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WT6688
The WT6688 is a dual-port USB PD DRP controller that supports USB PD 3.2 SPR & EPR 28V specification. It is designed for USB Type-C®applications such as laptops, docking stations, hubs, etc.The WT6688 minimizes external components by integrating ARM® Cortex®-M0, power LDOs, USB PD physical layer, USB Type-C cable detection, power advertisement, fast role swap, dead battery operation, BC1.2 detection, voltage and current monitors, VCONN power switches, 5V/3A load switches, 28V/5A NMOS drivers, and alternate modes. Wide operation voltage range, up to 34V, supports USB PD 3.2 EPR 28V specification. An internal SRAM and external serial flash is provided for program code and in-system-programming features.
Features
- MCU and Peripherals
- ARM Cortex-M0 Processor
- 4/8/16/32MHz RC OSC
- 65 kHz RC OSC
- SPI interface for external serial flash access
- Boot ROM (Bootloader)
- 64kB program and data SRAM
- 10-bit ADC
- Three I2C interfaces with IRQ pins to communicate with Thunderbolt™, Superspeed multiplexer, retimer, redriver, embedded controller and other devices.
- General Purpose I/O’s (GPIO)
- Active/idle/sleep mode
- POR (Power On Reset) and LVR (Low Voltage Reset)
- USB Type-C and USB PD
- Supports USB PD 3.2 SPR & EPR 28V
- Dual USB PD PHY’s (Physical layer)
- Source, Sink and DRP configurable
- Programmable 80/180/330uA current sources for the Source CC Terminations (Rp)
- 5.1kΩ Sink CC Terminations (Rd)
- Cable plug and orientation detection
- Hardware response GoodCRC
- Support unchunked message (up to 260 bytes)
- FRS (Fast Role Swap)
- Dead battery operation
- BC 1.2 detection and HVDCP (High Voltage DCP)
- Connector liquid detection
- Alternate modes
- DP (DisplayPort™) with HPD (Hot Plug Detect)
- Thunderblot™
- Power switches and drivers
- Four 28V/5A NMOS derivers with soft start
- Two 5V/3A back-to-back load swicthes
- Two 5V/0.6A VCONN power switch with OCP and Vconn power voltage monitoring
- Programmable fault protections
- OVP (Over Voltage Protection)
- UVP (Under Voltage Protection)
- OCP (Over Current Protection)
- RCP (Reverse Current Protection)
- OTP (Over Temperature Protection), on-chip thermal monitoring
- Power regulators and VBUS power rails, Source and Sink
- LDO33 (from VBUS to 3.3V)
- LDO18 (from 3.3V to 1.8V)
- Power switch to switch power supply from VBUS to VIN33, or vice versa
- Voltage sensing, OVP, and UVP
- Current sensing, OCP, and RCP
- VBUS_A/VBUS_B discharge circuit
- Operating voltage range:
- 3V to 3.6V (System Power)
- 4V to 34V (VBUS Power)
- Operating temperature range: -40°C to +105°C
- Package: QFN-56, 7mm x 7mm
- MCU and Peripherals
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