Product overview
Description
The STWBC2-HP 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 STWBC2-HP can drive 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 STWBC2-HP front-end can work from DC voltage in the range of 4.1 V to 24 V and embeds:
- 3x half-bridge drivers capable of driving both the full bridge 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 Kbytes of flash memory and up to 32 Kbytes of SRAM with parity check. The device operates 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 available communication interfaces are UART for programming and configuring the device by using PCGUI or a host controller, and I²C for the secure element (STSAFE). SPI is reserved.
The STM32 embedded in the STWBC2-HP also provides two 12-bit DACs and a USB Power Delivery controller.
-
All features
- Digital controller for wireless power transmitters
- Power Tx reference design based on MP-A2 topology
- System-in-package (SiP) with microcontroller and front end device:
- Arm® Cortex®-M0+ 32-bit CPU with 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 modulator
- Integrated current, voltage, and phase demodulators
- Integrated current and voltage sensors
- 12-bit 0.5 us ADC
- Q-factor driver
- Support for half- and full-bridge topologies with input DC-DC
- USB physical interfaces
- USB Power Delivery
- Communication interfaces
- UART
- I2C
- GPIOs
- 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
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.
Please select one model supplier :
Symbols
Footprints
3D models
Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Longevity Commitment | Longevity Starting Date | Material Declaration** |
|---|---|---|---|---|---|---|---|
| STWBC2-HP | Active Product is in volume production. | 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.
You’re now leaving st.com and will be re-directed to our Partner’s website.
For the latest innovations and solutions from ST, sign up for our newsletters.
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 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | |||||||||||||||
| STWBC2-HP | | | distributors No availability of distributors reported, please contact our sales office |
|
| |||||||||||
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