MAX4917AEUK+TG128

Product Overview

• Category: Integrated Circuit (IC)
• Use: Signal Line Protection
• Characteristics: High-Speed, Low-Voltage, ESD Protection
• Package: SOT23-5
• Essence: Provides robust protection for signal lines against electrostatic discharge (ESD) and other voltage transients.
• Packaging/Quantity: Tape & Reel, 3000 units per reel

Specifications

• Operating Voltage: 1.8V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• ESD Protection: ±15kV (Human Body Model), ±8kV (IEC 61000-4-2 Air-Gap Discharge)
• Data Rate: Up to 480Mbps
• Low Capacitance: 0.6pF (Typical)
• Low Leakage Current: 100nA (Maximum)

Pin Configuration

The MAX4917AEUK+TG128 IC has a SOT23-5 package with the following pin configuration:

____ NC | | VCC D- | | D+ GND |____| NC

Functional Features

• Provides ESD protection for USB data lines.
• Supports high-speed data rates up to 480Mbps.
• Low capacitance ensures minimal signal distortion.
• Low leakage current minimizes power consumption.
• Compact SOT23-5 package allows for space-efficient designs.

Advantages

• Robust ESD protection safeguards sensitive circuitry.
• High-speed data transmission without signal degradation.
• Wide operating voltage range enables compatibility with various systems.
• Low power consumption prolongs battery life in portable devices.
• Small package size facilitates compact PCB layouts.

Disadvantages

• Limited to USB data line protection, not suitable for other signal lines.
• May require additional components for complete system-level protection.

Working Principles

The MAX4917AEUK+TG128 utilizes a combination of diodes and resistors to provide ESD protection. When an ESD event occurs, the diodes divert the excessive voltage away from the protected circuitry, preventing damage. The low capacitance and leakage current characteristics ensure minimal impact on signal integrity.

Application Field Plans

The MAX4917AEUK+TG128 is commonly used in various applications where ESD protection for USB data lines is required. Some potential application fields include:

1. Consumer Electronics: Protection for USB ports in smartphones, tablets, laptops, and gaming consoles.
2. Industrial Automation: Safeguarding USB interfaces in industrial control systems and equipment.
3. Automotive: ESD protection for USB connections in car infotainment systems and diagnostic tools.
4. Medical Devices: Protecting USB data lines in medical equipment and devices.
5. IoT Devices: ESD protection for USB interfaces in smart home devices and wearable technology.

Alternative Models

• MAX4890A: 8-channel ESD protection for general-purpose signal lines.
• MAX14920: ESD protection for high-speed HDMI data lines.
• MAX3221E: ESD protection for RS-232 communication lines.

These alternative models offer similar ESD protection capabilities but cater to different signal line requirements.

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