component

LM5109BMA

Public Made by Adom

by adom

Texas Instruments Gate Drivers, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
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docs Publish 0.1.0 · Ray 21h ago
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package.json lm5109bma: LCSC part number C1549317 (was published as the bare integer) · Ray 35m ago
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README.md Initial commit: component/lm5109bma · Ray 21h ago

LM5109BMA

Texas Instruments · Gate Drivers · SOIC-8

LM5109BMA 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 VDD power_in Positive gate drive supply - Locally decouple to VSS using low ESR and ESL capacitor located as close to IC as possible.
2 HI input High-side control input - The HI input is compatible with TTL and CMOS input thresholds. Unused HI input must be tied to ground and not left open.
3 LI input Low-side control input - The LI input is compatible with TTL and CMOS input thresholds. Unused LI input must be tied to ground and not left open.
4 VSS power_in Ground - All signals are referenced to this ground.
5 LO output Low-side gate driver output - Connect to the gate of the low-side N-MOS device.
6 HS power_in High-side source connection - Connect to the negative terminal of the bootstrap capacitor and to the source of the high-side N-MOS device.
7 HO output High-side gate driver output - Connect to the gate of the high-side N-MOS device.
8 HB power_in High-side gate driver positive supply rail - Connect the positive terminal of the bootstrap capacitor to HB and the negative terminal of the bootstrap capacitor to HS. The bootstrap capacitor must be placed as close to IC as possible.

Key specifications

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

CAD (KiCad official)

  • Symbol: LM5109BMA
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: lm5109bma-etched.step / lm5109bma-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm5109bma.step / lm5109bma.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (29 pp, sha256 8e29b5a213117fac, 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