USB Power and Charging Port Controllers
WT6639F
| 【 General Description 】 |
| The WT6639F is a highly integrated USB Power Delivery (USB PD) controller that supports USB PD 3.0 Programmable Power Supply (PPS) specification and Qualcomm® Quick ChargeTM 3+/4/4+/5 technologies. It is designed for USB Type-C® wall chargers and car chargers with multiple port solution. The multiple port solution offers a few design options, such as two USB Type-C ports (2C), two USB Type-C ports with two USB Std-A ports (2C2A), and etc. |
| The WT6639F minimizes external components by integrating two sets of USB PD baseband PHY, USB Type-C cable detection, Vconn power supply (for E-marked cable), 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 (3V to 24V) supports USB PD 3.0 Programmable Power Supply (PPS) specification. |
| The WT6639F is equipped with dual constant voltage (CV) and constant current (CC) features and can use I2C interface or FB pin to communicate with buck/boost controllers to control the output voltage and current of USB PD and fast charge adapters/chargers. A Multi-Time-Programmable (MTP) ROM is provided for program code and user configuration data and for any firmware update during development phase. |
| The WT6639F offers both USB Type-C and USB Std-A cable, UFP device, detection to customize the output power of USB Type-C port once a cable insertion event is detected, hence fulfills the power sharing capacity for multiple port chargers. |
| The WT6639F is certified by USB Implementers Forum (USB-IF) for USB PD 3.0 with PPS (TID: 5313). |
| 【 Features 】 | |
| ● | Integrated two USB-PD PHYs |
| - Supports USB PD 3.0 including Programmable Power Supply (PPS) | |
| - Programmable USB Type-C pull-up Rp | |
| - Integrated VCONN power and switch for reading E-marked cable | |
| ● | Integrated two USB charge detect blocks, supports USB BC1.2 DCP, Quick Charge 3+/4/4+/5 |
| ● | Integrated two VBUS voltage/current control |
| - Programmable constant voltage control | |
| - Programmable constant current control | |
| - Integrated high 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) | |
| ● | CC1/CC2/D+/D- Pins Over Voltage Protection |
| ● | 10-bit ADC for voltage and current monitoring |
| ● | MCU |
| - Turbo 8051 compatible MCU | |
| - 32K bytes Multi-Time-Programmable (MTP) ROM | |
| ● | Integrated two driver for NMOS load switch |
| ● | Built-in discharge MOS transistor |
| ● | Internal RC oscillator |
| ● | Internal VDD regulator |
| ● | General purpose I/Os |
| ● | Supports power saving mode |
| ● | Operating voltage range: 3V to 24V (30V tolerant) |
| ● | Operating temperature range: -20°C to +105°C |
| ● | Package: 32-pin QFN |
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