# LM5110-3MX

**Texas Instruments** · Gate Drivers · SOIC-8

LM5110-3MX from Texas Instruments, 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_REF | power_in | Ground reference for control inputs; connect to VEE for positive-only output swing or to system logic ground for positive and negative output swing. |
| 2 | IN_A | input | TTL-compatible 'A' side control input. |
| 3 | VEE | power_in | Power ground of driver outputs; connect to power ground or negative gate drive supply. |
| 4 | IN_B | input | TTL-compatible 'B' side control input. |
| 5 | OUT_B | output | Output for 'B' side driver, capable of sourcing 3A and sinking 5A, with voltage swing from VCC to VEE. |
| 6 | VCC | power_in | Positive supply; locally decouple to VEE and IN_REF. |
| 7 | OUT_A | output | Output for 'A' side driver, capable of sourcing 3A and sinking 5A, with voltage swing from VCC to VEE. |
| 8 | nSHDN | input | TTL-compatible shutdown input pin; pull below 1.5V to activate low power shutdown mode. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `LM5110-3MX`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `lm5110-3mx-etched.step` / `lm5110-3mx-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm5110-3mx.step` / `lm5110-3mx.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/lm5110) (32 pp, sha256 `b0147a69dd2dbf5d`, retrieved 2026-10-05, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (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/lm5110-3mx-datasheet.pdf)