Analog Devices / Maxim Integrated MAX22505 ±40V High-Speed USB Port Protector

Analog Devices Inc. MAX22505 ±40V High-Speed USB Port Protector protects a USB port on commercial and industrial equipment against faulty or incorrectly wired power supplies. The USB port is protected against connection to typical 24VDC or 24VAC systems with a max data line protection of ±40.7V and power/ground line protection up to ±50V. The VBUS, ground, and connector shield connections can be configured for any level of ESD, burst, and surge protection by choosing external components. USB data D+ and D- are protected by external diode clamps to VBUS and GND, allowing for the lowest possible insertion loss while providing high ESD and Burst protection. ADI MAX22505 is housed in a 24-pin, 4x4mm TQFN package with an exposed pad. The MAX22505 is specified for operation over the -40°C to +105°C temperature range.

Features

  • Robust communications
    • Integrated ±50VDC protection for VBUS/GND
    • Integrated ±40.7VDC protection for D+/D-
    • Thermal shutdown protected
    • -40°C to +105°C operating temperature
  • High performance
    • High (480Mb), full (12Mb), and low (1.5Mb) speed capable
    • 3.0V to 5.5V supply voltage
    • 4Ω (typ.) VBUS/D+/D- channel resistance
    • 1Ω (max.) GND channel resistance
    • High-speed USB disable mode allowing operation with high common-mode voltages
  • Flexibility
    • Transparent to USB operation speeds
    • Configurationless USB host or device protection
    • Optional external MOSFET driver for VBUS and GND Paths
  • Supports USB OTG
  • Simpler than USB isolation

Applications

  • Industrial PC
  • Programmable Logic Controller (PLC)
  • Diagnostic USB port

Application Block Diagram

Block Diagram - Analog Devices / Maxim Integrated MAX22505 ±40V High-Speed USB Port Protector
Opublikowano: 2018-06-21 | Zaktualizowano: 2023-04-11