Weltrend | Products

USB PD controllers

WT6675P

The WT6675P is a highly integrated USB Power Delivery (USB PD) controller that supports USB PD 3.2 SPR & EPR 36V specification. It is designed for USB Type-C^®power source applications such as power adapters, wall chargers, car chargers, and power strip. The WT6675P minimizes external components by integrating USB PD baseband PHY, USB Type-C detection, shunt regulator, voltage and current monitors, NMOS load switch driver and an 8-bit MCU to allow small form factor and low BOM cost. Wide operation voltage range (3.3V to 45V) supports USB PD 3.2 SPR & EPR 36V specification. One-Time-Programmable ROM is provided for program code and user configuration data. The WT6675P is certified by USB Implementers Forum (USB-IF) for USB PD 3.1 140W (TID: 9066).

Features

- USB Type-C and USB-PD
- Supports USB PD 3.2 SPR & EPR 36V

- Programmable USB Type-C pull-up Rp

- Integrated Vconn power and switch for E-marked cable

- EPR Source capabilities (11 PDOs)
- Built-in shunt regulator
- Support 3.3V to 36V, provide fine tune to increase voltage slightly

- Fine tune voltage: 20mV/50mV

- Programmable constant voltage control
- Low-side current shunt monitor with programmable gain
- Programmable cable drop compensation
- CC1/CC2 OVP (short VBUS protection)
- Programmable fault protections
- Over Voltage Protection (OVP) with programmable voltage

- Under Voltage Protection (UVP) with programmable voltage

- Over Current Protection (OCP)

- Over Temperature Protection (OTP)
- Short circuit protection
- MCU
- Embedded 1T 8051 CPU @10MHz

- 16K bytes One-Time-Programmable ROM

- 768 bytes SRAM
- 10-bit ADC for voltage and current monitoring
- Blocking N-MOSFET control with built-in Charge Pump
- Internal VDD regulator
- One Current Source output pin for controlling PFC
- One Slave I2C interface
- Supports power saving mode
- Operating voltage range: 3.3V to 45V (50V Max. rating)
- Operating temperature range: -20°C to +105°C
- Green Package: 16-pin QFN (4mmx4mm), 14-pin SOP and 10-pin SOP

Applications

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Desktop PCs & Notebooks

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