ISL6251 – Battery Charger Controller

Part Number: ISL6251

Function: Low Cost Multi-Chemistry Battery Charger Controller

Package: QFN 28, QSOP 24 Pin Type

Manufacturer: Intersil

Image and Pinouts:

ISL625 datasheet


The ISL6251, ISL6251A is a highly integrated battery charger controller for Li-Ion/Li-Ion polymer batteries and NiMH batteries. High Efficiency is achieved by a synchronous buck topology and the use of a MOSFET, instead of a diode, for selecting power from the adapter or battery. The low side MOSFET emulates a diode at light loads to improve the light load efficiency and prevent system bus boosting.


• Programmable Charge Current Limit, Adapter Current Limit and Charge Voltage

• Fixed 300kHz PWM Synchronous Buck Controller with Diode Emulation at Light Load

• Output for Current Drawn from AC Adapter

• AC Adapter Present Indicator

• Fast Input Current Limit Response

• Input Voltage Range 7V to 25V

• Supports 2, 3 and 4 Cells Battery Pack

Other data sheets are available within the file:

ISL625, ISL6251A, ISL6251HRZ, ISL6251HAZ,



ISL6251 Datasheet

ISL625 pdf

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