component
TP4054S5-1
Public Made by Adomby adom
TECH PUBLIC Battery Management, SOT-23-5. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownTP4054S5-1
TECH PUBLIC · Battery Management · SOT-23-5
TP4054S5-1 from TECH PUBLIC, in a SOT-23-5. 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 output. Pulled low by an internal N-channel MOSFET during charging; high impedance when charging completes or when the IC detects an under-voltage lockout condition. Drives an external LED (typ. through 1kΩ to VCC) for charge indication. |
| 2 | GND | power_in | Device ground reference. |
| 3 | BAT | power_out | Charge current output to the Li-ion battery. Regulates the float voltage to 4.2V and delivers programmable charge current up to 500mA. An internal precision resistor divider senses BAT for termination and recharge; a reverse-battery protection circuit limits GND-to-BAT current to ~1mA if the cell is connected backwards. |
| 4 | VCC | power_in | External supply input, 4.3V to 7V typical (absolute max 11V). Requires at least 0.1µF-1µF decoupling capacitor to GND. When VCC drops within 30mV of VBAT, the part enters sleep mode with IBAT < 2µA. |
| 5 | PROG | bidirectional | Charge-current program, monitor, and shutdown pin. A 1% resistor to GND sets charge current per IBAT = (VPROG/RPROG) × 1000; PROG is held at ~1V in constant-current mode. Disconnecting the program resistor lets an internal 2.5µA source pull PROG above the ~1.0V shutdown threshold, placing the charger in shutdown (ICC drops to ~40µA). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TECH PUBLIC |
| Package | SOT-23-5 |
| Category | PMIC |
| Pins | 5 |
Ordering variants
Same part, different packaging or reel option.
TP4054S5-1
CAD (KiCad official)
- Symbol:
TP4054S5-1 - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files:
tp4054s5-1-etched.step/tp4054s5-1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tp4054s5-1.step/tp4054s5-1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: TECH PUBLIC datasheet (5 pp, sha256
7e9320ee15749212, 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).