STWBC2中文资料Digital controller for wireless battery charger transmitters数据手册ST规格书

描述 Description

The STWBC2 is a digital controller specifically dedicated to design Qi-certified Wireless Power TX applications. The STWBC2 is a SiP including an STM32™ microcontroller and an application-specific front-end die.
Specifically, the STM32™ microcontroller embedded into the STWBC2 is the STM32G071.
The STWBC2 is capable of driving the DC-DC stage and the half- or full-bridge inverter stage of a generic Qi wireless battery charging TX. It generates and controls the relevant PWM signals by means of a PWM machine capable of 1.47 ns resolution. In order to achieve that, the front-end die includes a 40 MHz PLL and a 17-step DLL.
The STWBC2 front end is capable of working from any DC voltage in the range of 4.1 V to 24 V and embeds:
The Front End die also includes specific registers and an SPI interface with the STM32, in combination with an output mux for analog signals to the STM32 ADC, and GPIOs for digital signals to the STM32 core.
The STM32 microcontroller embeds an ARM Cortex™-M0+ CPU with up to 128 k Flash memory and up to 32 k of SRAM with parity check, with a clock frequency up to 64 MHz. It also embeds a 12-bit, 0.5 μs ADC and provides UART, I2C, SPI and GPIOs.
The STM32G071 embedded in STWBC2 also provides two 12-bit DACs and USB-PD controller.

特性 Features

• Digital controller for Qi certified wireless power transmitters
• Compliant with WPC 1.3
• Power Class 0 BPP (5 W) and EPP (15 W)
• Proprietary extension from smartphone manufacturers
• SiP with uC and front end device:
• ARM 32-bit Cortex™-M0+ CPU, frequency up to 64 MHz
• 3x half-bridge drivers
• Embedded 3.6 V / 5 V500 mA DC-DC
• 3.3 V 150 mA and 1.8 V 50 mA LDOs
• 6 V to 9 V up to 100 mA voltage doubler
• Qi 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
• Single and multi-coil topologies
• 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
• QC 3.0
• Communication interfaces
• UART
• SPI (up to 28 Mbit/s)
• I2C (up to 1 Mbit/s)
• Up to 8x GPIOs
• Peripherals
• 40 MHz PLL
• 17-step DLL
• 1.47 ns resolution PWM generator
• 8-channel 12-bit 0.5 us ADC
• Low side differential current sensor
• Q-Factor driver
• Memory
• 128 Kbytes of Flash memory with ECC
• 32 Kbytes of SRAM with HW parity check
• Clock management
• 4 to 48 MHz crystal oscillator
• Development support: serial wire debug (SWD)
• Operating temperature: -40°C up to 125°C.
• Package: VFQFPN68L 8x8 mm pitch 0.4
• 96-bit unique ID

简介

STWBC2属于集成电路（IC）的电源管理-专用。由ST制造生产的STWBC2电源管理 - 专用专用型电源管理集成电路 (PMIC) 用于电源的控制或操作，适合特定或小范围的目标应用，例如汽车气囊管理、电容器组平衡、AC 公共电力监控、存储器总线端接、接地故障检测、能量收集、小型引擎管理、处理器或芯片集专用电压调节、负载突降保护、触觉驱动器、热电制冷器控制等。