ISL32450EIUZ

Product Overview

Category: Integrated Circuit (IC)

Use: ISL32450EIUZ is a high-speed, differential line transceiver designed for RS-485 and RS-422 communication protocols. It provides robust data transmission over long distances in industrial automation, building control systems, and other applications.

Characteristics: - High-speed data rates up to 20 Mbps - Wide common-mode range (-7V to +12V) - Low quiescent current (<1µA in shutdown mode) - Enhanced ESD protection (±15kV HBM) - Industrial temperature range (-40°C to +85°C)

Package: The ISL32450EIUZ comes in a small 16-lead QFN package, which offers excellent thermal performance and space-saving benefits.

Essence: This IC serves as a reliable interface between microcontrollers or other digital devices and the RS-485/RS-422 bus, ensuring secure and efficient data transfer.

Packaging/Quantity: The ISL32450EIUZ is typically sold in reels of 2500 units.

Specifications

• Supply Voltage Range: 3V to 5.5V
• Number of Channels: 1
• Data Rate: Up to 20 Mbps
• Operating Temperature Range: -40°C to +85°C
• Shutdown Current: <1µA
• Common-Mode Voltage Range: -7V to +12V
• ESD Protection: ±15kV (HBM)
• Package Type: 16-Lead QFN

Pin Configuration

The ISL32450EIUZ features a 16-pin QFN 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. VCC - Power Supply
7. A - Non-Inverting Receiver Input
8. B - Inverting Receiver Input
9. Y - Non-Inverting Driver Output
10. Z - Inverting Driver 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

• Robust RS-485/RS-422 transceiver
• High-speed data transmission
• Wide common-mode voltage range for reliable operation
• Low power consumption in shutdown mode
• Enhanced ESD protection for increased reliability

Advantages and Disadvantages

Advantages: - High-speed data rates enable efficient communication - Wide common-mode range allows for flexible system integration - Low quiescent current minimizes power consumption - Enhanced ESD protection ensures robustness in harsh environments

Disadvantages: - Limited to a single channel, not suitable for multi-channel applications - Requires external components for complete functionality

Working Principles

The ISL32450EIUZ operates as a differential line transceiver for RS-485 and RS-422 protocols. It converts the logic-level signals from microcontrollers or digital devices into balanced differential signals suitable for long-distance transmission. The receiver section provides high input impedance and common-mode rejection, while the driver section delivers robust output signals.

Detailed Application Field Plans

The ISL32450EIUZ is widely used in various industrial automation and control systems, including: - Factory automation - Process control - Building management systems - HVAC (Heating, Ventilation, and Air Conditioning) control - Security systems - Access control systems - Energy management systems

Alternative Models

1. MAX485EESA+: This IC offers similar functionality and features as the ISL32450EIUZ, with a slightly different pin configuration. It is available in an 8-pin SOIC package.
2. SN65HVD485E: Another alternative with comparable specifications, this IC comes in an 8-pin SOIC package and is suitable for RS-485 applications.

These alternative models can be considered based on specific application requirements and availability.

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