M62253

his tric lim es;T e Notic e param Som . ALY ation N nge. I ecific ct to cha M p s I l L fina ubje P R E is not a its are s MITSUBISHI(Dig.Ana.INTERFACE) M62253FP LITHIUM ION BATTERY CHARGER CONTROL IC GENERAL DESCRIPTION The M62253FP is a charge controller designed for charging lithium ion batteries. The IC has a current and voltage control circuit allowing the constant current/voltage charging to lithium ion batteries. A charger system for lithium ion batteries can be easily designed by utilizing the IC`s following functions ; charge disabling function for an over discharged battery charge control function by detecting the battery temperature PIN CONFIGURATION(TOP VIEW) TIN 1 Vref 3 VDD 4 Vcc 5 LED1 6 LED2 7 14 OUT M62253FP C3 2 13 SENSE+ 12 SENSE 11 VSENSE 10 GND 9 8 C2 C1 FEATURES Constant current and voltage charging Charge disabling functions for an over discharged battery and a high/low temperature battery Recharging function 2 LED driving circuits to Indicate charging conditions Delay circuit to prevent chattering Outline 14P2N-A APPLICATION Lithium ion battery charger for digital equipment BLOCK DIAGRAM Vref VDD Std. VOLTAGE C1 Vcc 4.1V to 3.9V Incorrect detect prohibition circuit OE OUT Fixed current control circuit ISET ISENSE+ ISENSE- OUT SENSE+ 3.0V OE OUT Fixed voltage control circuit VSET VSENSE SENSEVSENSE 2.6V LED2 LED1 Incorrect detect prohibition circuit Incorrect detect prohibition circuit Current detect circuit 1.6...