TP4057 4.2V LITHIUM-ION BATTERY CHARGER IC SOT-23-6

The TP4057 is a popular and easy-to-use Lithium Ion battery charger IC, ideally suited for various applications that require charging single-cell Lithium Ion batteries up to 4.2V. Here’s a breakdown of its functionalities, key features, and technical specifications.

The TP4057 is a linear charger IC that offers a simple and cost-effective solution for charging Lithium Ion batteries. It manages the charging process by providing constant current until the battery reaches its preset voltage (typically 4.2V) and then switches to a trickle charge mode to maintain the battery level.

Key Features of TP4057 Battery Charging IC :

• • Compact size: Packaged in a tiny SOT-23-6 footprint, making it ideal for space-constrained applications.
  • Easy to use: Requires minimal external components for operation.
  • Lithium Ion battery protection: Includes features like overcharge protection, thermal overload protection, and reverse battery protection.
  • Adjustable charging current: The charging current can be programmed using an external resistor, allowing you to tailor it to the capacity of your battery.
  • Preset charging voltage: The charging voltage is internally fixed at 4.2V, ensuring safe and proper charging of Lithium Ion batteries.
  • Automatic charging: Initiates and terminates the charging process automatically, simplifying battery management.

Technical Specifications of TP4057 Battery Charging IC:

• • Input voltage range: Typically between 4.5V and 9V (consult datasheet for specific range).
  • Battery voltage regulation: 4.2V ± 1% (preset)
  • Charging current: Programmable up to 1A (adjustable via external resistor)
  • Standby current: Less than 40uA (very low power consumption when not charging)
  • Operating temperature: -40°C to +85°C

Applications of TP4057 Battery Charging IC:

• • Portable electronics: Ideal for charging Lithium Ion batteries in smartphones, tablets, cameras, and other portable devices.
  • Power banks: Can be used in power bank circuits to manage the charging process for external devices.
  • DIY battery charging projects: Well-suited for hobbyist projects or educational purposes due to its ease of use.

Package Includes:

• • 1 x TP4057 4.2V Lithium Ion Battery Charger ic SOT-23-6