CH224Q/CH224A are USB PD fast charging protocol sink chips supporting USB PD3.2, with a maximum PD3.2 EPR power of 140W.
They support single resistor configuration, I/O level configuration, and I2C configuration. The protocol handshake status and current PD voltage/current rating can be read via the I2C interface. The chip has a built-in high-voltage LDO, low static power consumption, high integration, and simplified external circuitry. It also integrates output voltage detection and overvoltage protection, making it widely applicable for expanding high-power input in various electronic devices such as wireless chargers, small appliances, lithium battery power tools, and more.
CH224K/CH224D/CH221K are USB PD fast charging protocol sink chips supporting USB PD3.0, with a maximum power of 100W. They support single resistor configuration and I/O level configuration.
Features
- Supports input voltage from 4V to 30V
- Supports PD3.2 EPR, AVS, PPS, SPR protocols, and BC1.2 boost fast charging protocols
- Supports eMarker emulation and automatic VCONN detection
- Supports multiple methods for dynamically adjusting requested voltage
- Supports 400KHz I2C communication
- Built-in high-voltage LDO, low static power consumption
- High integration in a single chip, simplified external circuitry, low cost
- Built-in overvoltage protection module (OVP)
CH224 is a USB PD sink controller, supports fast charge protocols such as PD3.0/2.0 and BC1.2, supports 4V to 22V, and can dynamically configure the request-voltage through multiple methods.
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