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FM5057

Public Made by Adom

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Shenzhen Fuman Battery Management, SOT-89-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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FM5057

Shenzhen Fuman · Battery Management · SOT-89-5

FM5057 from Shenzhen Fuman, in a SOT-89-5. 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 VDD power_in Positive supply and cell-positive input of the IC; the absolute maximum VDD is -0.3 V to +10 V and the stated operating voltage range is 1.5 V to 10 V.
2 GND power_in Negative supply and cell-negative input of the IC, serving as the battery-side ground reference.
3 GND power_in Negative supply and cell-negative input of the IC, serving as the battery-side ground reference (pin 3 is internally tied with pin 2 per the datasheet's '2、3' grouping).
4 VM input Overcurrent and short-circuit detection pin connected to the load ground terminal; the allowed input voltage is VDD-6 V to VDD+0.3 V.
5 VM input Overcurrent and short-circuit detection pin connected to the load ground terminal; the allowed input voltage is VDD-6 V to VDD+0.3 V (pin 5 is grouped with pin 4 in the datasheet's '4、5' entry).

Key specifications

Parameter Value
Manufacturer Shenzhen Fuman
Package SOT-89-5
Category Power Management (PMIC)
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
Operating voltage VDD 1.5 10 V 2
Operating current IDD 3 6 uA VDD=3.7V 2
Overcharge detection voltage VOCP 4.245 4.275 4.305 V 2
Overcharge release voltage VOCR 4.025 4.075 4.125 V 2
Overdischarge detection voltage VODP 2.35 2.425 2.5 V 2
Overdischarge release voltage VODR 2.775 2.825 2.875 V 2
Overcurrent discharge detection voltage VOI 0.12 0.15 0.18 V 2
Overcurrent charge detection voltage VCI -0.12 -0.15 -0.18 V 2
Short-circuit current detection voltage VSHORT 0.82 1.36 1.75 V VDD=3.6V 2
Overcharge detection delay time TOC 60 120 170 ms VDD=3.6V~4.4V 2
Overdischarge detection delay time TOD 30 60 95 ms VDD=3.6V~2.0V 2
Overcurrent detection delay time TOI 4 7 11 ms VDD=3.6V 2
Short-circuit current detection delay time TSHORT 200 400 600 us VDD=3.6V 2
MOSFET on-resistance RDS(on) 15.8 18 mΩ VGS = 3.7V, ID = 1.0A 2
Supply voltage (absolute maximum) VDD -0.3 10 V 2
Operating temperature TA -40 85 ℃ 2
Storage temperature -55 125 ℃ 2

CAD (KiCad official)

  • Symbol: FM5057
  • Footprint: Package_TO_SOT_SMD:SOT-89-5
  • 3D model: SOT-89-5 (KiCad packages3D, STEP)
  • 3D model files: fm5057-etched.step / fm5057-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); fm5057.step / fm5057.glb are the bare package body.

Provenance

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

  • Datasheet: Shenzhen Fuman datasheet (5 pp, sha256 7e07cc32fc535e79, retrieved 2026-10-18, 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