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USB PD Protocol Sink IC - CH224

Overview

CH224 integrates multiple fast charging protocols such as USB PD3.0/2.0, BC1.2, with a built-in PD communication module. CH224 has features of high integration and streamlined peripherals. CH224 integrates output voltage detection function, and provides over-temperature and over-voltage protection, etc. It can be widely used in various electronic equipment to expand high-power input such as wireless charger, electric toothbrush, rechargeable shaver, lithium battery power tools and other applications.

Features

  • 5V to 20V input voltage.
  • Supports PD3.0/2.0, BC1.2 and other fast charging protocols.
  • Supports USB Type-C PD, supports positive and negative insertion detection and automatic switching.
  • High integration, streamlined peripherals, and low cost.
  • Built-in over-voltage alarm module OVA, over-temperature alarm module OTA.

Applications

  • Wireless charger
  • Lithium battery minor electric appliances
  • Lithium battery electric tools
  • Power bank

Pinouts

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relation files

file name file content
CH236DS1.PDF CH236 datasheet. CH236 supports fast charging protocols such as PD3.0/2.0, BC1.2, etc. CH236 supports AC/DC constant voltage loop and constant current loop, and has built-in DC/DC control module, with features of high integration and simplified peripherals.
CH549DS1.PDF CH549/CH548 datasheet. An 8-bit enhanced USB MCU with multiple interfaces. It provides 64K program ROM and 2K+256 RAM. It supports USB host, USB device and Type-C CC and PD. It provides 16-channel Touch-key, 16-channel ADC, 3 sets of timers, 8-channel PWM, 4-channel UART and SPI, etc.
CH237DS1.PDF CH237 datasheet. Type-A/C dual-port fast charging protocol controller, supports fast charging protocols such as PD3.0/2.0, BC1.2, etc. CH237 supports AC/DC constant voltage loop and constant current loop, with features of high integration and simplified peripherals.