多节锂电同步降压充电ic

Siweidianzi

General Description   The ZCC6688 is a 3A Li-Ion battery charger. It utilizesa 500KHz synchronous buck converter topology toreduce power dissipation during charging. Low powerdissipation, an internal MOSFET allow a physicallysmall charger that can be embedded in a wide rangeof handheld applications. The ZCC6688 includescomplete charge termination circuitry, automaticrecharge and a ±1% 4.2V /8.4V /12.6V /16.8V floatvoltage. Battery charge current, charge timeout and end-of- charge indication parameters are set with externalcomponents. Additional features include shorted celldetection; temperature qualified charging andovervoltage protection. The ZCC6688 is available in alow profile ESSOP10 package. Features  Input voltage range 4V~22V Dynamic input current allocation for maximumcharging rate 3.0A Maximum Charge Current No External MOSFETs and Blocking DiodeRequired Efficiency up to 90% Constant-Current/Constant-Voltage Operationwith Thermal Regulation to Maximize ChargeRate Without Risk of Overheating Optional Battery Temperature Monitoring Beforeand During Charge Automatic Sleep Mode forLow-Power Over Current Protection Consumption Available in ESSOP10 RoHS Compliant and 100% Lead (Pb)-Free ZCC6688 V2.3.pdf (1020.45 KB, 下载次数: 0)

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