LTC1731ES8-4.2#TRPBF - Linear Technology

The LTC1731ES8-4.2#TRPBF is a highly integrated and efficient single-cell lithium-ion battery charger IC produced by Linear Technology. This compact and robust power management solution is designed to extend the life and enhance the performance of rechargeable lithium-ion batteries. Its precise charging capabilities make it an ideal choice for portable electronic devices such as smartphones, tablets, digital cameras, and other battery-powered gadgets.

With an input voltage range of 4.5V to 10V, the LTC1731ES8-4.2#TRPBF can accommodate a variety of power sources, including AC adapters and USB ports. The charging voltage is fixed at 4.2V, which is the optimal charging voltage for most single-cell lithium-ion batteries, ensuring a full and safe charge every time.

The LTC1731ES8-4.2#TRPBF features an automatic recharge function that initiates a new charging cycle if the battery voltage falls below a certain threshold, ensuring the battery remains fully charged. Additionally, it includes safety features such as overcurrent protection, thermal regulation, and under-voltage lockout, which protect both the charger and the battery during adverse conditions.

This charger IC is also notable for its charge current programmability, which allows users to set the charge current from 1mA to 1A using a single external resistor. This flexibility makes the LTC1731ES8-4.2#TRPBF suitable for charging batteries of various capacities, from small wearable devices to larger portable electronics.

The LTC1731ES8-4.2#TRPBF comes in a compact 8-lead SOIC package, which is ideal for space-constrained applications. Its small footprint and low profile make it easy to integrate into a wide range of electronic devices without adding significant bulk or weight.

In summary, the LTC1731ES8-4.2#TRPBF from Linear Technology is a versatile and reliable charging solution that offers precision, safety, and flexibility for single-cell lithium-ion battery applications. Its programmable charge current and comprehensive protection features make it a top choice for designers looking to maximize battery performance and longevity in portable devices.