CH237

Overview

CH237 is a Type-A/C dual-port fast charging protocol controller, supports one Type-C interface and one Type-A interface at the same time, supports fast charging protocols such as PD2.0/3.0, PPS, BC1.2, supports AC-DC and DC-DC power management, supports constant voltage loop and constant current loop, high integration and simplified peripherals. It supports VBUS detection and discharge functions, and provides over-voltage, over-temperature and over-current protection, etc. CH237 can be widely used in various occasions such as AC power adapter, car charger, UPS and power bank.

Functional Features

• Supports 3.3V-24V wide voltage input. Output voltage adjustable in 20mV step
• Supports one Type-C interface and one Type-A interface at the same time
• Supports multiple fast charging protocols such as PD2.0/3.0, PPS and BC1.2.
• Cable voltage drop compensation: 100mV/A
• N-MOS or P-MOS is optional for the Type-C interface
• Supports AC-DC and DC-DC constant voltage loop and constant current loop
• High integration, simplified peripherals and low costs
• Built-in over-current protection (OCP), over-temperature protection(OTP), power supply over-voltage – protection(OVP) and under-voltage protection (UVP)