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DW02CA.

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Shenzhen Fuman Battery Management, SOT-23-5. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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Contents

README

markdown

DW02CA.

Shenzhen Fuman · Battery Management · SOT-23-5

DW02CA. from Shenzhen Fuman, in a SOT-23-5. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 NC unconnected No connection. Leave floating on the PCB.
2 GND power_in Power/reference ground. Connect to the negative terminal of the Li-ion cell. All internal detection thresholds are referenced to this pin.
3 VDD power_in Power supply input, connected to the positive terminal of the Li-ion cell (typ. through a ~100 Ω series resistor R1). Operating range 1.5 V to 10 V; absolute-max -0.3 V to +10 V. Used to sense cell voltage for OV-charge (VOC=4.30 V) and OV-discharge (VOD=2.44 V) thresholds.
4 VM bidirectional Charge/discharge current sense input, tied to pack negative terminal (P-). Voltage across the internal N-MOSFET (VM to GND) is compared against overcurrent-discharge (VEDI), overcurrent-charge (VECI), short-circuit (VSHORT ~18 A) and charger-detect (VCHG=-0.5 V) thresholds. Allowed input range VDD-6 V to VDD+0.3 V. Pin 4 is internally tied to pin 5.
5 VM bidirectional Charge/discharge current sense input, tied to pack negative terminal (P-). Internally connected to pin 4. Same electrical function and limits as pin 4.

Key specifications

Parameter Value
Manufacturer Shenzhen Fuman
Package SOT-23-5
Category PMIC
Pins 5

CAD (KiCad official)

  • Symbol: DW02CA.
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: dw02ca-etched.step / dw02ca-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); dw02ca.step / dw02ca.glb are the bare package body.

Provenance

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

  • Datasheet: Shenzhen Fuman datasheet (6 pp, sha256 b129889242cdd15b, retrieved 2026-08-17, 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: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF