Linear Technology's LTC4063EDD#TRPBF

The LTC4063EDD#TRPBF is a highly integrated, standalone linear charger for lithium-ion batteries from Linear Technology, a leader in the design and manufacturing of high-performance analog integrated circuits. This product is designed to simplify the charging process for single-cell Li-ion batteries, and it comes packed with features that ensure both safety and efficiency in battery management systems.

Encased in a small 10-pin DFN (3mm x 3mm) package, the LTC4063EDD#TRPBF is ideal for portable applications where space is at a premium. It offers a programmable charge current up to 950mA, which allows for quick charging of the battery, and its charge current can be easily adjusted according to the needs of the specific application by setting a single external resistor.

The LTC4063EDD#TRPBF supports a wide range of input voltages from 4.25V to 6.5V, making it versatile for various power supply conditions. It also includes an internal thermal feedback that regulates the charge current to limit the die temperature during high power operation or high ambient temperature conditions. This feature ensures the longevity of the device by preventing overheating.

With its automatic recharge feature, the LTC4063EDD#TRPBF initiates a new charging cycle if the battery voltage falls below an internal threshold, keeping the battery topped off. Additionally, it has an end-of-charge control which signals when the battery is fully charged, and a C/10 charge termination, which ensures the battery is not overcharged, thus maintaining its health and safety.

Safety is a key concern when charging lithium-ion batteries, and the LTC4063EDD#TRPBF addresses this with its multiple safety features. It includes overvoltage protection, which prevents charging if the input voltage exceeds a specified maximum, and a timer termination, which ends the charge cycle after a predetermined time to prevent overcharging in case of abnormal conditions.

In summary, the LTC4063EDD#TRPBF is a compact, feature-rich, and reliable solution for charging single-cell lithium-ion batteries in portable applications. Its built-in safety mechanisms and programmable parameters make it an excellent choice for designers looking to integrate a straightforward yet powerful charging system into their products.