Datasheet ISL6252AHRZ - Intersil BATTERY CHARGER CONTROLLER, QFN-28 — Datenblatt

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Manufacturer: Intersil

Description: BATTERY CHARGER CONTROLLER, QFN-28

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ISL6252, ISL6252A
Data Sheet July 19, 2007 FN6498.1
Highly Integrated Battery Charger Controller for Notebook Computers
The ISL6252, ISL6252A is a highly integrated battery charger controller for Li-Ion/Li-Ion polymer batteries.

High Efficiency is achieved by 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%/cell and 4.2V - 5%/cell to optimize battery capacity. When supplying the load and battery charger simultaneously, the input current limit for the AC adapter is programmable to within 3% accuracy to avoid overloading the AC adapter, and to allow the system to make efficient use of available adapter power for charging. It also has a wide range of programmable charging current. The ISL6252, ISL6252A provides outputs that are

Specifications:

• Base Number: 6252
• Battery Charge Voltage: 5.075 V
• Battery IC Case Style: QFN
• Battery Management Function: Charger, Status Monitor
• 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

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