component
LGS4084HB6
Public Made by Adomby adom
Legend Si Battery Management, SOT-23-6. 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
markdownLGS4084HB6
Legend Si · Battery Management · SOT-23-6
LGS4084HB6 from Legend Si, in a SOT-23-6. 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 | CHRG | output | Charging-status LED drive pin, with an absolute maximum rating of -0.3V to 28V. |
| 2 | GND | power_in | Ground reference for the charger; the layout guidance calls for a ground plane with vias to ground. |
| 3 | BAT | power_out | Battery connection and charge output, with an absolute maximum rating of -0.3V to 6V and constant-voltage regulation of 4.15V to 4.25V (4.20V typical) for the 4.2V version. |
| 4 | VCC | power_in | Input supply pin with a 4V to 6V operating range (5V typical), an overvoltage threshold (VOVP) of 6.25V, and an absolute maximum rating of -0.3V to 28V. |
| 5 | FULL | output | Full-charge status LED drive pin; the datasheet gives no separate absolute rating for this pin. |
| 6 | PROG | output | Charge-current program pin with a 1V (1%) reference, where the charge current is IBAT = (VPROG/RPROG) × 1000, and an absolute maximum rating of -0.3V to 6V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Legend Si |
| Package | SOT-23-6 |
| Category | Power Management (PMIC) |
| Pins | 6 |
CAD (KiCad official)
- Symbol:
LGS4084HB6 - Footprint:
Package_TO_SOT_SMD:SOT-23-6 - 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files:
lgs4084hb6-etched.step/lgs4084hb6-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lgs4084hb6.step/lgs4084hb6.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Legend Si datasheet (12 pp, sha256
5b0673a38e5092e6, retrieved 2026-10-09, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(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).