SMBus 1-4 cell Buck battery charge controller to support hybrid power boost mode
製品の詳細
パラメータ
パッケージ｜ピン｜サイズ
特長
- Industrial Innovative Charge Controller With Hybrid Power Boost Mode
- Adapter and Battery Provides Power to System Together for Intel® CPU Turbo Mode
- Ultra-Fast Transient Response of 150 µs to Enter Boost Mode
- Hybrid Power Boost Mode from 4.5- to 24-V System
- Charge 1- to 4-Cell Battery Pack from 4.5- to 24-V Adapter
- High Accuracy Power and Current Monitoring for CPU Throttling
- Comprehensive PROCHOT Profile
- ± 2% Current Monitor Accuracy
- ± 5% System Power Monitor Accuracy (PMON)
- Automatic NMOS Power Source Selection from Adapter or Battery
- ACFET Fast Turn on in 100 µs
- Programmable Input Current, Charge Voltage, Charge and Discharge Current Limit
- ±0.4% Charge Voltage (16-mV step)
- ±2% Input Current (128-mA/step)
- ±2% Charge Current (64-mA/step)
- ±2% Discharge Current (512-mA/step)
- High Integration
- Battery LEARN Function
- Battery Present Monitor
- Boost Mode Indicator
- Loop Compensation
- BTST Diode
- Enhanced Safety Features for Overvoltage Protection, Overcurrent Protection, Battery, Inductor, and MOSFET Short-Circuit Protection
- Switching Frequency: 600 kHz, 800 kHz, and
1 MHz - Realtime System Control on ILIM Pin to Limit Charge and Discharge Current
- 0.65 mA Adapter Standby Quiescent Current for Energy Star
All trademarks are the property of their respective owners.
概要
The bq24780S device is a high-efficiency, synchronous battery charger, offering low component count for space-constrained, multi-chemistry battery charging applications.
The bq24780S device supports hybrid power boost mode (previously called "turbo boost mode"). It allows battery discharge energy to system when system power demand is temporarily higher than adapter maximum power level. Therefore, adapter does not crash.
The bq24780S device uses two charge pumps to separately drive N-channel MOSFETs (ACFET, RBFET, and BATFET) for automatic system power source selection.
Through SMBus, system power management microcontroller programs input current, charge current, discharge current, and charge voltage DACs with high regulation accuracies.
The bq24780S device monitors adapter current (IADP), battery discharge current (IDCHG), and system power (PMON) for host to throttle back CPU speed or reduce system power when needed.
The bq24780S device charges 1-, 2-, 3-, or 4-series Li+ cells.
機能およびピン配置は同じだが、同等ではない比較製品
技術資料
| 種類 | タイトル | 英語版のダウンロード | 日付 | |
|---|---|---|---|---|
| * | データシート | bq24780S 1- to 4-Cell Hybrid Power Boost Mode Battery Charge Controller With Power and Processor Hot Monitoring データシート | 2017年 3月 20日 | |
| 技術記事 | When to use rechargeable batteries in small battery applications | 2019年 10月 1日 | ||
| 技術記事 | Understanding battery charger features and charging topologies | 2016年 9月 19日 | ||
| 技術記事 | Selecting the right battery charger for industrial applications | 2016年 7月 13日 | ||
| 技術記事 | Should I use a linear charger or a switching charger? | 2015年 10月 30日 | ||
| ユーザー・ガイド | bq24780S EVM user's guide | 2015年 4月 8日 |
設計と開発
追加の事項や他のリソースを参照するには、以下のタイトルをクリックすると、詳細ページを表示できます。ハードウェア開発
概要
The bq24780S evaluation module (EVM) is a complete charger module for evaluating the high-efficiency, synchronous, 1-4 cell turbo boost mode battery charge controller with power monitoring and /PROCHOT for CPU throttling, charges one, two, three or four series Li-ion and Li-polymer cells used in (...)
特長
- Input voltage range: 4.5V to 24V;
- SMB communication;
- LED indication for status signals
- Test points for key signals available for testing purposes;
- Jumpers for different circuit configuration.
ソフトウェア開発
特長
- Real-time Gauge Dashboard for monitoring basic registers
- Full register access and logging
- Full data memory access and logging
- Product configuration and monitoring tools
- Import and export of product configurations
- Calibration and test automation
- Export of FS files for the target production environment
リファレンス・デザイン
設計ファイル
-
download TIDA-00657 Assembly Drawing.pdf (293KB) -
download TIDA-00657 PCB.pdf (1887KB) -
download TIDA-00657 CAD Files.zip (717KB) -
download TIDA-00657 Gerber.zip (969KB) -
download TIDA-00657 BOM.pdf (174KB)
CAD/CAE シンボル
| パッケージ | ピン数 | ダウンロード |
|---|---|---|
| WQFN (RUY) | 28 | オプションの表示 |
購入と品質
- RoHS
- REACH
- デバイスのマーキング
- リード端子の仕上げ / ボールの原材料
- MSL rating/ リフローピーク温度
- MTBF/FIT の推定値
- 原材料組成
- 認定試験結果
- 継続的な信頼性モニタ試験結果
おすすめの製品には、この TI 製品に関連するパラメータ、評価モジュール、またはリファレンス・デザインが含まれている場合があります。