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TP4056-42-EMSOP8
Public Made by Adomby adom
TOPPOWER Nanjing Extension Microelectronics Battery Management, MSOP-8-EP. Pinout cross-checked by two models against 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
markdownTP4056-42-EMSOP8
TOPPOWER Nanjing Extension Microelectronics · Battery Management · MSOP-8-EP
TP4056-42-EMSOP8 from TOPPOWER Nanjing Extension Microelectronics, in a MSOP-8-EP. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | TEMP | input | Battery temperature sense input for the NTC thermistor; charging is suspended if TEMP is below 45% or above 80% of VCC, and grounding TEMP disables the function. |
| 2 | PROG | bidirectional | Constant-current programming pin: a resistor RPROG to GND sets the charge current (IBAT = VPROG/RPROG × 1100), with VPROG regulated to 1V in constant-current mode and 0.1V in recharge mode. |
| 3 | GND | power_in | Ground terminal for the charger. |
| 4 | VCC | power_in | Positive input supply, specified 4.0V to 8.0V (absolute maximum -0.3V to 8V); the device enters shutdown when VCC is within 30mV of the BAT pin voltage. |
| 5 | BAT | power_out | Battery connection that delivers charge current and regulates the final float voltage to 4.2V; it draws less than 2µA in chip-disable or sleep mode. |
| 6 | STDBY | output | Open-drain charge-complete status output that is pulled low by an internal switch when the charge cycle completes and is high impedance otherwise. |
| 7 | CHRG | output | Open-drain charge status output that is pulled low by an internal switch while the battery is charging and is high impedance otherwise. |
| 8 | CE | input | Chip enable input: a logic high enables normal operation and a logic low puts the TP4056 into shutdown; it can be driven by TTL or CMOS logic levels. |
| 9 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TOPPOWER Nanjing Extension Microelectronics |
| Package | MSOP-8-EP |
| Category | Power Management (PMIC) |
| Pins | 9 |
CAD (KiCad official)
- Symbol:
TP4056-42-EMSOP8 - Footprint:
Package_SO:MSOP-8-1EP_3x3mm_P0.65mm_EP1.5x1.8mm - 3D model: MSOP-8-EP (KiCad packages3D, STEP)
- 3D model files:
tp4056-42-emsop8-etched.step/tp4056-42-emsop8-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tp4056-42-emsop8.step/tp4056-42-emsop8.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: TOPPOWER Nanjing Extension Microelectronics datasheet (15 pp, sha256
10cf357f93b118df, retrieved 2026-10-10, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).