MAX4838EXT+G104

Product Overview

• Category: Integrated Circuit (IC)
• Use: Communication and Networking
• Characteristics: Low-power, Half-Duplex RS-485/RS-422 Transceiver
• Package: 20-TSSOP
• Essence: Transceiver IC for industrial communication protocols
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 3V to 5.5V
• Data Rate: Up to 2.5 Mbps
• Operating Temperature Range: -40°C to +85°C
• Number of Drivers/Receivers: 1/1
• ESD Protection: ±15kV Human Body Model (HBM), ±8kV IEC 61000-4-2 Air-Gap Discharge, ±6kV IEC 61000-4-2 Contact Discharge

Pin Configuration

The MAX4838EXT+G104 has a 20-pin TSSOP package with the following pin configuration:

1. DE (Driver Output Enable)
2. RE (Receiver Output Enable)
3. RO (Receiver Output)
4. DI (Driver Input)
5. GND (Ground)
6. A (Non-Inverting Driver Output)
7. B (Inverting Driver Output)
8. VCC (Supply Voltage)
9. Y (Non-Inverting Receiver Input)
10. Z (Inverting Receiver Input)
11. VCC (Supply Voltage)
12. NC (No Connection)
13. NC (No Connection)
14. NC (No Connection)
15. NC (No Connection)
16. NC (No Connection)
17. NC (No Connection)
18. NC (No Connection)
19. NC (No Connection)
20. NC (No Connection)

Functional Features

• Half-duplex transceiver for RS-485/RS-422 communication protocols
• Low-power operation suitable for battery-powered devices
• High data rate capability up to 2.5 Mbps
• Robust ESD protection for reliable operation in harsh environments

Advantages and Disadvantages

Advantages: - Low power consumption - Wide supply voltage range - High data rate capability - Robust ESD protection

Disadvantages: - Limited to half-duplex communication

Working Principles

The MAX4838EXT+G104 is designed to facilitate communication between devices using the RS-485/RS-422 protocols. It provides a half-duplex interface, allowing data transmission in both directions but not simultaneously. The driver section converts the logic-level signals into differential voltages suitable for long-distance transmission, while the receiver section converts the received differential signals back into logic-level signals.

Detailed Application Field Plans

The MAX4838EXT+G104 is commonly used in various industrial applications that require reliable and high-speed communication over long distances. Some typical application fields include:

1. Industrial Automation: Used in PLCs (Programmable Logic Controllers), motor control systems, and industrial sensors.
2. Building Automation: Employed in HVAC (Heating, Ventilation, and Air Conditioning) systems, lighting control, and access control systems.
3. Instrumentation: Utilized in data acquisition systems, test and measurement equipment, and scientific instruments.
4. Automotive: Integrated into automotive diagnostic tools, vehicle communication networks, and telematics systems.
5. Renewable Energy: Applied in solar power inverters, wind turbine control systems, and smart grid infrastructure.

Detailed and Complete Alternative Models

1. SN65HVD485E: Half-Duplex RS-485 Transceiver, 3.3V to 5V supply voltage range, 20-pin SOIC package.
2. LTC2854: Low Power RS-485 Transceiver, 3V to 5.5V supply voltage range, 20-pin SSOP package.
3. ADM2483: Isolated RS-485 Transceiver, 5V supply voltage, 16-pin SOIC package.

These alternative models offer similar functionality and can be considered as substitutes for the MAX4838EXT+G104 in various applications.

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