component
TP4056
Public Unreviewedby adom
UMW Battery Management, ESOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Symbol & Footprint
Schematic Symbol
Open full view ↗PCB Footprint
Open full view ↗Datasheet
Open in new tab ↗README
markdownTP4056
UMW · Battery Management · ESOP-8
TP4056 from UMW, in a ESOP-8. Pinout and pin descriptions extracted from the datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | TEMP | input | Battery temperature detection (NTC) input. Connect to the midpoint of an NTC divider between VCC and GND to enable battery temperature monitoring; tie to GND to disable temperature sensing. Absolute maximum voltage -0.3 to 6.5 V. |
| 2 | PROG | passive | Programmable constant-current charging current setting terminal. Connect a resistor (RPROG) from PROG to GND to set the fast-charge current (e.g. RPROG=1.2k -> ~1000mA, RPROG=2.4k -> ~500mA). Also serves as a charge-current monitor output. Max terminal current 1.2 mA. |
| 3 | GND | power_in | Ground return. Connect to system ground; also serves as the exposed-pad thermal return for the ESOP-8 package. |
| 4 | VCC | power_in | Positive supply input (from USB or adapter). Operating range 4 V to 6.5 V; absolute maximum -0.3 to 6.5 V. Bypass with a >=10uF ceramic capacitor to GND. |
| 5 | BAT | power_out | Battery charging output. Connects to the positive terminal of the single-cell Li-ion battery; float voltage is regulated to 4.2 V (+/-1%). Maximum sink/source current 1.2 A. Automatic recharge and reverse-connection protection are provided. |
| 6 | STDBY | output | Open-drain charge-complete (standby) status indicator (active-low, name is overlined in the datasheet). Pulled low when charging has terminated and the part is in standby; high-impedance otherwise. Absolute maximum terminal voltage -0.3 to 8 V; typically drives an indicator LED to VCC through a series resistor. |
| 7 | CHRG | output | Open-drain charging-in-progress status indicator (active-low, name is overlined in the datasheet). Pulled low while a charge cycle is in progress; high-impedance otherwise. Absolute maximum terminal voltage -0.3 to 8 V; typically drives an indicator LED to VCC through a series resistor. |
| 8 | CE | input | Chip enable input (active-high). Drive high to enable charging; drive low to place the chip in shutdown (quiescent current drops to ~35uA). Absolute maximum voltage -0.3 to 6.5 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | UMW |
| Package | ESOP-8 |
| Category | PMIC |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
TP4056 - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm - 3D model: ESOP-8 (KiCad packages3D, STEP)
3D model downloads
Two STEP files. Same geometry, different body top:
| File | Size | Use it when |
|---|---|---|
tp4056.step |
193 KB | You want the bare part, or you mark your own boards. |
tp4056-etched.step |
1.2 MB | You want the part with TP4056 already on it. |
The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 306 faces against 63 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: UMW datasheet (18 pp, sha256
5b6992aca386df8b, retrieved 2026-08-17, tier: lcsc) - 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).