component
PT4054
Public Made by Adomby adom
PUOLOP Battery Management, SOT-23-5L. 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
markdownPT4054
PUOLOP · Battery Management · SOT-23-5L
PT4054 from PUOLOP, in a SOT-23-5L. 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 | CHRG | output | Open-drain charge status output: an internal N-channel MOSFET pulls it low during charging, a weak ~20uA pulldown indicates AC present when the charge cycle ends, and it is forced high-impedance during undervoltage lockout. |
| 2 | GND | power_in | Ground pin. |
| 3 | BAT | power_out | Charge current output to the battery that regulates the final float voltage to 4.2V through a precision internal resistor divider, which is disconnected in shutdown mode; BAT pin current is rated to 800mA. |
| 4 | VCC | power_in | Positive input supply, specified at 4.25V to 6.5V and to be bypassed with at least one 1uF capacitor; the device enters shutdown and drops Ibat below 2uA when VCC falls to within 30mV of the BAT pin voltage. |
| 5 | PROG | passive | Charge current set, monitor and shutdown pin: a 1% resistor to GND sets Ibat = (Vprog/Rprog)x1000, the pin is held at 1V in constant-current mode, and the charger shuts down when the pin reaches the 1.22V threshold (PROG pin current rated to 800uA). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | PUOLOP |
| Package | SOT-23-5L |
| Category | Power Management (PMIC) |
| Pins | 5 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Input supply voltage range (as printed) | 4.5 | 6 | V | 2 | |||
| VCC supply voltage range | VCC | 4.25 | 6.5 | V | 2 | ||
| PROG pin voltage | PROG | -0.3 | V | Maximum printed as VCC+0.3V, not a fixed number | 2 | ||
| BAT pin voltage | BAT | -0.3 | 7 | V | 2 | ||
| CHRG pin voltage | CHRG | -0.3 | 10 | V | 2 | ||
| BAT pin current | 800 | mA | 2 | ||||
| PROG pin current | 800 | uA | 2 | ||||
| Maximum junction temperature | 145 | ℃ | 2 | ||||
| Operating ambient temperature range | 0 | 85 | ℃ | 2 | |||
| Storage temperature range | -65 | 125 | ℃ | 2 | |||
| Lead temperature (soldering) | 260 | ℃ | Soldering time 10s | 2 | |||
| Battery drain current with input removed | Ibat | 2 | uA | Input power (AC adapter or USB) removed | 1 |
CAD (KiCad official)
- Symbol:
PT4054 - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5L (KiCad packages3D, STEP)
- 3D model files:
pt4054-etched.step/pt4054-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);pt4054.step/pt4054.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: PUOLOP datasheet (7 pp, sha256
8955c6e22667d936, retrieved 2026-10-19, 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: 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).