component
TP4054LS5
Public Unreviewedby Ray
TECH PUBLIC Battery Management, SOT-23-5. Datasheet-verified pinout, 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
markdownTP4054LS5
TECH PUBLIC · Battery Management · SOT-23-5
TP4054LS5 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 indicator. Strongly pulled low (~10 mA sink) while charging; switches to a weak 20 uA pull-down when charging completes; high-impedance when Vcc is below UVLO or Vcc-Vbat < 30 mV. Leave floating or tie to GND if unused. |
| 2 | GND | power_in | Device ground / power return. |
| 3 | BAT | power_out | Battery positive terminal. Sources charge current to the cell and regulates to 4.2 V float voltage. Leakage current < 3 uA when disabled or in sleep mode. |
| 4 | VCC | power_in | Input supply, 4.0 V to 6 V (5 V typical). Must exceed the UVLO threshold and be at least 100 mV above BAT for charging to begin; if VCC falls below UVLO or within 30 mV of BAT, the chip enters low-power shutdown. |
| 5 | PROG | input | Constant-current charge programming pin. Connect a resistor RPROG from PROG to GND to set IBAT per RPROG = 1000 V / IBAT (e.g. 2 kΩ → 500 mA, 10 kΩ → 100 mA). Pin is regulated to 1 V in constant-current mode and 0.1 V in trickle-charge mode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TECH PUBLIC |
| Package | SOT-23-5 |
| Category | PMIC |
| Pins | 5 |
Ordering variants
Same part, different packaging or reel option.
TP4054LS5
CAD (KiCad official)
- Symbol:
TP4054LS5 - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: TECH PUBLIC datasheet (7 pp, sha256
fe75f5f69e9e07b4, 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).