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TP4054A
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YONGYUTAI Battery Management, SOT-23-5L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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TP4054A
YONGYUTAI · Battery Management · SOT-23-5L
TP4054A from YONGYUTAI, 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 that is pulled low while charging, goes high-impedance when charging is done or input is undervoltage, and should be tied to GND if the indicator is not used. |
| 2 | GND | power_in | Chip ground pin. |
| 3 | BAT | power_out | Battery connection pin that carries the charge current to the Li-ion cell, with the datasheet specifying a 4.2 V float voltage (VFLOAT) and built-in reverse-current protection from BAT to VDD. |
| 4 | VDD | power_in | Power input pin for the USB or adapter supply, with an operating range of 4.5 V to 6.0 V (5.0 V typical) and an absolute maximum of -0.3 V to 9 V. |
| 5 | PROG | passive | Charge current programming pin, where a resistor to GND sets the charge current (2 kΩ gives 500 mA, 3.3 kΩ gives 300 mA, 10 kΩ gives 100 mA) and the pin is regulated to 1.00 V in constant-current mode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | YONGYUTAI |
| 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 |
|---|---|---|---|---|---|---|---|
| VDD 工作电压 (VDD operating voltage) | VDD | 4.5 | 5 | 6 | V | 4 | |
| 输入电源电流, 充电模式 (Input supply current, charge mode) | IVDD-IBAT | 150 | 360 | uA | Charge mode (RPROG=4K) | 4 | |
| 输入电源电流, 待机模式 (Input supply current, standby, charge terminated) | IVDD-IBAT | 75 | 180 | uA | Standby mode (charge terminated) | 4 | |
| 输入电源电流, 停机模式 (Input supply current, shutdown) | IVDD-IBAT | 100 | uA | RPROG unconnected, VDD<VBAT, VDD<VUVLO; CE=GND, OVP | 4 | ||
| VDD 欠压闭锁门限 (VDD undervoltage lockout threshold) | VUV | 3 | 3.7 | 4.2 | V | VDD low to high | 4 |
| 恒流时 PROG 电压 (PROG voltage in constant current) | VPROG2 | 0.9 | 1 | 1.1 | V | VDD=5V, RPROG=4K | 4 |
| BAT 端充电电流 (BAT charge current) | IBAT | 450 | 500 | 550 | mA | VDD=5V; VBAT=3.9V; RPROG=2K | 4 |
| BAT 端充电电流 (BAT charge current) | IBAT | 270 | 300 | 330 | mA | VDD=5V; VBAT=3.9V; RPROG=3.3K | 4 |
| BAT 端充电电流 (BAT charge current) | IBAT | 90 | 100 | 110 | mA | VDD=5V; VBAT=3.9V; RPROG=10K | 4 |
| 电池漏电流, VDD 悬空或接地 (Battery leakage current, VDD floating or grounded) | 0.1 | 3 | uA | VDD floating or grounded, VBAT=4.0V | 4 | ||
| 涓流充电电流 (Trickle charge current) | ITRIKL | 35 | 50 | 65 | mA | VBAT<VTRIKL, RPROG=2K | 4 |
| C/10 充电终止电流 (C/10 charge termination current) | ITERM | 35 | 50 | 65 | mA | RPROG=2K | 4 |
| 涓流充电检测电压 (Trickle charge detection voltage) | VTRKL | 2.8 | 2.9 | 3 | V | VBAT low to high | 4 |
| 充满检测电压 (Full-charge detection voltage) | VFLOAT | 4.158 | 4.2 | 4.242 | V | VDD=5V, RPROG=2K | 4 |
| 充满检测延时 (Full-charge detection delay) | TDELAY | 0.6 | 1.5 | 3 | ms | IBAT falls below 0.1ICHR | 4 |
| 再充电检测延时 (Recharge detection delay) | TECHARGE | 0.6 | 1.5 | 3 | ms | 4 | |
| CHRG 引脚输出低电平 (CHRG output low voltage) | VCHRGL | 50 | 100 | mV | ICHRG=5mA | 4 | |
| VDD 管脚输入电压 (VDD input pin voltage) | -0.3 | 9 | V | 3 | |||
| CHRG 管脚输入电压 (CHRG input pin voltage) | -0.3 | 9 | V | 3 | |||
| BAT 管脚输入电压 (BAT input pin voltage) | -0.3 | 9 | V | 3 | |||
| PROG 管脚输入电压 (PROG input pin voltage) | -0.3 | 9 | V | 3 | |||
| 工作环境温度 (Operating ambient temperature) | -40 | 85 | ℃ | 3 | |||
| 最大结温度 (Maximum junction temperature) | 150 | ℃ | 3 | ||||
| 存储温度 (Storage temperature) | -55 | 150 | ℃ | 3 | |||
| 封装热阻 结到环境 (Package thermal resistance, junction to ambient) | RthJA | 190 | ℃/W | 3 | |||
| ESD 人体模式 (ESD HBM) | -2 | 2 | KV | 3 |
CAD (KiCad official)
- Symbol:
TP4054A - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5L (KiCad packages3D, STEP)
- 3D model files:
tp4054a-etched.step/tp4054a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tp4054a.step/tp4054a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: YONGYUTAI datasheet (8 pp, sha256
b1a31f1fa8b21e68, retrieved 2026-10-17, 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: 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).
