Switch Mode LiIon/Polymer Battery Charger

TheHM8207isaconstantcurrent,constantvoltageLi-IonbatterychargercontrollerthatusesacurrentmodePWMstep-down(buck)switchingarchitecture.Witha700kHzswitchingfrequency,theHM8207providesasmall,simpleandefficientsolutiontofastchargeone(4.2V)ortwo(8.4V)lithium-ionbatteries.