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DW02RA.

Public Made by Adom

by adom

Shenzhen Fuman Battery Management ICs, SOT23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Contents

README

markdown

DW02RA.

Shenzhen Fuman · Battery Management ICs · SOT23-5

DW02RA. from Shenzhen Fuman, in a SOT23-5. 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 Pin 1 is an empty (no-connect) pin according to the datasheet pin description.
2 GND power_in Power ground, connected to the negative terminal of the supply (battery); all voltages are specified relative to GND.
3 VDD power_in Supply input, connected to the positive terminal of the battery; the absolute maximum rating is -0.3 to +10 V.
4 VM input Charge/discharge current sense input; the allowed input voltage is VDD-6 V to VDD+0.3 V.
5 VM input Charge/discharge current sense input (second VM pin, shared with pin 4); the allowed input voltage is VDD-6 V to VDD+0.3 V.

Key specifications

Parameter Value
Manufacturer Shenzhen Fuman
Package SOT23-5
Category Power Supply Chip
Pins 5

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
供电电源 VDD VDD 1.5 10 V ■ -40℃≤TA≤85℃ 3
过电压充电保护阈值 (由低到高) VOC -0.05 0.05 V 3
过电压充电保护阈值 (由低到高) 温度范围 VOC -0.08 0.08 V ■ -40℃≤TA≤85℃ 3
过电压充电恢复阈值 (由高到低) VOCR -0.075 0.075 V 3
过电压充电恢复阈值 (由高到低) 温度范围 VOCR -0.105 0.105 V ■ -40℃≤TA≤85℃ 3
过电压充电保护延迟时间 TOC 77 110 143 ms VDD=3.6V→4.5V 3
过电压放电保护阈值 (由高到低) VOD -0.075 0.075 V 3
过电压放电保护阈值 (由高到低) 温度范围 VOD -0.105 0.105 V ■ -40℃≤TA≤85℃ 3
过电压放电恢复阈值 (由低到高) VODR -0.075 0.075 V 3
过电压放电恢复阈值 (由低到高) 温度范围 VODR -0.105 0.105 V ■ -40℃≤TA≤85℃ 3
过电压放电保护延迟时间 TOD 38.5 55 71.5 ms VDD=3.6V→2.3V 3
过电流放电保护检测 IIov 5 7 8.5 A 3
过电流充电保护检测 IIoc 4 6.5 7 A 3
过电流放电保护延迟时间 TEDI 4.9 7 9.1 ms 3
过电流充电保护延迟时间 TECI 4.9 7 9.1 ms 3
短路保护延迟时间 TSHORT 250 500 us VDD=3.6V 3
充电器检测电压 VCHG -0.27 -0.5 -0.86 V VDD=3.0V 3
工作电流 IDD 1.3 6 μA VDD=3.6V 3
静态源-源极通态电阻 (VM 至 GND) RSS(ON) 40 55 mΩ VDD=3.7V,IO=1A 3
VDD 供电电源 (绝对最大) VDD -0.3 10 V 2
工作温度 TA -40 85 ℃ 2
结温 125 ℃ 2
贮存温度 -55 125 ℃ 2
功耗 PD 500 mW TA=25℃ 2
封装热阻 θJA 250 ℃/W 2
焊接温度 (锡焊，10 秒) 260 ℃ 锡焊，10 秒 2
防静电保护 (人体模式) ESD 8 kV 人体模式 2

CAD (KiCad official)

  • Symbol: DW02RA.
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT23-5 (KiCad packages3D, STEP)
  • 3D model files: dw02ra-etched.step / dw02ra-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); dw02ra.step / dw02ra.glb are the bare package body.

Provenance

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

  • Datasheet: Shenzhen Fuman datasheet (6 pp, sha256 2f434aae4aacee21, retrieved 2026-10-28, 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-5-5 (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