TP4054 SMD IC Lithium battery charger SOT-23-5 TPOWER 0.6A TP4054

Product Overview:

The UMW TP4054 is a compact, single-chip linear battery management integrated circuit specifically designed for constant current and constant voltage charging of single-cell lithium-ion batteries. It is optimized for use with USB power sources and requires minimal external components, making it ideal for portable devices.

Core Specifications:

• Manufacturer: UMW (UTD Semiconductor)

• Package Type: SOT-23-5

• Function: Linear Lithium-Ion Battery Charger

• Charging Voltage: Fixed at 4.2V

• Max Charging Current: Up to 500mA (set via external resistor)

Features:

• USB Optimized: Designed to operate effectively within standard USB power specifications.

• Automatic Termination: Automatically ends the charging cycle when the charging current drops to 1/10th of the programmed value.

• Thermal Regulation: Includes thermal feedback to automatically regulate the charging current and prevent the chip from overheating.

• Protection: Features input low-voltage lockout and reverse-connection protection to prevent battery damage.

• Low Power Mode: Can be set to a standby state to reduce supply current to 25µA.

Applications:

• Portable Electronics: Commonly used in cellular phones, MP3 players, and small handheld devices.

• USB-Powered Gadgets: Ideal for any compact device requiring safe, regulated charging from a USB port.

• Battery-Powered Modules: Suitable for integrated battery management in small wireless sensors or consumer electronics.