偉詮電子(TWSE: 2436)今(20)天宣布推出公司第一顆通過AEC-Q100車規認證的USB PD控制晶片WT6617F。WT6617F設計符合車用效能,可用於車用USB Type-C供電應用如車座充電孔和車內資訊娛樂系統附設充電孔等。
WT6617F具高度整合性,能減少外部零件,為一具有整體成本與設計尺寸優勢的解決方案。此控制晶片結合了USB-PD baseband PHY、Type-C cable 偵測、並聯穩壓器、電壓和電流監控、負載開關NMOS控制電路及微控制器。晶片內建的穩壓器可讓工作電壓操作於3V~24V,支援PPS規格。內建可多次燒錄的程序記憶體可用於編輯程式及使用者設定資料。
偉詮的WT6617F車規USB PD控制晶片主要的功能包含:
● USB Type-C and USB-PD
- Supports USB PD 3.0 including Programmable Power Supply (PPS)
- Programmable Type-C pull-up Rp
- Integrated VCONN power and switch for reading E-marked cable
● Supports USB BC1.2 DCP, Quick Charge 4 and Quick Charge 4+ (backward compatible Quick Charge 3.0 and Quick Charge 2.0)
● Built-in shunt regulator
- Programmable constant voltage control
- 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)
● 10-bit ADC for voltage and current monitoring
● MCU
- Turbo 8051 compatible MCU
- 16K bytes Multi-Time-Programmable (MTP) ROM
● 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)