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WT6678F
The WT6678F is a highly integrated USB Power Delivery (USB PD) controller that supports USB PD 3.1 SPR & EPR 48V specification. It is designed for USB Type-C® power source applications such as power adapters, wall chargers, car chargers, power strip. The WT6678F 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 56V) supports USB PD 3.1 SPR & EPR 48V specification. A Multi-Time-Programmable (MTP) ROM is provided for program code and user configuration data.
Features
- USB Type-C and USB-PD
- Supports USB PD 3.1 SPR & EPR 48V
- Programmable USB Type-C pull-up Rp (current source)
- Integrated Vconn power and switch for E-marked cable
- Built-in shunt regulator
- Programmable constant voltage control
PPS 3.3V to 21V, 20mV/step
EPR AVS 15 to 48V 20mV/step or 100mV/step
- Programmable constant current control
- Integrated low side current sense amplifier
- Cable drop compensation
- Programmable fault protections
- Over Voltage Protection (OVP)
- Under Voltage Protection (UVP)
- Over Current Protection (OCP)
- Over Temperature Protection (OTP)
- Short Circuit Protection (SCP)
- 10-bit ADC for voltage and current monitoring
- MCU
- Turbo 8051 compatible MCU
- 17.9K bytes Multi-Time-Programmable (MTP) ROM
- Driver for NMOS load switch
- Built-in discharge MOS transistor and external discharge control pin
- Internal RC oscillator
- Internal VDD regulator
- PFC control pin
- General purpose I/Os
- Supports power saving mode
- Operating voltage range: 3.3V to 56V (60V Max. rating)
- Operating temperature range: -20°C to +105°C
- Green Package: 16-pin QFN (4mmx4m)
- USB Type-C and USB-PD
应用领域
