ACPL-C78A-560E

Product Overview

Category

ACPL-C78A-560E belongs to the category of optocouplers or optoisolators.

Use

Optocouplers are electronic components used to transfer electrical signals between two isolated circuits by utilizing light. 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 have high voltage isolation capabilities, typically ranging from hundreds to thousands of volts.
• Optocouplers offer fast response times and high switching speeds.
• They are resistant to electromagnetic interference (EMI).
• These devices can operate in a wide temperature range.

Package

The ACPL-C78A-560E optocoupler is available in a compact DIP-8 package.

Essence

The essence of ACPL-C78A-560E lies in its ability to provide electrical isolation and signal transmission between two separate circuits using light.

Packaging/Quantity

The ACPL-C78A-560E optocoupler is typically packaged in reels or tubes and is available in quantities suitable for both small-scale and large-scale applications.

Specifications

• Isolation Voltage: 5000 Vrms
• Current Transfer Ratio: 50% to 600%
• Collector-Emitter Voltage: 80 V
• Forward Current: 10 mA
• Operating Temperature Range: -40°C to +100°C

Detailed Pin Configuration

The ACPL-C78A-560E optocoupler has the following pin configuration:

1. Anode (LED+)
2. Cathode (LED-)
3. No Connection
4. Emitter (Phototransistor Collector)
5. Base (Phototransistor Base)
6. Collector (Phototransistor Emitter)
7. No Connection
8. Vcc (Supply Voltage)

Functional Features

• The ACPL-C78A-560E optocoupler provides high-speed signal transmission and electrical isolation.
• It offers reliable performance in harsh environments due to its wide operating temperature range.
• This optocoupler has a high current transfer ratio, ensuring accurate signal transmission.

Advantages and Disadvantages

Advantages

• Provides electrical isolation between circuits, protecting sensitive components.
• Fast response times and high switching speeds.
• Resistant to electromagnetic interference.
• Wide operating temperature range.

Disadvantages

• Limited voltage and current ratings compared to other isolation techniques.
• Requires additional circuitry for proper operation.

Working Principles

The ACPL-C78A-560E optocoupler operates based on the principle of light-emitting diodes and phototransistors. When an electrical signal is applied to the LED, it emits light. This light is then detected by the phototransistor, which generates an output signal proportional to the input signal. The electrical isolation between the input and output sides is achieved by the absence of any direct electrical connection.

Detailed Application Field Plans

The ACPL-C78A-560E optocoupler finds applications in various fields, including:

1. Industrial automation: Used for signal isolation and noise reduction in control systems.
2. Power electronics: Protects low-voltage control circuits from high-voltage power circuits.
3. Medical equipment: Ensures patient safety by providing electrical isolation in medical devices.
4. Telecommunications: Used for signal transmission and protection in communication systems.
5. Automotive electronics: Provides isolation and noise immunity in automotive control systems.

Detailed and Complete Alternative Models

1. ACPL-C78B-560E: Similar specifications with enhanced current transfer ratio.
2. ACPL-C78C-560E: Higher voltage rating and improved noise immunity.
3. ACPL-C78D-560E: Lower current transfer ratio but higher operating temperature range.

These alternative models offer similar functionality to the ACPL-C78A-560E optocoupler, with slight variations in specifications to cater to different application requirements.

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