SLLSEU8B March 2017 – May 2020 TPD2S703-Q1
PRODUCTION DATA.
The TPD2S703-Q1 is a 2-Channel Data Line Short-to-Battery, Short-to-VBUS, and IEC61000-4-2 ESD protection device for automotive high-speed interfaces like USB2.0. The TPD2S703-Q1 contains two data line nFET switches which ensure safe data communication while protecting the internal system circuits from any overvoltage conditions at the VD+ and VD– pins. On these pins, this device can handle overvoltage protection up to 18-V DC. This provides sufficient protection for shorting the data lines to the car battery as well as the USB VBUS rail.
Additionally, the TPD2S703-Q1 has a FLT pin which provides an indication when the device sees an overvoltage condition and automatically resets when the overvoltage condition is removed. The TPD2S703-Q1 also integrates IEC ESD clamps on the VD+ and VD– pins, thus eliminating the need for external TVS clamp circuits in the application.
The TPD2S703-Q1 has an internal oscillator and charge pump that controls the turnon of the internal nFET switches. The internal oscillator controls the timers that enable the charge pump and resets the open-drain FLT output. If VD+ and VD– are less than VOVP, the internal charge pump is enabled. After an internal delay, the charge-pump starts-up, turning on the internal nFET switches. At any time, if VD+ or VD– rises above VOVP, TPD2S703-Q1 asserts FLT pin LOW and the nFET switches are turned off.