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USB Charger Overvoltage Surge and ESD Protection


Package | PIN: YZ | 12
Temp: I (-40 to 85)
Carrier: Cut Tape
Qty Price
1-9 $1.03
10-24 $0.92
25-99 $0.85
100-249 $0.72
250-499 $0.67
500-749 $0.55
750-999 $0.44
1000+ $0.39


  • Over Voltage Protection at VBUS_CON
    up to 30-V DC
  • Precision OVP ( < ± 1% Tolerance)
  • Low RON nFET Switch Supports Host and Charging Mode
  • Dedicated VBUS_POWER Pin Offers Flexible Power up Options Under Dead Battery Condition
  • Transient Protection for VBUS Line:
    • IEC 61000-4-2 Contact Discharge ±15 kV
    • IEC 61000-4-2 Air Gap Discharge ±15 kV
    • IEC 61000-4-5 Open Circuit Voltage 100 V
      • Precision Clamp Circuit Limits the VBUS_SYS Voltage < VOVP
  • USB Inrush Current Compliant
  • Thermal Shutdown (TSD) Feature

Texas Instruments  TPD1S514-1YZR

The TPD1S514 Family consists of single-chip protection solutions for 5-V, 9-V or 12-V USB VBUS lines, or other power buses. The bidirectional nFET switch ensures safe current flow in both charging and host mode while protecting the internal system circuits from any over voltage condition at the VBUS_CON pin. On the VBUS_CON pin, this device can handle over voltage protection up to 30-V DC. After the EN pin toggles low, any device in the TPD1S514 Family waits 20 ms before turning ON the nFET through a soft start delay.

Typical application interfaces for the TPD1S514 Family are VBUS lines in USB connectors typically found in cell phones, tablets, eBooks, and portable media players. The TPD1S514 Family can also be applied to any system using an interface for a 5-V, 9-V, or 12-V power rail.