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TP4057S6

Public Unreviewed

by Ray

TECH PUBLIC Battery Management, SOT-23-6. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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TP4057S6

TECH PUBLIC · Battery Management · SOT-23-6

TP4057S6 from TECH PUBLIC, 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 output Open-drain charge status indicator. Pulled low (VCHRG typ 0.35V @ 5mA) while charging; high-impedance in other states. Blinks at ~20Hz when battery is absent (BAT has only a ~1uF cap). Absolute max -0.3 to 8V.
2 GND power_in Device ground return.
3 BAT power_out Charger output to the Li-ion cell. Regulates to VFLOAT = 4.24V (±1%) in constant-voltage mode; sources up to 500mA charge current (set by RPROG). Absolute max -0.3 to 6.5V; charge termination at C/10.
4 VCC power_in Input supply, 4.0V to 6.5V (typical application 4.7-6.5V). UVLO rising ~3.8V with 200mV hysteresis. Absolute max -0.3 to 6.5V; bypass with 4.7-10uF to GND.
5 STDBY output Open-drain standby / charge-complete indicator. Pulled low (VSTDBY typ 0.35V @ 5mA) after charge termination; high-impedance in other states. Absolute max -0.3 to 8V.
6 PROG bidirectional Charge-current program pin. Connect RPROG from PROG to GND; IBAT = (VPROG/RPROG)*1000, where VPROG=1.0V in CC mode (e.g. 2k -> 500mA, 10k -> 100mA). Also serves as the C/10 termination sense node and MSD (manual shutdown) input: pulling PROG above ~1.21V places the chip in shutdown (~25uA ICC).

Key specifications

Parameter Value
Manufacturer TECH PUBLIC
Package SOT-23-6
Category PMIC
Pins 6

Ordering variants

Same part, different packaging or reel option.

  • TP4057S6

CAD (KiCad official)

  • Symbol: TP4057S6
  • Footprint: Package_TO_SOT_SMD:SOT-23-6
  • 3D model: SOT-23-6 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: TECH PUBLIC datasheet (6 pp, sha256 4d58323045869d85, 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