ACPL-C79A-000E

Product Overview

Category

ACPL-C79A-000E belongs to the category of optocouplers or optoisolators.

Use

Optocouplers are electronic components used to transfer electrical signals between two isolated circuits. They provide electrical isolation and protect sensitive components from high voltages or noise.

Characteristics

• Optocouplers consist of an LED (light-emitting diode) and a phototransistor or photodiode.
• They can transmit signals across a wide range of frequencies.
• Optocouplers offer high voltage isolation, typically up to several kilovolts.
• They have low power consumption and are compact in size.

Package

The ACPL-C79A-000E optocoupler is available in a small outline package (SOP).

Essence

The essence of ACPL-C79A-000E lies in its ability to provide galvanic isolation between input and output circuits, ensuring signal integrity and protection against voltage spikes or surges.

Packaging/Quantity

The ACPL-C79A-000E optocoupler is typically sold in reels containing a specific quantity, such as 1000 units per reel.

Specifications

• Isolation Voltage: 3750 Vrms
• Current Transfer Ratio: 50% to 600%
• Operating Temperature Range: -40°C to +105°C
• Maximum Forward Voltage: 1.5V
• Maximum Reverse Voltage: 6V
• Rise Time: 18 ns
• Fall Time: 15 ns

Detailed Pin Configuration

The ACPL-C79A-000E optocoupler has a 4-pin configuration:

1. Pin 1: Anode (LED Anode)
2. Pin 2: Cathode (LED Cathode)
3. Pin 3: Emitter (Phototransistor Emitter)
4. Pin 4: Collector (Phototransistor Collector)

Functional Features

• High-speed response and switching capability.
• Low input-to-output propagation delay.
• Wide operating temperature range.
• High common-mode rejection ratio.
• Low power consumption.

Advantages and Disadvantages

Advantages

• Provides electrical isolation between circuits, preventing noise or voltage spikes from affecting sensitive components.
• Compact size allows for easy integration into various electronic systems.
• Wide operating temperature range makes it suitable for harsh environments.
• High-speed response enables efficient signal transmission.

Disadvantages

• Limited current transfer ratio may require additional amplification in certain applications.
• Optocouplers are susceptible to degradation over time due to LED aging.

Working Principles

The ACPL-C79A-000E optocoupler operates based on the principle of light-emitting diode and phototransistor interaction. When an electrical signal is applied to the LED, it emits light. This light is then detected by the phototransistor, which generates a corresponding electrical signal at its output. The input and output circuits are electrically isolated, ensuring signal integrity and protection.

Detailed Application Field Plans

The ACPL-C79A-000E optocoupler finds applications in various fields, including:

1. Industrial Automation: Used for signal isolation in motor control systems, power supplies, and PLCs (Programmable Logic Controllers).
2. Telecommunications: Ensures signal integrity in high-speed data transmission systems, such as Ethernet or USB interfaces.
3. Medical Equipment: Provides galvanic isolation in patient monitoring devices, electrocardiograms, and medical imaging systems.
4. Automotive Electronics: Used for isolation in automotive communication networks, battery management systems, and electric vehicle charging stations.

Detailed and Complete Alternative Models

1. ACPL-C79B-000E: Similar to ACPL-C79A-000E with improved current transfer ratio.
2. ACPL-C79C-000E: Higher voltage isolation capability compared to ACPL-C79A-000E.
3. ACPL-C79D-000E: Enhanced temperature range for extreme environments.

These alternative models offer similar functionality and can be considered based on specific application requirements.

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