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ISL6291 - Li-ion/Li Polymer Linear Battery Charger

Description

VIN is the input power source pin that is connected to a wall adapter.

V2P8 is a 2.8V reference voltage output.

V2P8 pin outputs a 2.8V voltage when the input voltage rises above the POR threshold and outputs zero voltage otherwise.

Features

  • Integrated Linear Pass Element.
  • Integrated Charge Current Sensor.
  • No External Reverse Blocking Diode Required.
  • 1% Voltage Accuracy.
  • Programmable Current Limit Up to 2.0A.
  • Programmable End-of-Charge Current.
  • Trickle Charge an Over Discharged Battery.
  • Charge Current Thermal Foldback.
  • Simple Interface for Low-Cost Thermistor.
  • Accepts USB Bus Power.
  • Ambient Temperature Range: -20oC to 70oC.
  • T.

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Datasheet preview – ISL6291

Datasheet Details

Part number ISL6291
Manufacturer Intersil Corporation
File Size 279.62 KB
Description Li-ion/Li Polymer Linear Battery Charger
Datasheet download datasheet ISL6291 Datasheet
Additional preview pages of the ISL6291 datasheet.

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Full PDF Text Transcription

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® ISL6291 Data Sheet November 2003 FN9102.1 Li-ion/Li Polymer Linear Battery Charger The ISL6291 provides a low-cost integrated charger solution for single-cell Li-ion and Li Polymer rechargeable batteries. No external pass element, current sensing resistor, or reverse blocking diode is required with this solution. The ISL6291 is a constant-current (CC)/constant-voltage (CV) charger. The constant charge current is programmable up to 2.0A with an external signal resistor. An internal trimmed current-sense circuit guarantees 10% accuracy, with no bulky external current-sense resistor. The constant voltage is either 4.1V or 4.2V.
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