The Weltrend WT8801 is a highly integrated single-chip USB Type-C Power Delivery (PD) controller. It is designed to support a wide range of applications, including USB PD chargers, power adapters, and other power delivery devices. This chip facilitates efficient power transfer and adheres to the USB PD specifications, ensuring compatibility and safe operation.
Applications
- USB PD Chargers
- Power Adapters
- Power Banks
- Docking Stations
- USB Hubs
Features
- USB Type-C and Power Delivery (PD) Compliance: Fully compliant with the USB Type-C and USB PD specifications, ensuring compatibility with a wide range of devices.
- Integrated Microcontroller: Embedded microcontroller for managing PD protocols and custom functions.
- Programmable Power Supply (PPS) Support: Supports PPS for fine-grained voltage and current adjustments.
- Over-Voltage Protection (OVP): Protects devices from damage due to excessive voltage.
- Over-Current Protection (OCP): Prevents damage from excessive current draw.
- Short-Circuit Protection (SCP): Detects and protects against short circuits.
- Over-Temperature Protection (OTP): Shuts down the device to prevent overheating.
- Low Standby Power Consumption: Minimizes power consumption when the device is idle.
- I2C Interface: Allows for communication with other system components.
- GPIO Pins: Provides general-purpose input/output pins for custom functions.
Benefits
- Enhanced Power Delivery: Enables faster and more efficient charging of devices.
- Increased Compatibility: Ensures seamless compatibility with USB Type-C and PD-enabled devices.
- Robust Protection Mechanisms: Protects devices from potential damage due to voltage, current, and temperature fluctuations.
- Customizable Functionality: Allows for custom configuration and control through the integrated microcontroller and I2C interface.
- Reduced System Cost: Integration of multiple functions into a single chip reduces the need for external components.
- Simplified Design: Simplifies the design process for USB PD chargers and power adapters.
The WT8801 operates with a supply voltage typically between 3V and 5.5V, making it suitable for a wide range of power supply applications. Its compact package and low power consumption make it an ideal choice for portable devices and power-efficient systems. The chip also includes built-in discharge paths for VBUS, improving system safety and reliability. The integrated microcontroller can be programmed to implement custom charging profiles and features, providing flexibility for different applications. With its comprehensive feature set and robust protection mechanisms, the Weltrend WT8801 is a reliable and efficient solution for USB Type-C Power Delivery applications.