MAX22505

PRODUCTION

±40V High-Speed USB Port Protector

Industry's First ±40V High-Speed USB Port Protector

Data Sheet (Rev. 2) Product Selection Table

Part Models: 2
1ku List Price: Starting From $1.95

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Overview

Robust Communications
- Integrated ±50V dc Protection for V_BUS/GND
- Integrated ±40.7V dc 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) V_BUS/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 V_BUS and GND Paths
Supports USB OTG
Simpler Than USB Isolation

The MAX22505 is designed to protect a USB port on commercial and industrial equipment against damage due to faulty or incorrectly wired power supplies. The USB port is protected against connection to typical 24V_DC or 24V_AC systems with a max data line protection of ±40.7V and power/ground line protection up to ±50V.

V_BUS, 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 V_BUS and GND, allowing for the lowest possible insertion loss while providing high ESD and Burst protection.

The MAX22505 is housed in a 24-pin, 4mm x 4mm TQFN package with exposed pad and is specified for operation over the -40°C to +105°C temperature range.

Design Solution: Protecting Your USB Port Doesn’t Have to Slow It Down ›

Applications

Diagnostic USB port
Industrial PC
Programmable Logic Controller (PLC)

Part Models: 2
1ku List Price: Starting From $1.95

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
MAX22505GTG+	24-TQFN-4X4X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX22505GTG+T	24-TQFN-4X4X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Tools & Simulations

IBIS Model 1

MAX22505 IBIS Model

Evaluation Kits

Evaluation Kit for the MAX22505

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Features and Benefits

Derives Power From a USB Host
Proven PCB Layout
Fully Assembled and Tested

Product Details

The MAX22505 evaluation kit (EV kit) is a fully assembled and tested circuit board that evaluates the MAX22505 ±40V USB port protector.

The EV kit consists of 3 independent sections: A highpower peripheral section, a low-power peripheral section, and a high-power host section. Each section demonstrates protecting a USB bus from overvoltage conditions on the USB lines.

The high-power peripheral section adds external MOSFET switches to the low-power peripheral circuit, reducing losses to power delivered to the peripheral.

The EV kit powers completely from the USB host, such as a laptop, and requires no other power source. For peripheral applications, an isolated supply is offered for convenience but is not necessary in customer applications. Test access points are provided to optionally power each circuit section externally.

Applications

Diagnostic USB port
Industrial PC
Programmable Logic Controller (PLC)

Resources

MAX22505EVKIT Gerber File
1/1/0001

MAX22505EVKIT Gerber File - Design Files
11/6/2023

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