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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.主な特徴
- 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
サンプル & 購入
| 製品型番 | 製品ステータス | パッケージ | グレード | ECCN (US) | Country of Origin | 温度（℃） | Output Power (W) (typ) | Budgetary Price (US$)*/Qty | STからオーダー | 販売代理店からオーダー | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 最小 | 最大 | ||||||||||
| STWBC-MCTR | 量産中 | VFQFPN 32 5x5x1.0 | Industrial | 3A991A2 | CHINA | -40 | 105 | 15 | 3.225 / 1k | 販売代理店に在庫がない場合は、STのセールスオフィスまでお問い合わせください | |
| STWBC-MC | 量産中 | VFQFPN 32 5x5x1.0 | Industrial | 3A991A2 | CHINA | -40 | 105 | 15 | 3.225 / 1k | サンプル入手 | 在庫チェック |
STWBC-MCTR
製品ステータス
量産中パッケージ
VFQFPN 32 5x5x1.0Budgetary Price (US$)*/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。
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画像 製品型番 製造元 概要 
STEVAL-ISB047V1 ST Qi certified 3-coil 15 W wireless charger TX evaluation kit based on STWBC-MC 製品型番Qi certified 3-coil 15 W wireless charger TX evaluation kit based on STWBC-MC
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| 製品型番 | 製品ステータス | 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 | 量産中 | VFQFPN 32 5x5x1.0 | Industrial | Ecopack2 | |
| STWBC-MCTR | 量産中 | VFQFPN 32 5x5x1.0 | Industrial | 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
