製品概要
概要
The STWBC-MC is the digital controller for the wireless battery charger (WBC) transmitters (TX) from STMicroelectronics optimized for the extended power profile (EPP) Wireless Power Consortium (WPC) multi-coil applications up to 15 W. It offers the most flexible and efficient solution for controlling the power transfer to a receiver (RX) in WBC-enabled applications such as smartphones, tablets and other battery-powered devices that use the electromagnetic induction for recharging.The TX is responsible for controlling the transmitting coil and generating the correct amount of power requested by the RX. The RX continuously provides the transmitter with the correct power level requested, by modulating the transmitter carrier through the controlled resistive or capacitive load. Generating the correct amount of power ensures the highest level of end-to-end efficiency due to reduced energy losses. It also helps maintaining a lower operational temperature.
The TX can adapt to the amount of energy transferred by the coil by modulating the frequency, duty cycle or amplitude of the PWM voltage on the transmitting coil.
The STWBC-MC is capable of bidirectional communication with the RX as specified by the WPC 1.2 protocol.
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特徴
- Digital controller for wireless battery charger transmitter
- Multi-coil inductive transmitters optimized for:
- Cell phones and smartphones
- Tablets and phablets
- Charging accessories
- Support for Wireless Power Consortium (WPC) 1.2 EPP applications
- Backward compatible with WPC BPP and 1.1 5W applications
- Support for half-bridge topology with DC/DC
- VIN range: 3 V to 5.5 V
- Supports USB VIN
- Active presence detector
- Foreign object detection
- Q-factor measurement
- Parametric customization via GUI
- Turnkey firmware solution
- Peripherals
- 10-bit ADC
- UART interface
- 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: 20 years at 55 °C after 1000 cycles at 55 °C
- Data memory: 1 Kbyte true data EEPROM; data retention: 20 years at 55 °C after 1000 cycles at 85 °C
- RAM: 6 Kbytes
- Transmitter reference design:
- Multi-coil EPP topology
- 2-layer PCBs
- Active object detection
- Graphical user interface for application monitoring
- Operating temperature: -40 °C up to 105 °C
- Package: VFQFPN32 5 x 5 mm
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 | |||
|---|---|---|---|---|
| 15 Jul 2019 | 15 Jul 2019 |
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-MC
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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-MC | NRND | VFQFPN 32 5x5x1.0 mm | インダストリアル | Ecopack2 | |
| STWBC-MCTR | 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$)*/Qty | 詳細情報 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 最小 | 最大 | ||||||||||||||
| STWBC-MCTR | 販売代理店に在庫がない場合は、STのセールス･オフィスまでお問い合わせください | NRND | 3A991A2 | NEC | Tape And Reel | VFQFPN 32 5x5x1.0 mm | -40 | 105 | Industrial | CHINA | 15 | 3.225 / 1k | |||
| STWBC-MC | 2 distributors | Buy Direct | NRND | 3A991A2 | NEC | Tray | VFQFPN 32 5x5x1.0 mm | -40 | 105 | Industrial | CHINA | 15 | 3.225 / 1k | ||
製品ステータス
NRNDECCN (US)
3A991A2Budgetary Price (US$)*/Qty
3.225 / 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。
