MAX14743: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
Applications/Uses
  • Phablets
  • Smartphones
  • Tablets
Parametrics
Part NumberChannelsVIN
(V)
VIN
(V)
Over Voltage Trip Level
(V)
VGATE
(V)
Over Volt. FlagtGATE (On)
(ms)
tGATE (Off)
(µs)
Oper. Temp.
(°C)
Package/Pins
minmax
MAX147432-612Adjustable (12V)5.75Open-Drain40.2-40 to +85WLP/12
Design kits & evaluation modules
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX14743EWC+ActiveWLP,;12 pin;WLP;-40°C to +85°CLead Free
MAX14743EWC+TActiveWLP,;12 pin;WLP;-40°C to +85°CLead Free