LM5101AMR

Texas Instruments · Gate Drivers · SO-8

LM5101AMR from Texas Instruments, in a SO-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	VDD	power_in	Positive gate drive supply, recommended 9 V to 14 V with an absolute maximum of 18 V to VSS, and should be locally decoupled to VSS with a low ESR/ESL capacitor placed as close to the IC as possible.
2	HB	power_in	High-side gate driver bootstrap supply; the bootstrap capacitor positive terminal connects to HB and negative terminal to HS, placed as close to the IC as possible, with HB to HS absolute maximum 18 V and recommended HB of VHS + 8 V to VHS + 14 V.
3	HO	output	High-side gate driver output, to be connected to the high-side MOSFET gate by a short, low-inductance path, with HO limited to VHS − 0.3 V to VHB + 0.3 V.
4	HS	passive	High-side MOSFET source connection, to be connected to the bootstrap capacitor negative terminal and the high-side MOSFET source, with a recommended range of −1 V to 100 V and HS slew rate below 50 V/ns.
5	HI	input	High-side driver control input with TTL thresholds on the LM5101A, and unused inputs should be tied to ground and not left open.
6	LI	input	Low-side driver control input with TTL thresholds on the LM5101A, and unused inputs should be tied to ground and not left open.
7	VSS	power_in	Ground return to which all signals are referenced, and the exposed pad should be soldered to the ground plane.
8	LO	output	Low-side gate driver output, to be connected to the low-side MOSFET gate by a short, low-inductance path, with LO limited to −0.3 V to VDD + 0.3 V.

Key specifications

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

CAD (KiCad official)

Symbol: LM5101AMR
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SO-8 (KiCad packages3D, STEP)
3D model files: lm5101amr-etched.step / lm5101amr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm5101amr.step / lm5101amr.glb are the bare package body.

Provenance

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

Datasheet: Texas Instruments datasheet (48 pp, sha256 391d008aa275b045, retrieved 2026-10-10, 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

# LM5101AMR

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

LM5101AMR from Texas Instruments, in a SO-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 | VDD | power_in | Positive gate drive supply, recommended 9 V to 14 V with an absolute maximum of 18 V to VSS, and should be locally decoupled to VSS with a low ESR/ESL capacitor placed as close to the IC as possible. |
| 2 | HB | power_in | High-side gate driver bootstrap supply; the bootstrap capacitor positive terminal connects to HB and negative terminal to HS, placed as close to the IC as possible, with HB to HS absolute maximum 18 V and recommended HB of VHS + 8 V to VHS + 14 V. |
| 3 | HO | output | High-side gate driver output, to be connected to the high-side MOSFET gate by a short, low-inductance path, with HO limited to VHS − 0.3 V to VHB + 0.3 V. |
| 4 | HS | passive | High-side MOSFET source connection, to be connected to the bootstrap capacitor negative terminal and the high-side MOSFET source, with a recommended range of −1 V to 100 V and HS slew rate below 50 V/ns. |
| 5 | HI | input | High-side driver control input with TTL thresholds on the LM5101A, and unused inputs should be tied to ground and not left open. |
| 6 | LI | input | Low-side driver control input with TTL thresholds on the LM5101A, and unused inputs should be tied to ground and not left open. |
| 7 | VSS | power_in | Ground return to which all signals are referenced, and the exposed pad should be soldered to the ground plane. |
| 8 | LO | output | Low-side gate driver output, to be connected to the low-side MOSFET gate by a short, low-inductance path, with LO limited to −0.3 V to VDD + 0.3 V. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `LM5101AMR`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SO-8 (KiCad packages3D, STEP)
- 3D model files: `lm5101amr-etched.step` / `lm5101amr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm5101amr.step` / `lm5101amr.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/lm5100a) (48 pp, sha256 `391d008aa275b045`, retrieved 2026-10-10, 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/lm5101amr-datasheet.pdf)