Datasheet ISL6257HRZ - Intersil V DC BATTERY CHARGER, 7~25 V, 28QFN

Intersil ISL6257HRZ

Part Number: ISL6257HRZ

Detailed Description

Manufacturer: Intersil

Description: V DC BATTERY CHARGER, 7~25 V, 28QFN

Docket:
®
ISL6257
Data Sheet January 17, 2007 FN9288.2
Highly Integrated Narrow VDC Battery Charger for Notebook Computers
The ISL6257 is a highly integrated battery charger controller for Li-Ion/Li-Ion polymer batteries.

ISL6257 is designed for Narrow VDC applications where the system power source is either the battery pack or the regulated output of the charger. This makes the max voltage to the system equal to the max battery voltage instead of the max adapter voltage. Operating at lower system voltage can improve overall efficiency. High efficiency is achieved in the charger with a synchronous buck topology. The low-side MOSFET emulates a diode at light loads to improve the light load efficiency and prevent system bus boosting. The constant output voltage can be selected for 2, 3 and 4 series Li-Ion cells with ±0.5% accuracy over temperature. It can also be programmed between 4.2V + 5% per cell and 4.2V - 5% per cell to optimize battery capacity. When supplying the load and battery charg

Specifications:

Base Number: 6257
Battery Charge Voltage: 17.64 V
Battery IC Case Style: QFN
Battery Management Function: Charger
Battery Type: Li-Ion / Li-Polymer
Input Voltage Max: 25 V
Input Voltage: 25 V
Mounting Type: SMD
Number of Pins: 28
Number of Series Cells: 4
Operating Temperature Range: -10°C to +100°C
Output Voltage Max: 17.64 V
Package / Case: QFN
SVHC: No SVHC (15-Dec-2010)
Supply Voltage Range: 7 V to 25 V

RoHS: Yes