component
BQ29729DSER
Public Made by Adomby adom
Texas Instruments Battery Management, WSON-6(1.5x1.5). 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
markdownBQ29729DSER
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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bq29729dser.step/bq29729dser.glbare 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, 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).