MAX4815ETE+ - English Editing Encyclopedia Entry

Product Overview

Category

The MAX4815ETE+ belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used for communication purposes, specifically in applications involving RS-485/RS-422 transceivers.

Characteristics

• The MAX4815ETE+ is a low-power transceiver that supports data rates up to 2.5Mbps.
• It operates with a single 3.3V power supply.
• This IC features a half-duplex configuration, allowing bidirectional communication on a single pair of wires.
• It offers a wide common-mode voltage range, making it suitable for use in noisy industrial environments.

Package and Quantity

The MAX4815ETE+ is available in a small-sized TQFN package, which stands for Thin Quad Flat No-Lead. The package dimensions are 4mm x 4mm. It is sold in reels or tubes, with a typical quantity of 2500 units per reel.

Specifications

• Supply Voltage: 3.3V
• Data Rate: Up to 2.5Mbps
• Operating Temperature Range: -40°C to +85°C
• Number of Pins: 16
• Package Type: TQFN

Pin Configuration

The MAX4815ETE+ has a total of 16 pins. Below is the detailed 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 Input
7. B - Inverting Driver Input
8. VCC - Power Supply
9. Y - Non-Inverting Receiver Output
10. Z - Inverting Receiver Output
11. NC - No Connection
12. NC - No Connection
13. NC - No Connection
14. NC - No Connection
15. NC - No Connection
16. NC - No Connection

Functional Features

• The MAX4815ETE+ provides a high level of ESD protection, safeguarding the IC from electrostatic discharge.
• It features a fail-safe receiver, ensuring that the receiver output is in a known state when the inputs are unconnected or shorted.
• This transceiver supports a wide range of common-mode voltages, allowing reliable communication in noisy environments.
• It has a low quiescent current, making it suitable for battery-powered applications.

Advantages and Disadvantages

Advantages

• Low-power consumption
• Wide common-mode voltage range
• High ESD protection
• Fail-safe receiver

Disadvantages

• Limited data rate (up to 2.5Mbps)
• Half-duplex configuration only

Working Principles

The MAX4815ETE+ operates based on the RS-485/RS-422 standards. It uses differential signaling to transmit and receive data over long distances. The driver section converts the logic-level signals into differential voltages, while the receiver section converts the differential voltages back into logic-level signals. The half-duplex configuration allows bidirectional communication on a single pair of wires by enabling either the driver or receiver at a time.

Detailed Application Field Plans

The MAX4815ETE+ finds applications in various fields, including:

1. Industrial Automation: It is used for communication between PLCs (Programmable Logic Controllers), sensors, and actuators in industrial automation systems.
2. Building Automation: It enables communication between different building control systems, such as HVAC (Heating, Ventilation, and Air Conditioning) systems, lighting control, and security systems.
3. Instrumentation: It is utilized in data acquisition systems, allowing reliable transmission of sensor data over long distances.
4. Automotive: It is employed in automotive applications for communication between various electronic control units (ECUs) within the vehicle.

Detailed and Complete Alternative Models

• MAX4816ETE+: Similar to MAX4815ETE+, but with a higher data rate of 20Mbps.
• MAX485EESA+: A compatible alternative with a lower supply voltage range of 4.75V to 5.25V.
• SN65HVD485EDR: Another RS-485 transceiver option with a wide supply voltage range and enhanced ESD protection.

In conclusion, the MAX4815ETE+ is a low-power RS-485/RS-422 transceiver IC that offers a wide common-mode voltage range and high ESD protection. It is commonly used in industrial automation, building automation, instrumentation, and automotive applications. While it has limitations in terms of data rate and half-duplex configuration, there are alternative models available with different specifications to suit specific requirements.