component
DW02CA.
Public Unreviewedby Ray
Shenzhen Fuman Battery Management, SOT-23-5. Datasheet-verified pinout, KiCad symbol/footprint/3D.
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markdownDW02CA.
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)
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).