component

BQ29729DSER

Public Made by Adom

by adom

Texas Instruments Battery Management, WSON-6(1.5x1.5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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BQ29729DSER

Texas Instruments · Battery Management · WSON-6(1.5x1.5)

BQ29729DSER from Texas Instruments, in a WSON-6(1.5x1.5). 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 NC unconnected No connection, electrically open.
2 COUT output Gate drive output for charge FET, driven from BAT supply and transitions low on fault detection to turn off CHG FET.
3 DOUT output Gate drive output for discharge FET, driven from BAT supply and transitions low on fault detection to turn off DSG FET.
4 VSS power_in Cell negative ground reference pin for all cell voltage measurements and overcurrent protection differential amplifier inputs.
5 BAT power_in Input supply pin connected to positive battery terminal with 0.1µF input capacitor to ground for filtering noise.
6 V- power_in Sense node for measuring fault detection conditions such as overcurrent charging or discharging, forms differential measurement with VSS.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package WSON-6(1.5x1.5)
Category Power Management (PMIC)
Pins 6

CAD (KiCad official)

  • Symbol: BQ29729DSER
  • Footprint: Package_SON:WSON-6_1.5x1.5mm_P0.5mm
  • 3D model: WSON-6(1.5x1.5) (KiCad packages3D, STEP)
  • 3D model files: bq29729dser-etched.step / bq29729dser-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bq29729dser.step / bq29729dser.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (35 pp, sha256 d01a24783b0ea8a1, retrieved 2026-10-03, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-4-5-20251001 (text), consensus claude-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).

Datasheet PDF