ISL83385EIBZ

Product Overview

Category: Integrated Circuit (IC)

Use: The ISL83385EIBZ is a high-speed, low-power, dual-channel RS-485/RS-422 transceiver. It is designed for use in industrial automation, building automation, and other applications that require reliable long-distance communication.

Characteristics: - High-speed data transmission up to 20 Mbps - Low power consumption - Wide operating voltage range: 3V to 5.5V - ESD protection up to ±15kV (Human Body Model) - Half-duplex or full-duplex operation - Supports up to 256 nodes on the bus

Package: The ISL83385EIBZ is available in a small 8-pin SOIC package, which provides ease of integration into various circuit designs.

Essence: This IC serves as a bridge between microcontrollers or other digital devices and the RS-485/RS-422 communication bus, enabling reliable and efficient data transfer over long distances.

Packaging/Quantity: The ISL83385EIBZ is typically sold in reels containing 2500 units per reel.

Specifications

• Supply Voltage Range: 3V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Data Rate: Up to 20 Mbps
• Number of Channels: 2
• Receiver Input Hysteresis: 50mV
• Maximum Bus Length: 1200m (at lower data rates)
• ESD Protection: ±15kV (Human Body Model)

Pin Configuration

The ISL83385EIBZ features an 8-pin SOIC package with the following pin configuration:

Pin 1: A Driver Output Pin 2: B Driver Output Pin 3: GND Pin 4: B Receiver Input Pin 5: A Receiver Input Pin 6: Vcc Pin 7: DE (Driver Enable) Pin 8: RE (Receiver Enable)

Functional Features

• Driver Output Short-Circuit Protection
• Receiver Input Fail-Safe Protection
• Thermal Shutdown Protection
• Low Power Consumption in Standby Mode
• Glitch-Free Power-Up and Power-Down Protection

Advantages and Disadvantages

Advantages: - High-speed data transmission capability - Wide operating voltage range allows for flexibility in various applications - Robust ESD protection ensures reliability in harsh environments - Small package size enables easy integration into circuit designs - Low power consumption helps to minimize energy usage

Disadvantages: - Limited number of channels (2) - Maximum bus length decreases at higher data rates

Working Principles

The ISL83385EIBZ operates as a transceiver, converting the digital signals from microcontrollers or other devices into RS-485/RS-422 compatible signals. It uses differential signaling to achieve noise immunity and long-distance communication. The driver section amplifies the digital signals and drives them onto the bus, while the receiver section receives the incoming signals and converts them back into digital form.

Detailed Application Field Plans

The ISL83385EIBZ is widely used in various industrial and building automation applications, including: - Factory automation systems - Process control systems - HVAC (Heating, Ventilation, and Air Conditioning) systems - Access control systems - Security systems - Energy management systems

Its high-speed data transmission capability, low power consumption, and robustness make it suitable for applications that require reliable long-distance communication.

Detailed and Complete Alternative Models

• MAX485EESA+: Similar dual-channel RS-485/RS-422 transceiver with a wide operating voltage range and high-speed data transmission capability.
• SN65HVD485E: Dual-channel RS-485 transceiver with enhanced ESD protection and low power consumption.
• LTC2854: Low-power, half-duplex RS-485 transceiver with integrated fail-safe circuitry.

These alternative models offer similar functionality and can be considered as alternatives to the ISL83385EIBZ based on specific application requirements.

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