# TP4054A
**YONGYUTAI** · Battery Management · SOT-23-5L
TP4054A from YONGYUTAI, 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 that is pulled low while charging, goes high-impedance when charging is done or input is undervoltage, and should be tied to GND if the indicator is not used. |
| 2 | GND | power_in | Chip ground pin. |
| 3 | BAT | power_out | Battery connection pin that carries the charge current to the Li-ion cell, with the datasheet specifying a 4.2 V float voltage (VFLOAT) and built-in reverse-current protection from BAT to VDD. |
| 4 | VDD | power_in | Power input pin for the USB or adapter supply, with an operating range of 4.5 V to 6.0 V (5.0 V typical) and an absolute maximum of -0.3 V to 9 V. |
| 5 | PROG | passive | Charge current programming pin, where a resistor to GND sets the charge current (2 kΩ gives 500 mA, 3.3 kΩ gives 300 mA, 10 kΩ gives 100 mA) and the pin is regulated to 1.00 V in constant-current mode. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | YONGYUTAI |
| 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 |
|---|---|---|---|---|---|---|---|
| VDD 工作电压 (VDD operating voltage) | VDD | 4.5 | 5 | 6 | V | | 4 |
| 输入电源电流, 充电模式 (Input supply current, charge mode) | IVDD-IBAT | | 150 | 360 | uA | Charge mode (RPROG=4K) | 4 |
| 输入电源电流, 待机模式 (Input supply current, standby, charge terminated) | IVDD-IBAT | | 75 | 180 | uA | Standby mode (charge terminated) | 4 |
| 输入电源电流, 停机模式 (Input supply current, shutdown) | IVDD-IBAT | | | 100 | uA | RPROG unconnected, VDD<VBAT, VDD<VUVLO; CE=GND, OVP | 4 |
| VDD 欠压闭锁门限 (VDD undervoltage lockout threshold) | VUV | 3 | 3.7 | 4.2 | V | VDD low to high | 4 |
| 恒流时 PROG 电压 (PROG voltage in constant current) | VPROG2 | 0.9 | 1 | 1.1 | V | VDD=5V, RPROG=4K | 4 |
| BAT 端充电电流 (BAT charge current) | IBAT | 450 | 500 | 550 | mA | VDD=5V; VBAT=3.9V; RPROG=2K | 4 |
| BAT 端充电电流 (BAT charge current) | IBAT | 270 | 300 | 330 | mA | VDD=5V; VBAT=3.9V; RPROG=3.3K | 4 |
| BAT 端充电电流 (BAT charge current) | IBAT | 90 | 100 | 110 | mA | VDD=5V; VBAT=3.9V; RPROG=10K | 4 |
| 电池漏电流, VDD 悬空或接地 (Battery leakage current, VDD floating or grounded) | | | 0.1 | 3 | uA | VDD floating or grounded, VBAT=4.0V | 4 |
| 涓流充电电流 (Trickle charge current) | ITRIKL | 35 | 50 | 65 | mA | VBAT<VTRIKL, RPROG=2K | 4 |
| C/10 充电终止电流 (C/10 charge termination current) | ITERM | 35 | 50 | 65 | mA | RPROG=2K | 4 |
| 涓流充电检测电压 (Trickle charge detection voltage) | VTRKL | 2.8 | 2.9 | 3 | V | VBAT low to high | 4 |
| 充满检测电压 (Full-charge detection voltage) | VFLOAT | 4.158 | 4.2 | 4.242 | V | VDD=5V, RPROG=2K | 4 |
| 充满检测延时 (Full-charge detection delay) | TDELAY | 0.6 | 1.5 | 3 | ms | IBAT falls below 0.1ICHR | 4 |
| 再充电检测延时 (Recharge detection delay) | TECHARGE | 0.6 | 1.5 | 3 | ms | | 4 |
| CHRG 引脚输出低电平 (CHRG output low voltage) | VCHRGL | | 50 | 100 | mV | ICHRG=5mA | 4 |
| VDD 管脚输入电压 (VDD input pin voltage) | | -0.3 | | 9 | V | | 3 |
| CHRG 管脚输入电压 (CHRG input pin voltage) | | -0.3 | | 9 | V | | 3 |
| BAT 管脚输入电压 (BAT input pin voltage) | | -0.3 | | 9 | V | | 3 |
| PROG 管脚输入电压 (PROG input pin voltage) | | -0.3 | | 9 | V | | 3 |
| 工作环境温度 (Operating ambient temperature) | | -40 | | 85 | ℃ | | 3 |
| 最大结温度 (Maximum junction temperature) | | | | 150 | ℃ | | 3 |
| 存储温度 (Storage temperature) | | -55 | | 150 | ℃ | | 3 |
| 封装热阻 结到环境 (Package thermal resistance, junction to ambient) | RthJA | | 190 | | ℃/W | | 3 |
| ESD 人体模式 (ESD HBM) | | -2 | | 2 | KV | | 3 |
## CAD (KiCad official)
- Symbol: `TP4054A`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5L (KiCad packages3D, STEP)
- 3D model files: `tp4054a-etched.step` / `tp4054a-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tp4054a.step` / `tp4054a.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [YONGYUTAI datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603406917952167936) (8 pp, sha256 `b1a31f1fa8b21e68`, retrieved 2026-10-17, 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:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-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).
[Datasheet PDF](docs/tp4054a-datasheet.pdf)