Specification for fs4061a boost 8.4v charging IC chip and fs4061b boost 12.6V charging IC chip datasheet

       FS4061A Switch type 8.4V Two lithium ions / lithium Polymer battery charging management chip ,FS4061B Switch type 12.6V Two lithium ions / lithium Polymer battery charge management chip is very suitable for portable battery Charging management application of mobile devices . Collector voltage and current Flow regulator 、 Precharge 、 Charge state indication and charge cut-off Adapter adaptation and other functions in one , use SOP-8 encapsulation . Charging the battery is divided into three stages ： pre charge （ Pre-charge ）、 constant current （CC/Constant Current）、 Constant voltage （CV/Constant Voltage） The process . Integrated overvoltage and overcurrent protection , Ensure the of the cell Security .

Brief description of functional characteristics . 5V Input switch boost charging IC . Suitable for two or three lithium ion batteries / Lithium polymer high Efficiency current mode PWM The charger . 1％ Charging voltage control accuracy . Soft start . Input adapter adaptation . Switching frequency 200KHz . LED State of charge indication . Battery charging overvoltage protection . Maximum withstand voltage of input pin 5.5V . Working environment temperature range ：-20 ℃～ 70 ℃ . SOP8 encapsulation FS4061A Charge two lithium batteries IC FS4061B Charge three lithium batteries IC The following is a 8.4V/12.6V Charging circuit application diagram .

The following are two series of lithium battery protection IC Circuit diagram