LM5102SD

Texas Instruments · Gate Drivers · WSON-10-EP(4x4)

LM5102SD from Texas Instruments, in a WSON-10-EP(4x4). 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, to be decoupled to VSS with a low ESR/ESL capacitor placed as close to the IC as possible; recommended 9 V to 14 V, with an absolute maximum of 18 V to VSS.
2	HB	power_in	High-side gate driver bootstrap rail, to which the positive terminal of the bootstrap capacitor connects; recommended VHS + 8 V to VHS + 14 V, with VHB to VHS limited to 18 V absolute maximum.
3	HO	output	High-side gate driver output, connected to the high-side MOSFET gate by a short low-inductance path; limited to VHS − 0.3 V to VHB + 0.3 V.
4	HS	power_in	High-side MOSFET source connection and negative terminal of the bootstrap capacitor; recommended range −1 V to 100 V, with HS slew rate below 50 V/ns.
5	RT1	passive	Resistor from RT1 to VSS programs the rising edge delay of the high-side output and should be placed close to the IC; limited to −0.3 V to 5 V to VSS.
6	RT2	passive	Resistor from RT2 to VSS programs the rising edge delay of the low-side output and should be placed close to the IC; limited to −0.3 V to 5 V to VSS.
7	HI	input	High-side driver control input with TTL-compatible thresholds; unused inputs must be tied to ground and not left open, with absolute limits of −0.3 V to VDD + 0.3 V.
8	LI	input	Low-side driver control input with TTL-compatible thresholds; unused inputs must be tied to ground and not left open, with absolute limits of −0.3 V to VDD + 0.3 V.
9	VSS	power_in	Ground return to which all signals are referenced.
10	LO	output	Low-side gate driver output, connected to the low-side MOSFET gate by a short low-inductance path; limited to −0.3 V to VDD + 0.3 V.
11	EP	passive	Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	WSON-10-EP(4x4)
Category	Motor Driver ICs
Pins	11

CAD (KiCad official)

Symbol: LM5102SD
Footprint: Package_SON:WSON-10-1EP_4x4mm_P0.8mm_EP2.6x3mm
3D model: WSON-10-EP(4x4) (KiCad packages3D, STEP)
3D model files: lm5102sd-etched.step / lm5102sd-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm5102sd.step / lm5102sd.glb are the bare package body.

Provenance

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

Datasheet: Texas Instruments datasheet (26 pp, sha256 6d701ba09d50ea77, retrieved 2026-10-11, 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

# LM5102SD

**Texas Instruments** · Gate Drivers · WSON-10-EP(4x4)

LM5102SD from Texas Instruments, in a WSON-10-EP(4x4). 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, to be decoupled to VSS with a low ESR/ESL capacitor placed as close to the IC as possible; recommended 9 V to 14 V, with an absolute maximum of 18 V to VSS. |
| 2 | HB | power_in | High-side gate driver bootstrap rail, to which the positive terminal of the bootstrap capacitor connects; recommended VHS + 8 V to VHS + 14 V, with VHB to VHS limited to 18 V absolute maximum. |
| 3 | HO | output | High-side gate driver output, connected to the high-side MOSFET gate by a short low-inductance path; limited to VHS − 0.3 V to VHB + 0.3 V. |
| 4 | HS | power_in | High-side MOSFET source connection and negative terminal of the bootstrap capacitor; recommended range −1 V to 100 V, with HS slew rate below 50 V/ns. |
| 5 | RT1 | passive | Resistor from RT1 to VSS programs the rising edge delay of the high-side output and should be placed close to the IC; limited to −0.3 V to 5 V to VSS. |
| 6 | RT2 | passive | Resistor from RT2 to VSS programs the rising edge delay of the low-side output and should be placed close to the IC; limited to −0.3 V to 5 V to VSS. |
| 7 | HI | input | High-side driver control input with TTL-compatible thresholds; unused inputs must be tied to ground and not left open, with absolute limits of −0.3 V to VDD + 0.3 V. |
| 8 | LI | input | Low-side driver control input with TTL-compatible thresholds; unused inputs must be tied to ground and not left open, with absolute limits of −0.3 V to VDD + 0.3 V. |
| 9 | VSS | power_in | Ground return to which all signals are referenced. |
| 10 | LO | output | Low-side gate driver output, connected to the low-side MOSFET gate by a short low-inductance path; limited to −0.3 V to VDD + 0.3 V. |
| 11 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | WSON-10-EP(4x4) |
| Category | Motor Driver ICs |
| Pins | 11 |

## CAD (KiCad official)

- Symbol: `LM5102SD`
- Footprint: `Package_SON:WSON-10-1EP_4x4mm_P0.8mm_EP2.6x3mm`
- 3D model: WSON-10-EP(4x4) (KiCad packages3D, STEP)
- 3D model files: `lm5102sd-etched.step` / `lm5102sd-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm5102sd.step` / `lm5102sd.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/lm5102) (26 pp, sha256 `6d701ba09d50ea77`, retrieved 2026-10-11, 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/lm5102sd-datasheet.pdf)