(ACTIVE) Complete USB Port Protection Device


Functional Diagram


The TPD4S014 is a single-chip solution for USB charger port protection. This device offers low capacitance transient voltage suppressor (TVS) electrostatic discharge (ESD) clamps for the D+, D-, and standard capacitance for the ID pin. On the VBUS pin, this device provides overvoltage protection (OVP) up to 28 V DC. The overvoltage lockout feature ensures that if there is a fault condition at the VBUS line, the TPD4S014 is able to isolate the VBUS line to protect the internal circuitry from damage. There is a 17-ms turn-on delay after VBUS rises above the undervoltage lockout (UVLO) threshold in order to let the voltage stabilize before turning the nFET on. This function acts as a de-glitch and prevents unnecessary switching if there is any ringing on the line during connection.


  • Input Voltage Protection at VBUS up to 28 V
  • Low Ron nFET Switch
  • Supports > 2 A Charging Current
  • ESD Performance D+/D-/ID/VBUS Pins:
    • ±15-kV Contact Discharge (IEC 61000-4-2)
    • ±15-kV Air Gap Discharge (IEC 61000-4-2)
  • Overvoltage and Undervoltage Lockout Features
  • Low Capacitance TVS ESD Clamp for USB2.0 High Speed Data Rate
  • Internal 17 ms Startup Delay
  • Integrated Input Enable and Status Output Signal
  • Thermal Shutdown Feature
  • Space Saving SON Package (2 mm × 2 mm)


IO capacitance (Typ) (pF) 1.5    
Breakdown voltage (Min) (V) 6    
IEC 61000-4-2 contact (+/- kV) 15    
IEC 61000-4-2 air-gap (+/- kV) 15    
Interface USB 2.0    
Features Over Voltage Protection    
Bi-/uni-directional Uni-Directional    
IO leakage current (Max) (nA) 1000    
Rating Catalog    
Operating temperature range (C) -40 to 85    
Package Group WSON|10    
Package size: mm2:W x L (PKG) See datasheet (WSON)    
Dynamic resistance (Typ) (Ω) 1    
Clamping voltage (V) 15    

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Datasheet (1)

Application notes (3)

User guides (1)

Selection guides (3)

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