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
Yayınlandı: 2018-06-21
| Güncellenmiş: 2023-04-11
