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Contents

README

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BQ294502DRVR

Texas Instruments · Battery Management · WSON-6-EP(2x2)

BQ294502DRVR from Texas Instruments, in a WSON-6-EP(2x2). 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 V3 input Sense input for positive voltage of the third (topmost) cell; accepts 0-5 V differential input with external RC filter (RIN, CIN) as required in Section 9.2.1.
2 V2 input Sense input for positive voltage of the second (middle) cell; accepts 0-5 V differential input with external RC filter (RIN, CIN) as required in Section 9.2.1.
3 VSS power_in Ground; electrically connected to IC ground and negative terminal of the lowest cell in the battery stack.
4 V1 input Sense input for positive voltage of the first (lowest) cell; accepts 0-5 V differential input with external RC filter (RIN, CIN) as required in Section 9.2.1.
5 VDD power_in Power supply input; operates from 3 to 25 V recommended with quiescent current of 1 µA typical (Section 7.5).
6 OUT output N-channel FET gate driver output; transitions high after 4 s fixed delay when any cell voltage exceeds 4.35 V protection threshold, transitions low when all cell voltages fall below threshold minus 300 mV hysteresis (Section 8.3.2).
7 PWRPAD power_in Thermal pad internally connected to VSS; must be soldered to circuit board VSS ground plane for proper thermal management and mechanical performance (Section 11.1).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package WSON-6-EP(2x2)
Category Power Management (PMIC)
Pins 7

CAD (KiCad official)

  • Symbol: BQ294502DRVR
  • Footprint: Package_SON:WSON-6-1EP_2x2mm_P0.65mm_EP1x1.6mm
  • 3D model: WSON-6-EP(2x2) (KiCad packages3D, STEP)
  • 3D model files: bq294502drvr-etched.step / bq294502drvr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bq294502drvr.step / bq294502drvr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (25 pp, sha256 9a3e52a97d8e79bb, retrieved 2026-09-27, 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 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-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).

Datasheet PDF