ISL6256 Datasheet PDF

●The ISL6256, ISL6256A is a highlyintegrated battery charger controller for Li-Ion/Li-Ion polymer 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.

●Features

●• ±0.5% Charge Voltage Accuracy (-10°C to +100°C)

●• ±3% Accurate Input Current Limit

●• ±3% Accurate Battery Charge Current Limit

●• ±25% Accurate Battery Trickle Charge Current Limit

●• Programmable Charge Current Limit, Adapter Current

●Limit and Charge Voltage

●• Fixed 300kHz PWM Synchronous Buck Controller with

●Diode Emulation at Light Load

●• Overvoltage Protection

●• Output for Current Drawn from AC Adapter

●• AC Adapter Present Indicator

●• Fast Input Current Limit Response

●• Input Voltage Range 7V to 25V

●• Support 2-, 3- and 4-Cells Battery Pack

●• Up to 17.64V Battery-Voltage Set Point

●• Control Adapter Power Source Select MOSFET

●• Thermal Shutdown

●• Aircraft Power Capable

●• DC Adapter Present Indicator

●• Battery Discharge MOSFET Control

●• Less than 10µA Battery Leakage Current

●• Supports Pulse Charging

●• Pb-Free Plus Anneal Available (RoHS Compliant)

●Applications

●• Notebook, Desknote and Sub-notebook Computers

●• Personal Digital Assistant