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Wireless Charging Dedicated MCU CH641

Overview

CH641 series is a dedicated microcontroller for PD wireless charging designed based on QingKe RISC-V2A core. This series has a wide voltage, 1-wire serial debug interface, low-power consumption, peripheral streamlining, etc. CH641 built-in PD PHY, BC interface, differential input current sampling and AC small signal amplification decoder, support USB PD and Type C fast charging function, BC1.2 and DCP and a variety of other HV charging protocols, provides DMA controller, 10-bit ADC, multi-group timer, USART, I2C and other rich peripheral resources, providing over-voltage protection and over-temperature protection.

System Block Diagram

System Block Diagram

Features

  • QingKe 32-bit RISC-V2A core processer, up to 48MHz system main frequency
  • 2KB SRAM, 16KB Flash
  • Low-power modes: Sleep/Standby
  • Power up reset, programmable voltage detector
  • 7-channel general-purpose DMA controller
  • Multiple external 10-bit ADC conversion channels
  • Multiple timers, including advanced-control timer, general-purpose timer, watchdog timer and system time base timer
  • 1 set of multi-pin mapped USART
  • 1 I2C slave interface
  • USB PD and Type C controller and PHY
  • 1 BC interface
  • Differential input current sampling ISP/ISN
  • AC small signal amplifier and decoder QII
  • GPIO, 4 high voltage drive pins, 5 low voltage strong drive pins
  • Overvoltage protection (OVP) and overtemperature protection (OTP)
  • 64-bit Chip unique ID
  • 1-wire serial debug interface (SDI)
  • Package forms: QFN16、QFN20、QFN28

Selection Guide

Selection Guide

Development Material

  1. Product manual: CH641DS0.PDF
  2. CH641 Evaluation Board Description and Reference Application Routines: CH641EVT.ZIP
  3. Integrated Development Environment (IDE): MounRiver Studio(MRS)
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relation files

file name file content
CH32X035RM.PDF Information change in the download page (Software introduction/application scope):The CH32X035 series reference manual, developed for the user's application, provides detailed information on the use of the CH32X035 products for the different functional resources and packages in the series.
CH32X035DS0.PDF USB+USBPD microcontroller CH32X035 datasheet, X035 is an MCU based on QingKe RISC-V core with 64KB FLASH and 20K RAM, supporting USB and PD and type C. It provides ADC, OPA, CMP, SPI, serial port, Touchkey detection and other common peripheral functions.
CH246DS1.PDF CH246 datasheet. Wireless Charging Management Chip, integrates with wireless charging transceiver module and small signal decoding circuit, can easily implement various WPC Qi wireless charging solutions in addition to some customer-defined software.
CH247DS1.PDF CH247 datasheet. CH247 is a wireless power controller. CH247 supports Qi protocol, and supports up to 15W output power.
CH543DS1.PDF CH543/CH542/CH541/CH540 datasheet. A USB communication and USB PD power management dual-role 8-bit PM-MCU, supports full-speed and low-speed USB Host and USB Device. It provides embedded PD PHY transceiver and controller. It also provides PWM, UART, I2C slave and other functional modules. It supports 12V high-voltage input, and is suited for Type-C PD products.
CH641RM.PDF The application manual for PD wireless charging microcontroller CH641, provides detailed usage information of PD, type-C, PWM, serial port, ADC, differential current sampling, QI decoding and other functional modules for user application development.