component
LM5109AMAX
Public Made by Adomby adom
Texas Instruments Gate Drivers, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownLM5109AMAX
Texas Instruments · Gate Drivers · SOIC-8
LM5109AMAX 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 supply voltage for low-side driver and logic, 8V to 14V recommended operating range. |
| 2 | HI | input | High-side gate control input, TTL compatible with input threshold 1.8V to 2.2V. |
| 3 | LI | input | Low-side gate control input, TTL compatible with input threshold 1.8V to 2.2V. |
| 4 | VSS | power_in | Ground reference for all logic signals and low-side driver outputs. |
| 5 | LO | output | Low-side gate driver output with 1.0A peak sink and source capability referenced to VSS. |
| 6 | HS | power_in | High-side floating reference node connected to high-side MOSFET source, voltage range -5V to 90V relative to VSS. |
| 7 | HO | output | High-side gate driver output with 1.0A peak sink and source capability, referenced to HS floating node. |
| 8 | HB | power_in | High-side floating supply rail for gate driver stage, bootstrap capacitor positive connection point, maximum 108V to VSS. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Motor Driver ICs |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
LM5109AMAX - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
lm5109amax-etched.step/lm5109amax-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm5109amax.step/lm5109amax.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (29 pp, sha256
808ea6839f052259, retrieved 2026-09-27, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-4-6(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).