Over Voltage and Surge Protected Dual SPDT Data Line Switch

Protect the data line from a high-voltage short or surge event


The MAX14743 is a 2 x SPDT switch with overvoltage protection intended for use with portable devices. As the high-voltage charging solution starts to spread out, a data line short event to the high-voltage VBUS can result in either charger misdetection or permanent damage to the portable device. The MAX14743 is designed to protect the downstream data line from a high-voltage short or surge event.

The device combines low on-capacitance (CON) and low on-resistance (RON) necessary for high-performance switching applications in portable electronics. The device features internal positive overvoltage, negative overvoltage, and surge protection. The device handles USB low/full/ high-speed signaling and operates from a 2.7V to 5.5V supply.

The MAX14743 is available in a 12-bump (1.22mm x 1.62mm) wafer-level package (WLP) and operates over the -40°C to +85°C extended temperature range.

Key Features

  • Distortion-Free, High-Speed Signaling
    • Dual SPDT
    • Signal Range: -1V to +3.5V
    • RON: 5.5Ω (typ)
    • CON: 4.5pF (typ)
    • Bandwidth > 1GHz
  • Flexible System Design
    • Separate Control for Each Switch Path
    • Active Low EN to Save Supply Current
    • Active Low FLAG Signals Fault Event
    • 12-Bump WLP (1.22mm x 1.62mm) Package
    • -40°C to +85°C Operating Temperature Range
  • Robust and Safety
    • Positive Overvoltage Protection up to +12.5V


  • Phablets
  • Smartphones
  • Tablets
Part Number Channels VIN
Over Voltage Trip Level
Over Volt. Flag tGATE (On)
tGATE (Off)
Oper. Temp.
min max
MAX14743 NEW! 2 -6 12 Adjustable (12V) 5.75 Open-Drain 4 0.2 -40 to +85
See All Overvoltage Protection Controllers (73)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

MAX14743EVKIT: Evaluation Kit for the MAX14743

Quality and Environmental Data

Request Reliability Report for: MAX14743 
Lead-Free Package Tin (Sn) Whisker Reports

Additional Resources

Topmark Coding MAX14743

Related Resources

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Over Voltage and Surge Protected Dual SPDT Data Line Switch

  • Distortion-Free, High-Speed Signaling
  • Flexible System Design
  • Robust and Safety