TPD4S214

The TPD4S214 is a single-chip protection solution for USB On-the-Go (OTG) and other current limited USB applications. This device includes an integrated low R_DS(ON) N-channel current limited switch for the OTG current supply to peripheral devices. TPD4S214 offers low capacitance transient voltage suppression (TVS) electrostatic discharge (ESD) clamping diodes for the D+, D–, and ID pins for both USB2.0 and USB3.0 applications. The V_BUS pin can handle continuous voltage ranging from –7 V to 30 V. The over voltage lock-out (OVLO) at the V_BUS pin ensures that if there is a fault condition at the V_BUS line, TPD4S214 is able to isolate it and protect the internal circuitry from damage. Similarly, the under voltage lock out (UVLO) at the V_{OTG_IN} pin ensures that there is no power drain from the internal OTG supply to external V_BUS if V_{OTG_IN} droops below a safe operating level. When EN is high, the OTG switch is activated and the FLT pin indicates whether there is a fault condition. The soft start feature waits 16 ms to turn on the OTG switch after all operating conditions are met.