component
LM3881MM
Public Made by Adomby adom
Texas Instruments Supervisor And Reset ICs, VSSOP-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
markdownLM3881MM
Texas Instruments · Supervisor And Reset ICs · VSSOP-8
LM3881MM from Texas Instruments, in a VSSOP-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 | VCC | power_in | Input supply voltage, 2.7 V to 5.5 V |
| 2 | EN | input | Precision enable input with 1.22 V threshold to initiate power-up sequence |
| 3 | GND | power_in | Ground |
| 4 | INV | input | Output logic invert control input; tie to logic high or low, must not float |
| 5 | TADJ | output | Timer adjust output driven by 12 µA typical current source/sink to charge/discharge external timing capacitor |
| 6 | FLAG3 | tri_state | Open-drain output 3, sequentially released 8 clock cycles after FLAG2 during power-up sequence |
| 7 | FLAG2 | tri_state | Open-drain output 2, sequentially released 8 clock cycles after FLAG1 during power-up sequence |
| 8 | FLAG1 | tri_state | Open-drain output 1, first to release 9-10 clock cycles after EN threshold exceeded during power-up |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | VSSOP-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
LM3881MM - Footprint:
Package_SO:VSSOP-8_2.3x2mm_P0.5mm - 3D model: VSSOP-8 (KiCad packages3D, STEP)
- 3D model files:
lm3881mm-etched.step/lm3881mm-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm3881mm.step/lm3881mm.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (28 pp, sha256
5a16f08fc251070f, 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).