component
LM5101AMRX
Public Made by Adomby adom
Texas Instruments Gate Drivers, SO-8. Datasheet-verified pinout, 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
markdownLM5101AMRX
Texas Instruments · Gate Drivers · SO-8
LM5101AMRX from Texas Instruments, in a SO-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VDD | power_in | Positive gate drive supply with recommended operating range of 9 V to 14 V; locally decouple to VSS using low ESR/ESL capacitor placed as close to the IC as possible. |
| 2 | HB | power_in | High-side gate driver bootstrap supply with recommended voltage range from VHS + 8 V to VHS + 14 V; connect positive terminal of bootstrap capacitor to this pin and negative terminal to HS. |
| 3 | HO | output | High-side gate driver output with absolute maximum voltage rating from VHS - 0.3 V to VHB + 0.3 V; connect to high-side MOSFET gate with short, low inductance path. |
| 4 | HS | passive | High-side MOSFET source connection with recommended operating voltage from -1 V to 100 V relative to VSS; serves as reference for high-side floating driver and bootstrap capacitor negative connection. |
| 5 | HI | input | High-side driver control input with TTL type threshold at 1.8 V rising edge typical for LM5101A/B/C variants; unused inputs must be tied to ground and not left open. |
| 6 | LI | input | Low-side driver control input with TTL type threshold at 1.8 V rising edge typical for LM5101A/B/C variants; unused inputs must be tied to ground and not left open. |
| 7 | VSS | power_in | Ground return to which all signals are referenced; exposed pad on package bottom must be soldered to ground plane for thermal and mechanical performance. |
| 8 | LO | output | Low-side gate driver output with peak sourcing current of 3 A for LM5101A at 25°C; connect to low-side MOSFET gate with short, low inductance path. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SO-8 |
| Category | Motor Driver ICs |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
LM5101AMRX - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SO-8 (KiCad packages3D, STEP)
- 3D model files:
lm5101amrx-etched.step/lm5101amrx-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm5101amrx.step/lm5101amrx.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (48 pp, sha256
391d008aa275b045, retrieved 2026-09-23, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-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).