STWBC-EP中文资料Digital controller for wireless battery charger transmitters (WBC) in 15 W medium power applications数据手册ST规格书

描述 Description

The STWBC-EP is the digital controller for the wireless battery charger (WBC) transmitters (TX) from STMicroelectronics optimized for Extended Power Profile (EPP) Wireless Power Consortium (WPC) 1.2 certified 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-EP is capable of bidirectional communication with the RX as specified by the WPC 1.2 protocol.

特性 Features

• Digital controller for wireless battery charger transmitter
• 15 W single coil inductive transmitters optimized for:
• Cell phones and smartphones
• Tablets and phablets
• Charging accessories
• Support for Wireless Power Consortium (WPC) 1.2 EPP 15 W certified applications
• Backward compatible with 5 W WPC 1.1 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-Kbyte 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:
• WPC Qi 1.2.3 certified
• MP-A10 single coil 15 W topology
• Evaluation board order code: STEVAL-ISB044V1
• 2-layer PCBs
• Active object detection
• Graphical User Interface for application monitoring
• Operating temperature: -40 °C up to 105 °C
• Package: VFQFPN32 - 5 x 5mm

简介

STWBC-EP属于集成电路（IC）的电源管理-专用。由制造生产的STWBC-EP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。