STWBC2HP中文资料Digital controller for wireless battery charger transmitters数据手册ST规格书

描述 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 STM321.8 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.

特性 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
• 内存
•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