概要

The ISL9220IRTZEVAL1Z evaluation board is used to evaluate the ISL9220 battery charger for 1-cell Li-ion and Li-polymer batteries.

The device features synchronous PWM technology, maximizing power efficiency, thus minimizing charge time and heat. The 1.2MHz switching frequency allows use of small external inductors and capacitors. A simple charge current programming method is provided. External resistors program the fast charge and end-of-charge currents. The two status outputs can be used to drive LEDs, or can be connected to a host processor. A programmable charge timer provides the ability to detect defective batteries and provides a secondary method of detecting charge termination. A thermistor interface is provided for battery presence detection and for temperature qualified charging conditions. Additional features include preconditioning of an over-discharged battery, automatic recharge and a thermally enhanced QFN package.

ISL9220IRTZEVAL1Z Switching Charger Eval Board
ISL9220IRTZEVAL1Z Switching Charger Eval Board
  • Operating input voltage range: 4.5V to 14V
  • Up to 2A charge current
  • Two status outputs
  • 1.2MHz switching frequency
  • Connector, test point and jumper

アプリケーション

  • PDAs and smartphones
  • MP3 and portable media players
  • Handheld GPS devices
  • Digital still cameras
  • Industrial handheld scanners

ドキュメント

= ピックアップ
分類 タイトル 日時
マニュアル－開発ツール
ISL9220IRTZEVAL1Z User Guide
PDF 455 KB
データシート
ISL9220, ISL9220A Datasheet
PDF 810 KB
2 items

設計・開発

ソフトウェアダウンロード
分類 タイトル 日時
PCB設計ファイル
ISL9220IRTZEVAL1Z Design Files
ZIP 186 KB
1 item

製品選択

    Processing table
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    型名
    ISL9220IRTZEVAL1Z
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