TP4056
Every spec below is cited to the manufacturer datasheet. Pick your exact ordering code, compare the closest alternatives, then ask the assistant what it means for your design.
What the TP4056 family does
The TP4056 is a 1A linear lithium-ion battery charger designed for single-cell applications. It operates with a fixed 4.2V charging voltage and supports programmable currents up to 1000mA. Key features include a 35uA quiescent current in shutdown mode, thermal regulation to prevent overheating, and undervoltage lockout protection. The device eliminates the need for external MOSFETs or isolation diodes, simplifying portable product designs. It is typically used in mobile phones, MP3 players, digital cameras, and other battery-powered devices requiring efficient charging solutions.
TP4056 datasheet parameters
| Parameter | Min | Typ | Max | Conditions | Source |
|---|---|---|---|---|---|
| output voltage | 4.16 V | 4.2 V | 4.24 V | 0°C≤TA≤85°C, IBAT = 40mA; vfloat(float); ELECTRICAL CHARACTERISTICS | TopPower datasheet, p. 5 — ELECTRICAL CHARACTERISTICS |
| output current | — | 1 A | — | Constant current mode, RPROG = 1.2k | UTD datasheet, p. 6 — 9. Electrical characteristics |
| supply voltage range | 4 V | 5 V | 8 V | ●; vcc; ELECTRICAL CHARACTERISTICS | TopPower datasheet, p. 5 — ELECTRICAL CHARACTERISTICS |
| operating temperature | -40 °C | — | 85 °C | TopPower datasheet, p. 2 | |
| power dissipation (abs max) | — | — | 1.5 W | 6. Maximum Ratings (Note) | UTD datasheet, p. 4 — 6. Maximum Ratings (Note) |
| standby current | — | 50 µA | — | Input supply current, standby mode (charge termination) | UTD datasheet, p. 6 — 9. Electrical characteristics |
| output voltage low | — | 300 mV | 600 mV | ICHRG = 5mA; vchrg; ELECTRICAL CHARACTERISTICS | TopPower datasheet, p. 5 — ELECTRICAL CHARACTERISTICS |
| output count | — | 1 | — | UTD datasheet, p. 2 — Pin Description |