), in phase with HO for IR2127/IR21271; 3.3V, 5V and 15V logic compatible, 0 to VCC. |
| 3 | FAULT | output | Open-drain, active-low output that indicates an over-current shutdown has occurred. |
| 4 | COM | power_in | Logic ground; all voltage ratings are referenced to COM. |
| 5 | VS | power_in | High side floating supply return; offset operational up to 600V. |
| 6 | CS | input | Current sense input to the current sense comparator; recommended VS to VS + 5V, threshold 180 to 320mV for IR2127. |
| 7 | HO | output | High side gate drive output for the N-channel MOSFET or IGBT, swinging between VS and VB. |
| 8 | VB | power_in | High side floating supply; absolute maximum 625V, recommended VS + 12 to VS + 20V for IR2127. |

## 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 |
|---|---|---|---|---|---|---|---|
| High Side Floating Supply Voltage | VB | -0.3 |  | 625 | V |  | 2 |
| Logic Supply Voltage | VCC | -0.3 |  | 25 | V |  | 2 |
| Logic Input Voltage | VIN | -0.3 |  |  | V |  | 2 |
| FAULT Output Voltage | VFLT | -0.3 |  |  | V |  | 2 |
| Allowable Offset Supply Voltage Transient | dVs/dt |  |  | 50 | V/ns |  | 2 |
| Package Power Dissipation | PD |  |  | 0.625 | W | TA ≤ +25C, 8 Lead SOIC | 2 |
| Thermal Resistance, Junction to Ambient | RthJA |  |  | 200 | C/W | 8 Lead SOIC | 2 |
| Junction Temperature | TJ |  |  | 150 | C |  | 2 |
| Storage Temperature | TS | -55 |  | 150 | C |  | 2 |
| Lead Temperature (Soldering, 10 seconds) | TL |  |  | 300 | C | Soldering, 10 seconds | 2 |
| Logic Supply Voltage | VCC | 10 |  | 20 | V |  | 2 |
| Logic Input Voltage | VIN | 0 |  |  | V |  | 2 |
| FAULT Output Voltage | VFLT | 0 |  |  | V |  | 2 |
| High Side Floating Offset Voltage | VS |  |  | 600 | V |  | 2 |
| Ambient Temperature | TA | -40 |  | 125 | C |  | 2 |
| Logic 1 Input Voltage (IR2127/IR21271) | VIH | 3 |  |  | V |  | 3 |
| Logic 0 Input Voltage (IR2127/IR21271) | VIL |  |  | 0.8 | V | VCC = 10V to 20V, VIN = 0V or 5V | 3 |
| CS Input Positive Going Threshold (IR2127/IR2128) | VCSTH+ | 180 | 250 | 320 | mV |  | 3 |
| High Level Output Voltage, VBIAS - VO | VOH |  |  | 100 | mV | IO = 0A | 3 |
| Low Level Output Voltage, VO | VOL |  |  | 100 | mV | IO = 0A | 3 |
| Offset Supply Leakage Current | ILK |  |  | 50 | uA | VB = VS = 600V | 3 |
| Quiescent VBS Supply Current | IQBS |  | 200 | 400 | uA |  | 3 |
| Quiescent VCC Supply Current | IQCC |  | 60 | 120 | uA |  | 3 |
| Logic 1 Input Bias Current | IIN+ |  | 7 | 15 | uA | VIN = 5V | 3 |
| Logic 0 Input Bias Current | IIN- |  |  | 1 | uA | VIN = 0V | 3 |
| High CS Bias Current | ICS+ |  |  | 1 | uA | VCS = 3V | 3 |
| VBS Supply Undervoltage Positive Going Threshold (IR2127/IR2128) | VBSUV+ | 8.8 | 10.3 | 11.8 | V |  | 3 |
| VBS Supply Undervoltage Negative Going Threshold (IR2127/IR2128) | VBSUV- | 7.5 | 9 | 10.6 | V |  | 3 |
| Output High Short Circuit Pulsed Current | IO+ | 200 | 250 |  | mA | VO = 0V, VIN = 5V PW ≤ 10 s | 3 |
| Output Low Short Circuit Pulsed Current | IO- | 420 | 500 |  | mA | VO = 15V, VIN = 0V PW ≤ 10 s | 3 |
| Turn-On Propagation Delay | ton |  | 200 | 250 | ns | VS = 0V | 3 |
| Turn-Off Propagation Delay | toff |  | 150 | 200 | ns | VS = 600V | 3 |
| Turn-On Rise Time | tr |  | 80 | 130 | ns |  | 3 |
| Turn-Off Fall Time | tf |  | 40 | 65 | ns |  | 3 |
| Start-Up Blanking Time | tbl | 500 | 700 | 900 | ns |  | 3 |
| CS Shutdown Propagation Delay | tcs |  | 240 | 360 | ns |  | 3 |
| CS to FAULT Pull-Up Propagation Delay | tflt |  | 340 | 510 | ns |  | 3 |

## CAD (KiCad official)

- Symbol: `IR2127STRPBF`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `ir2127strpbf-etched.step` / `ir2127strpbf-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ir2127strpbf.step` / `ir2127strpbf.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Infineon Technologies datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588903822370476032) (16 pp, sha256 `7a1a03dbfe906ade`, retrieved 2026-10-18, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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/ir2127strpbf-datasheet.pdf)