MAX4835ETT18BD2+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Transceiver
• Characteristics: Low-power, half-duplex RS-485/RS-422 transceiver
• Package: 6-pin Thin SOT23 (TDFN) package
• Essence: Provides a robust and reliable communication interface for industrial applications
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• Data Rate: Up to 250kbps
• Operating Temperature Range: -40°C to +85°C
• Number of Drivers/Receivers: 1/1
• Half-Duplex Operation
• ESD Protection: ±15kV Human Body Model (HBM), ±8kV IEC61000-4-2 Air-Gap Discharge, ±6kV IEC61000-4-2 Contact Discharge

Detailed Pin Configuration

The MAX4835ETT18BD2+T has the following pin configuration:

1. DE/RE - Driver Enable/Receiver Enable
2. A - Non-Inverting Driver Output/Receiver Input
3. B - Inverting Driver Output/Receiver Input
4. GND - Ground
5. VCC - Power Supply
6. Y - Receiver Output

Functional Features

• Low quiescent current consumption
• High receiver input impedance
• Short-circuit protection
• Thermal shutdown protection
• Enhanced ESD protection
• Wide supply voltage range

Advantages and Disadvantages

Advantages: - Low power consumption - Robust communication interface - Wide operating temperature range - Enhanced ESD protection

Disadvantages: - Limited data rate compared to some other transceivers - Single driver/receiver configuration

Working Principles

The MAX4835ETT18BD2+T is a half-duplex RS-485/RS-422 transceiver. It allows bidirectional communication over a single twisted-pair cable, enabling reliable data transmission in industrial environments. The driver and receiver sections of the IC are enabled by the DE/RE pin. When DE/RE is high, the driver is enabled, allowing data transmission from the A or B inputs to the Y output. When DE/RE is low, the receiver is enabled, and the Y input receives data from the A or B outputs.

Detailed Application Field Plans

The MAX4835ETT18BD2+T is commonly used in various industrial applications, including:

1. Building Automation Systems: Enables communication between sensors, actuators, and control systems.
2. Industrial Control Systems: Facilitates data exchange between PLCs, motor drives, and other industrial equipment.
3. Process Control Systems: Provides a reliable interface for monitoring and controlling processes in manufacturing plants.
4. HVAC Systems: Allows communication between thermostats, dampers, and HVAC controllers.
5. Access Control Systems: Enables secure communication between access control panels and card readers.

Detailed and Complete Alternative Models

1. MAX485: Similar functionality with a wider supply voltage range (3.0V to 5.5V).
2. SN75176: Compatible with RS-485 and RS-422 standards, with higher data rates.
3. LTC1480: Offers low power consumption and enhanced ESD protection.

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