Charger-detection prevents IC over-voltage in portable apps
FAIRCHILD SEMICONDUCTOR FAN3988 joins family of charger front-end integrated circuits designed to provide Li-ion batteries protection from failures of the charging circuit. Device has built-in automatic detection allowing the device to sense the presence of a USB charger by continuously monitoring the D+ / D- lines for a shorted condition. In addition the device also monitors the VBUS for an over or under voltage condition. Device is packaged in an ultra-compact 6-lead MicroPak MLP and utilizes lead-free (Pb-free) terminals.