Product overview
Description
The STWBC2HP is a digital controller specifically designed for wireless power transmitter (TX) applications. It is a System-in-Package (SiP) that includes an STM32 microcontroller and an application-specific front-end die.
The STWBC2HP is capable of driving the DC-DC stage and the half- or full-bridge inverter stage of a generic wireless battery charging transmitter (TX). It generates and controls the relevant PWM signals using a PWM machine with a resolution of 1.47 ns. To achieve this, the front-end die includes a 40 MHz PLL and a 17-step DLL.
The STWBC2HP front end can work from any DC voltage in the range of 4.1 V to 24 V and embeds:
- 3x half-bridge drivers capable of driving both the FB inverter or the DC-DC MOSFET
- 2x PWM outputs for external gate drivers
- 2x LED drivers
- 3.6 V/5 V monolithic buck DC-DC to supply the analog portion of the die
- 3.3 V LDO to supply the STM32
- 1.8 V LDO to supply the core
- 6 V or 9 V voltage doubler to supply the gate drivers
- Resonant tank current, voltage, and phase sense circuitry and Q-factor driver
- USB D+/D-, CC1, CC2 external interface pins for USB PD
The STM32 microcontroller features an Arm Cortex™-M0+ CPU with up to 128 KB of flash memory and up to 32 KB of SRAM with parity check, operating at a clock frequency of up to 64 MHz. It also includes a 12-bit, 0.5 μs ADC and provides UART, I2C, SPI, and GPIO interfaces.
The STM32 embedded in the STWBC2HP also provides two 12-bit DACs and a USB Power Delivery controller.
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All features
- Digital controller for wireless power transmitters
- Proprietary ST Super Charge extension for high power charging
- System-in-package (SiP) with microcontroller and front-end device:
- Arm 32-bit Cortex™-M0+ CPU, frequency up to 64 MHz
- 3x half-bridge drivers
- Embedded 3.6 V/5 V DC-DC
- 3.3 V and 1.8 V LDOs
- 6 V or 9 V voltage doubler
- FSK programmable modulator
- Integrated current, voltage, and phase demodulators
- Integrated current and voltage sensors
- Support for half- and full-bridge topologies with input DC-DC
- Support for limited power sources such as 5 V 500 mA USB
- VIN operative range: 4.1 V to 24 V
- USB physical interfaces
- USB Power Delivery
- Communication interfaces
- UART
- I2C
- GPIOs
- Peripherals
- 12-bit 0.5 us ADC
- Q-factor driver
- Memory
- 128 Kbytes of flash memory with ECC
- 32 Kbytes of SRAM with hardware parity check
- Development support: serial wire debug (SWD)
- Package: VFQFPN68L 8x8 mm pitch 0.4 mm
- Digital controller for wireless power transmitters
EDA Symbols, Footprints and 3D Models
STMicroelectronics - STWBC2HP
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Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Longevity Commitment | Longevity Starting Date | Material Declaration** |
|---|---|---|---|---|---|---|---|
| STWBC2-HP | Active | VFQFPN 8X8X1.0 68LPITCH0.4 ROUTA | Industrial | Ecopack2 | 7 | 2024-01-01T00:00:00.000+01:00 |
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
Sample & Buy
| Part Number | Marketing Status | Budgetary Price (US$)*/Qty | Order from ST | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Operating temperature (°C) | Operating Temperature (°C) (max) | Output Power (W) (typ) | Grade | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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| STWBC2-HP | | | distributors No availability of distributors reported, please contact our sales office |
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STWBC2-HP Active
(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors