component

4056H

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by Ray

HL Battery Management, ESOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.

componentpower management (pmic)4056h
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Contents

README

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4056H

HL · Battery Management · ESOP-8

4056H from HL, 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 temperature sense input. Connect to the mid-point of an NTC/resistor divider from VCC; charging pauses when V(TEMP) is outside 30%*VCC to 60%*VCC. Tie to GND to disable temperature monitoring.
2 PROG bidirectional Constant-current programming pin and charge-current monitor. A resistor RPROG from PROG to GND sets IBAT (0.82K -> 1000mA, 2K -> 450mA). Pin regulates to ~1.0V in current mode; floating PROG shuts the charger down.
3 GND power_in Device ground. The exposed thermal pad on the package underside is also connected to GND and should be soldered to a copper heat-spreading area.
4 VCC power_in Positive supply input. Nominal operating voltage 5V; absolute maximum 30V, with input OVP shutdown at ~6.5V (450mV hysteresis). UVLO threshold ~3.80V.
5 BAT power_out Single-cell Li-Ion battery connection. Sources up to 1A charge current, regulates to 4.2V float (4056H-42 option). Auto-recharge threshold is 95mV below VFLOAT; sleep-mode leakage <0.1uA when VCC is removed. Requires ~10uF bypass to GND.
6 STDBY output Open-drain, active-low charge-complete indicator. Pulls low (VOL <=0.5V @ 5mA) when the battery is fully charged and the charger is in standby; high-impedance otherwise. Typically drives a green LED to VCC through a series resistor.
7 CHRG output Open-drain, active-low charging status output. Pulls low (VOL <=0.5V @ 5mA) while charging is in progress; high-impedance when charging is complete or the chip is in fault/standby. Typically drives a red LED to VCC.
8 CE input Chip enable input (Schmitt). Drive high (up to 28V tolerant) to enable charging; drive low to place the device in shutdown (battery leakage <0.1uA).

Key specifications

Parameter Value
Manufacturer HL
Package ESOP-8
Category Power Management (PMIC)
Pins 8

Ordering variants

Same part, different packaging or reel option.

  • 4056H-42ES
  • 4056H-42DF8

CAD (KiCad official)

  • Symbol: 4056H
  • Footprint: Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm
  • 3D model: ESOP-8 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: HL datasheet (10 pp, sha256 381cd0b928324486, 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).

Datasheet PDF