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Contents

README

markdown

CL4056H

ChipLink Tech · Battery Management ICs · ESOP-8

CL4056H from ChipLink Tech, in a ESOP-8. 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 TEMP input Battery thermistor input; charging paused if voltage exceeds 80% VCC or drops below 45% VCC.
2 PROG input Charging current programming pin; resistor to GND sets charging current (typical voltage 1.0V in constant-current mode).
3 GND power_in Ground reference.
4 VCC power_in Power supply input; operating range 4.0 to 6.5V, absolute maximum 30V.
5 BAT bidirectional Battery terminal; float voltage 4.24V for lithium-ion cells, 1A maximum charging current, absolute range -0.3V to 18V.
6 STDBY tri_state Open-drain charging-complete status output; pulled low (0.35-0.6V @ 5mA) when charging finished, otherwise high impedance.
7 CHRG tri_state Open-drain charging-in-progress status output; pulled low (0.35-0.6V @ 5mA) during active charging, otherwise high impedance.
8 CE input Chip enable control input; charging operation enabled when logic high, disabled when logic low.
9 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer ChipLink Tech
Package ESOP-8
Category Power Supply Chip
Pins 9

CAD (KiCad official)

  • Symbol: CL4056H
  • Footprint: Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm
  • 3D model: ESOP-8 (KiCad packages3D, STEP)
  • 3D model files: cl4056h-etched.step / cl4056h-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cl4056h.step / cl4056h.glb are the bare package body.

Provenance

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

  • Datasheet: ChipLink Tech datasheet (11 pp, sha256 2deca520cf262fb7, 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