BQ21040EVM-777
BQ21040 0.8A、シングル入力、シングルセル・リチウムイオン・バッテリ・チャージャの評価モジュール
BQ21040EVM-777
概要
The bq2404x series of devices are highly integrated Li-ion linear charger devices targeted at space-limited portable applications. The devices operate from either a USB port or AC adapter and has a single power output that charges the battery. A system load can be placed in parallel with the battery as long as the average system load does not keep the battery from charging fully during the 10 hour safety timer. The charger power stage and charge current sense functions are fully integrated. The charger function has high-accuracy current and voltage regulation loops, charge status display, and charge termination. The pre-charge current and termination current threshold are programmed via an external resistor on the bq24040. The fast charge current value is also programmable via an external resistor.
特長
- 5-V input operates from either USB port or AC adapter
- Single power output with 1% battery voltage regualtion accuracy
- 4.2V Li-Ion and Li-Pol Charger
- 6.6V overvoltage protection; 125 C thermal regualtion; 10 hour fixed safety timer
- Available in small SOT-23 package
バッテリ・チャージャ IC
購入と開発の開始
BQ21040EVM-777 — BQ21040 0.8A、シングル入力、シングルセル・リチウムイオン・バッテリ・チャージャの評価モジュール
技術資料
| 種類 | タイトル | 英語版のダウンロード | 日付 | |||
|---|---|---|---|---|---|---|
| * | EVM ユーザー ガイド (英語) | bq21040 0.8-A Single-Input, Single-Cell Li-Ion Battery Charger EVM User's Guide | 2016年 3月 21日 | |||
| 証明書 | BQ21040EVM-777 EU Declaration of Conformity (DoC) | 2019年 1月 2日 |