SPRSP96A March 2024 – September 2024 TDA4AEN-Q1 , TDA4VEN-Q1
PRODUCTION DATA
The USB 3.1 specification allows the VBUS voltage to be as high as 5.5V for normal operation, and as high as 20V when the Power Delivery addendum is supported. Some automotive applications require a max voltage to be 30V.
The device requires the VBUS signal voltage be scaled down using an external resistor divider (as shown in the Figure 8-4), which limits the voltage applied to the actual device pin (USB0_VBUS). The tolerance of these external resistors should be equal to or less than 1%, and the leakage current of Zener diode at 5V should be less than 100nA.
The USB0_VBUS pin can be considered to be fail-safe because the external circuit in Figure 8-4 limits the input current to the actual device pin in a case where VBUS is applied while the device is powered off.