USB PD3.1 DRP Total Solution for Battery System
The core of this solution is the CY53781, a highly integrated USB Type-C PD3.1 DRP (Dual-Role Power) controller featuring bidirectional power path management and PD protocol communication. The primary functional blocks are as follows:
- Bidirectional Power Path Control: Manages the flow of electricity in both directions.
- Dynamic Load Management (Load Distribution): Balances and distributes power across loads in real-time.
- Path Selection Circuit (Current Path Circuit): The circuitry responsible for routing current through the appropriate paths.
- Controller Feedback & Protection: Provides system monitoring, feedback loops, and safety safeguards.
Application examples are embedded monitor & mobile vehicle (行動車載), power tool (電動工具), wireless speaker (無線喇叭), POS terminals (POS終端機), and portable monitor (行動螢幕) etc.
Features
- USB PD3.1 v1.8 certified with TID: 11689
- Support autonomous DRP Control
- Support EPR / AVS up to 28V with 100mV/step
- Support power down consumption as low as 50uA
- Source PDO capability selected through resistor setting
- Sink RDO voltage/current selected through resistors settings
- Support QC2.0/3.0 Sink and Source controller
- Support OVP/UVP/OCP with auto restart
- VBUS short protection on CC1/CC2 pins up to 31V
- VBUS short protection on DP/DN pins up to 24V
- Support auto wake up in dead battery condition during the sink mode
- Support smart charging scheme with power path control for extending battery life
- AX3601 buck-boost converter has fully integrated 4-switch MOS and support wide input/output voltage range up to 28V