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Contents

README

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CL4057A

ChipLink Tech · Battery Management ICs · SOT-23-6

CL4057A from ChipLink Tech, in a SOT-23-6. 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 CHRG tri_state Open-drain charging status indicator output; pulled low during active charging, otherwise high-impedance.
2 GND power_in Ground terminal.
3 BAT power_out Battery terminal providing up to 500mA constant-current charging at 4.24V ±1% regulated float voltage.
4 VCC power_in Power supply input with required operating range 4.0V to 6.5V.
5 STDBY tri_state Open-drain charging completion indicator output; pulled low when charging complete, otherwise high-impedance.
6 PROG input Programming resistor to ground connection for setting charging current via voltage monitoring at 0.93V to 1.07V during constant-current charging.

Key specifications

Parameter Value
Manufacturer ChipLink Tech
Package SOT-23-6
Category Power Supply Chip
Pins 6

CAD (KiCad official)

  • Symbol: CL4057A
  • Footprint: Package_TO_SOT_SMD:SOT-23-6
  • 3D model: SOT-23-6 (KiCad packages3D, STEP)
  • 3D model files: cl4057a-etched.step / cl4057a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cl4057a.step / cl4057a.glb are the bare package body.

Provenance

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

  • Datasheet: ChipLink Tech datasheet (9 pp, sha256 9bec72c291d3c199, retrieved 2026-09-17, 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: 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