1 Features
Input voltage range 4.6V~32V Input overvoltage protection
- FM4057 overvoltage protection voltage is 6.5V
- FM4057B supports high voltage charging
External resistor adjusts charging current, supports up to 1A charging
current
With constant temperature charging function, over temperature automatically adjusts the charging current
Supports 4.2V, 4.35V, 4.4V battery types
LED display charging status, support two-color light display Built-in MOSFET, with anti-backflow function trickle/constant current/constant voltage charging
Output overcurrent, overvoltage, short circuit protection
Input overvoltage and undervoltage protection
OTP over temperature protection
4KV ESD Characteristics
