製品概要
概要
The STWBC-WA is STMicroelectronics’ wireless battery charger transmitter application optimized for wearable usage. Thanks to its 5 V native supply, the STWBC-WA device is ideal to operate with USB power supplies.Wireless battery charging systems replace the traditional power supply cable by means of electromagnetic induction between a transmitting pad or dongle (TX) and a battery-powered unit (RX), such as a smartwatch or sports gear.
The power transmitter unit is responsible for controlling the transmitting coil and generating the correct amount of power requested by the receiver unit. The receiver unit continuously provides the transmitter the correct power level requested, by modulating the transmitter carrier through controlled resistive or capacitive insertion. Generating the correct amount of power guarantees the highest level of end-to-end efficiency due to reduced energy waste. It also helps to maintain a lower operational temperature.
The digital wireless battery transmitter can adapt to the amount of energy transferred by the coil by modulating the frequency, duty cycles or coil input voltage.
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特徴
- Digital controller for wireless battery charger transmitters
- Optimized for < 3 W applications
- Smartwatches and healthcare
- Internet of Things (IoT) battery-powered smart devices
- Remote controllers
- Cost effective half-bridge topology with integrated drivers
- Optional full-bridge configuration for 3 W applications
- VIN range: 3 V to 5.5 V
- Supports USB VIN
- Active presence detector
- Parametric customization via graphical interface
- 2 firmware options:
- Turnkey solution for quick design
- APIs available for application customization
- Peripherals available via APIs
- ADC, with 10-bit precision
- UART
- I2C master fast/slow speed rate
- GPIOs
- Memory
- Flash and EEPROM with read-while-write (RWW) and Error Correction Code (ECC)
- Program memory: 32 Kbytes Flash; data retention: 15 years at 85 °C after 10 kcycles at 25 °C
- Data memory: 1 Kbyte true data EEPROM; data retention: 15 years at 85 °C after 100 kcycles at 85 °C
- RAM: 6 Kbytes
- Transmitter reference design:
- Evaluation board order code: STEVAL-ISB038V1T
- 2-layer PCBs
- Active object detection
- Graphical user interface for application monitoring
- Interoperable with receiver: STEVAL-ISB038V1R
- Operating temperature
- -40 °C up to 105 °C
- パッケージ
- VFQFPN32
おすすめ製品
注目ビデオ
ST's Wireless battery charging demo
All tools & software
All resources
| Resource title | Latest update |
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製品スペック (1)
| Resource title | Latest update | |||
|---|---|---|---|---|
| 31 Aug 2016 | 31 Aug 2016 |
ツール&ソフトウェア用アプリケーション・ノート (2)
| Resource title | Latest update | |||
|---|---|---|---|---|
| 20 Sep 2018 | 20 Sep 2018 | |||
| 13 Sep 2018 | 13 Sep 2018 |
フライヤ (2)
| Resource title | Latest update | |||
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| 28 Jun 2018 | 28 Jun 2018 | |||
| 26 Feb 2020 | 26 Feb 2020 |
パンフレット (2)
| Resource title | Latest update | |||
|---|---|---|---|---|
| 07 Apr 2021 | 07 Apr 2021 | |||
| 23 Nov 2020 | 23 Nov 2020 |
EDA Symbols, Footprints and 3D Models
STMicroelectronics - STWBC-WA
Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.
Symbols
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3D models
品質 & 信頼性
| 製品型番 | Marketing Status | パッケージ | グレード | RoHSコンプライアンスグレード | 材料宣誓書** |
|---|---|---|---|---|---|
| STWBC-WA | NRND | VFQFPN 32 5x5x1.0 mm | インダストリアル | Ecopack2 | |
| STWBC-WATR | NRND | VFQFPN 32 5x5x1.0 mm | インダストリアル | Ecopack2 |
(**) st.comで提供している材料宣誓書は、パッケージ･ファミリ内で最も一般的に使用されているパッケージに基づく汎用ドキュメントの場合があります。そのため、特定の製品では100%正確ではない可能性があります。特定の製品情報については、セールスサポートまでお問い合わせください
サンプル & 購入
| 製品型番 | 販売代理店から購入 | STから購入 | 製品ステータス | ECCN (US) | ECCN (EU) | 梱包タイプ | パッケージ | 温度（℃） | グレード | Country of Origin | Output Power (W) (typ) | Budgetary Price (US$)*/Qty | 詳細情報 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 最小 | 最大 | ||||||||||||||
| STWBC-WATR | 販売代理店に在庫がない場合は、STのセールス･オフィスまでお問い合わせください | NRND | 3A991A2 | NEC | Tape And Reel | VFQFPN 32 5x5x1.0 mm | -40 | 105 | Industrial | CHINA | 2.5 | 2.5125 / 1k | |||
| STWBC-WA | 3 distributors | NRND | 3A991A2 | NEC | Tray | VFQFPN 32 5x5x1.0 mm | -40 | 105 | Industrial | CHINA | 2.5 | 2.5125 / 1k | |||
製品ステータス
NRNDECCN (US)
3A991A2Budgetary Price (US$)*/Qty
2.5125 / 1k製品ステータス
NRNDECCN (US)
3A991A2Budgetary Price (US$)*/Qty
2.5125 / 1k（*）概算用の希望小売単価（US$）です。現地通貨でのお見積りについては、STのセールス･オフィスまたは販売代理店までお問い合わせください。
