STEVAL-ISB003V1, Demonstration Board based on USB Li-Ion Battery Charger based on the Microcontroller ST7260E2
STMicroelectronics の部品 ST890BDR を使用したリファレンス デザイン
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最終製品向け
- MP3 Player
- Portable
説明
- STEVAL-ISB003V1, Demonstration Board is an USB based single cell Li-Ion battery charger which consists of the ST7260E2-based low-speed USB controller and the ST7LIT15BY0-based battery charger. This board includes a power selector circuit to select the appropriate power supply source and a step-up converter circuit based on the L6920 device to provide a fixed output voltage to the USB controller. The power supply for the battery charger controller is generated from TL1431 keeping in mind the accuracy requirement for charging. An additional current-limiter is also included in series with a USB power supply to show any incorrect behavior using a status LED. A provision is provided on demonstration board such that any external low-speed USB controller can control the charger operation, hence this system can be used with any low-speed USB controller
主な特徴
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Battery TypeLithium-Ion
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Number of Battery Cells1
注目のパーツ (4)
| 部品番号 | メーカー | タイプ | 説明 | |||
|---|---|---|---|---|---|---|
|
L6920DBTR | STMicroelectronics | DC to DC Converter and Switching Regulator Chip | Conv DC-DC 0.8V to 5.5V Synchronous Step Up Single-Out 1.8V to 5.2V/3.3V/5V 8-Pin MSOP T/R | 買う | |
|
STM1061N25WX6F | STMicroelectronics | Supervisory Circuits | Processor Supervisor 2.5V 1 Active Low/Open Drain 3-Pin SOT-23 T/R | 買う | |
|
|
L6920DCTR | STMicroelectronics | DC to DC Converter and Switching Regulator Chip | Conv DC-DC 0.8V to 5.5V Synchronous Step Up Single-Out 1.8V to 5.5V 0.45A 8-Pin MSOP T/R | 買う | |
|
ST890BDR | STMicroelectronics | Current Limit Switches | Power Switch Hi Side 1-OUT 1.2A 0.09Ohm 8-Pin SO N T/R | 買う | |