Battery-charger ICs prolong cell life

Microchip has entered the Li-ion battery charger market with three devices, each with novel feature sets for high-performance single-cell battery applications.

Microchip has entered the Li-ion battery charger market with three devices, each with novel feature sets for high-performance single-cell battery applications.

The MCP7382X family of battery chargers offers advanced battery management features that maximise battery life, reduce PCB footprint and minimise system cost.

The family is ideal for portable battery-powered applications such as wireless phones, pagers, personal digital assistants, audio players and cameras.

The devices offer a wide range of features including the ability to monitor charge current and temperature, and to indicate a constant-current to constant-voltage transition.

The devices are available in both 4.1 and 4.2V options to accommodate Li-ion batteries with coke or graphite anodes.

The battery chargers feature low shutdown (1mA) and operating current (250mA) to extend battery life and improve system efficiency.

Small SOT-23 and MSOP packages save board space while programmable charge current and external FET allow design flexibility.

The operating voltage range of the MCP7382X family is 4.5 to 5.5V and the temperature range is -20 to +85C.

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