(ACTIVE) USB OTG Companion Device With Vbus Overvoltage, Overcurrent Protection, and Four-Channel ESD Clamp


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 RDS(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 VBUS pin can handle continuous voltage ranging from –7 V to 30 V. The over voltage lock-out (OVLO) at the VBUS pin ensures that if there is a fault condition at the VBUS line, TPD4S214 is able to isolate it and protect the internal circuitry from damage. Similarly, the under voltage lock out (UVLO) at the VOTG_IN pin ensures that there is no power drain from the internal OTG supply to external VBUS if VOTG_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.


  • Input Voltage Protection at VBUS from –7 V to 30 V
  • IEC61000-4-2 Level 4 ESD Protection
    • ±15-kV Contact Discharge
    • ±15-kV Air Gap Discharge
  • IEC 61000-4-5 Surge Protection
    • 7.8 A (8/20 μs)
  • Low RDS(ON) N-CH FET Switch for High Efficiency
  • Compliant with USB2.0 and USB3.0 OTG spec
  • User Adjustable Current Limit From 250 mA to Beyond 1.2 A
  • Built-in Soft-start
  • Reverse Current Blocking
  • Over Voltage Lock Out for VBUS
  • Under Voltage Lock Out for VOTG_IN
  • Thermal Shutdown and Short Circuit Protection
  • Auto Retry on any Fault; No Latching Off States
  • Integrated VBUS Detection Circuit
  • Low Capacitance TVS ESD Clamp for USB2.0 High Speed Data Rate
  • Internal 16ms Startup Delay
  • Space Saving WCSP (12-YFF) Package
  • UL Listed and CB File No. E169910


IO Capacitance (Typ) (pF) 2   
Breakdown Voltage (Min) (V) 6   
IEC 61000-4-2 Contact (+/- kV) 15   
IEC 61000-4-2 Air-Gap (+/- kV) 15   
Interface USB 2.0   
Special Features Current Limit^Over Voltage Protection   
Bi-/Uni-Directional Uni-Directional   
IO Leakage Current (Max) (nA) 100   
Rating Catalog   
Operating Temperature Range (C) -40 to 85   
Package Group DSBGA   
Package Size: mm2:W x L (PKG) See datasheet (DSBGA)   
Dynamic Resistance (Typ) (Ω) 1   
Clamping Voltage (V) 9   

Companion Products

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Datasheet (1)

Application notes (3)

User guides (1)

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