Intersil introduces high-input voltage battery charger

Tag : Li Battery Charger

Intersil has introduced the ISL9301. This high-input voltage battery charger can safely handle input voltages up to 28V. High overvoltage protection is achieved through the ISL9301's high input voltage and integrated overvoltage protection circuit that enables an automatic shutdown feature when input voltages exceed 10.5V during normal operation. The ISL9301 also features dynamic power path management to optimise charge and system currents. With multiple power paths, one for charging and another for device operation, the ISL9301 enables simultaneous charging and powering of any handheld device operating from a single cell Li-ion battery. This feature allows immediate operation of cell phones, PDAs and MP3 players even when the battery is fully discharged.

The power path feature in the ISL9301 also allows the charge to terminate when the battery is full while continuing to supply the system with the requested power. This minimises unnecessary charge and discharge cycles and improves battery life. The ISL9301 also extends a battery disconnect function that prevents any leakage or battery drain when the handheld device is not in use. This feature helps to maximise battery life. The ISL9301 is available now in a 10-lead DFN package.