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ISL6257 - Highly Integrated Narrow VDC Battery Charger

Datasheet Summary

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.

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Datasheet preview – ISL6257

Datasheet Details

Part number ISL6257
Manufacturer Intersil Corporation
File Size 495.67 KB
Description Highly Integrated Narrow VDC Battery Charger
Datasheet download datasheet ISL6257 Datasheet
Additional preview pages of the ISL6257 datasheet.

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Full PDF Text Transcription

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® 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.
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