component
LM311PWR
Public Made by Adomby adom
Texas Instruments Comparators, TSSOP-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
markdownLM311PWR
Texas Instruments · Comparators · TSSOP-8
LM311PWR from Texas Instruments, in a TSSOP-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 | EMIT OUT | output | Output emitter capable of driving loads referenced to ground or supply rails, rated for maximum 30V from emitter to VCC-. |
| 2 | IN+ | input | Noninverting input of the differential comparator accepting input voltages between VCC- + 0.5V and VCC+ - 1.5V. |
| 3 | IN- | input | Inverting input of the differential comparator accepting input voltages between VCC- + 0.5V and VCC+ - 1.5V. |
| 4 | VCC- | power_in | Negative supply voltage rail with minimum rating of -18V. |
| 5 | BALANCE | input | Offset voltage balance adjustment input. |
| 6 | BAL/STRB | input | Strobe input that drives the output to the off state when pulled low. |
| 7 | COL OUT | output | Output collector capable of driving loads referenced to ground or supply rails, rated for maximum 40V from collector to VCC-. |
| 8 | VCC+ | power_in | Positive supply voltage rail with maximum rating of +18V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-8 |
| Category | Amplifiers/Comparators |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
LM311PWR - Footprint:
Package_SO:TSSOP-8_3x3mm_P0.65mm - 3D model: TSSOP-8 (KiCad packages3D, STEP)
- 3D model files:
lm311pwr-etched.step/lm311pwr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm311pwr.step/lm311pwr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (42 pp, sha256
1877bb45737cb7e8, retrieved 2026-10-05, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-4-5-20251001(text), consensusclaude-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).