# TF2103M-TAH

**TFSS** · Gate Drivers · SOIC-8

TF2103M-TAH from TFSS, 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 low side supply, recommended 10V to 20V, with VCC undervoltage lockout (positive-going threshold 8.0V to 9.8V, typical 8.9V). |
| 2 | HIN | input | Logic input for the high-side gate driver output, in phase with HO; Schmitt-triggered, compatible with 3.3V logic, recommended input 0V to 5V. |
| 3 | LIN* | input | Logic input for the low-side gate driver output, out of phase with LO; Schmitt-triggered, compatible with 3.3V logic, recommended input 0V to 5V. |
| 4 | COM | power_in | Low-side and logic return. |
| 5 | LO | output | Low-side gate drive output, limited to -0.3V to VCC+0.3V, with 290mA source and 600mA sink pulsed current capability. |
| 6 | VS | power_in | High-side floating supply return, with offset supply voltage limited to VB-24V to VB+0.3V and dVS/dt up to 50 V/ns. |
| 7 | HO | output | High-side gate drive output, limited to VS-0.3V to VB+0.3V. |
| 8 | VB | power_in | High-side floating supply, recommended VS+10V to VS+20V, with absolute maximum of -0.3V to +624V. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `TF2103M-TAH`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `tf2103m-tah-etched.step` / `tf2103m-tah-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tf2103m-tah.step` / `tf2103m-tah.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [TFSS datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588906684618321920) (9 pp, sha256 `9823493625fec20d`, retrieved 2026-10-09, 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](docs/tf2103m-tah-datasheet.pdf)