# LM5111-1MY

**Texas Instruments** · Gate Drivers · MSOP-8-EP

LM5111-1MY from Texas Instruments, in a MSOP-8-EP. 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 | NC | unconnected | No internal connection on this pin; the datasheet lists it as No Connection. |
| 2 | IN_A | input | 'A' side control input with TTL-compatible thresholds that controls the OUT_A driver. |
| 3 | VEE | power_in | Ground reference for both inputs and outputs; connect to power ground. |
| 4 | IN_B | input | 'B' side control input with TTL-compatible thresholds that controls the OUT_B driver. |
| 5 | OUT_B | output | Output of the 'B' side driver, swinging from VCC to VEE, capable of sourcing 3 A and sinking 5 A. |
| 6 | VCC | power_in | Positive output supply for the gate driver; locally decouple to VEE. |
| 7 | OUT_A | output | Output of the 'A' side driver, swinging from VCC to VEE, capable of sourcing 3 A and sinking 5 A. |
| 8 | NC | unconnected | No internal connection on this pin; the datasheet lists it as No Connection. |
| 9 | Exposed Pad | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | MSOP-8-EP |
| Category | Motor Driver ICs |
| Pins | 9 |

## CAD (KiCad official)

- Symbol: `LM5111-1MY`
- Footprint: `Package_SO:MSOP-8-1EP_3x3mm_P0.65mm_EP1.5x1.8mm`
- 3D model: MSOP-8-EP (KiCad packages3D, STEP)
- 3D model files: `lm5111-1my-etched.step` / `lm5111-1my-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm5111-1my.step` / `lm5111-1my.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/lm5111) (30 pp, sha256 `56561d1ca5fd2ee0`, retrieved 2026-10-08, 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/lm5111-1my-datasheet.pdf)