概要

The ISL78693 is an integrated single-cell Li-ion or Li-polymer battery charger capable of operating with an input voltage as low as 2. 65V (cold crank case). This charger is designed to work with various types of AC adapters or a USB port. The ISL78693 operates as a linear charger when the AC adapter is a voltage source. The battery is charged in a Constant Current/Constant Voltage (CC/CV) profile. The charge current is programmable with an external resistor up to 1A. The ISL78693 can also work with a current-limited adapter to minimize the thermal dissipation. The ISL78693 features charge current thermal foldback to ensure safe operation when the printed circuit board’s thermal dissipation is limited due to space constraints. Additional features include preconditioning of an over-discharged battery, an NTC thermistor interface for charging the battery in a safe temperature range, and automatic recharge. The device is specified for operation in ambient temperatures from -40°C to +85°C and is offered in a 3x3mm thermally enhanced DFN package.

ISL78693 Functional Diagram
ISL78693 Functional Diagram
  • Complete charger for single-cell Lithium chemistry batteries
  • Integrated power transistor and current sensor
  • Reverse battery leakage 700nA
  • 1% initial voltage accuracy
  • Programmable CC current up to 1A
  • Charge current thermal foldback
  • NTC thermistor interface for battery temperature alert
  • Accepts CV and CC types of adapters or USB bus power
  • Preconditioning trickle charge
  • Guaranteed to operate down to 2.65V after start-up
  • Ambient temperature range: -40°C to +85°C
  • AEC-Q100 qualified

ドキュメント

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分類 タイトル 日時
データシート
ISL78693 Datasheet
PDF 1.01 MB
ホワイトペーパー
Selecting the Right Battery Chemistry for Automotive Safety Applications
PDF 158 KB
2件

設計・開発

ISL78693EVAL1Z Automotive LiFePO4 Battery Charger Eval Board

ISL78693EVAL1Z

Evaluation
詳しくはこちら

Automotive Single-Cell Lithium Iron Phosphate Battery Charger Evaluation Board

The ISL78693EVAL1Z evaluation board is used to evaluate the performance of the ISL78693 integrated single-cell automotive LiFePO4 battery charger. The onboard 8-bit DIP...

主要ドキュメント:
ISL78693EVAL1Z User Guide

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製品選択

    Processing table
    Pkg. Type
    Carrier Type
    Moisture Sensitivity Level (MSL)
    Price (USD) | 1ku
    ご購入 / サンプル
    型名
    ISL78693ARZ
    circle最終購入とりまとめ品
    memory
    spa
    view_in_ar
    サンプル入手可能
    		 DFN Tube 2 1.456 サンプルを入手,
    ISL78693ARZ-T
    circle最終購入とりまとめ品
    memory
    spa
    view_in_ar
    サンプル入手可能
    		 DFN Reel 2 サンプルを入手,
    ISL78693ARZ-T7A
    circle最終購入とりまとめ品
    memory
    spa
    view_in_ar
    サンプル入手可能
    今すぐ購入する
    		DFN Reel 2 サンプルを入手,
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