EL8173ISZ

Product Overview

• Category: Optocoupler
• Use: Signal isolation and voltage level shifting in electronic circuits
• Characteristics: High-speed, high-gain, low-power consumption
• Package: SOP-4
• Essence: Phototransistor output optocoupler
• Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

• Isolation Voltage: 3750 Vrms
• Collector-Emitter Voltage: 80 V
• Emitter-Collector Voltage: 7 V
• Collector Current: 50 mA
• Power Dissipation: 150 mW
• Operating Temperature Range: -55°C to +110°C

Pin Configuration

The EL8173ISZ optocoupler has the following pin configuration:

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| | 1 | | 2 |____| | | 3 | | 4 |____| ```

Pin 1: Anode (A) Pin 2: Cathode (K) Pin 3: Emitter (E) Pin 4: Collector (C)

Functional Features

• High-speed response time: Allows for quick signal transmission and switching.
• High gain: Provides amplification of weak input signals.
• Low power consumption: Energy-efficient operation.
• Phototransistor output: Enables current flow based on incident light intensity.

Advantages and Disadvantages

Advantages: - Fast response time enhances circuit performance. - High gain amplifies weak signals effectively. - Low power consumption reduces energy usage. - Phototransistor output allows for easy integration into various circuits.

Disadvantages: - Limited maximum collector-emitter voltage may restrict certain applications. - Sensitivity to ambient light may affect performance in certain environments.

Working Principles

The EL8173ISZ optocoupler consists of an infrared LED and a phototransistor. When a current is applied to the LED, it emits infrared light. This light is then incident on the phototransistor, causing it to conduct current. The amount of current flowing through the phototransistor depends on the intensity of the incident light. By controlling the current through the LED, the output current of the phototransistor can be modulated, providing signal isolation and voltage level shifting capabilities.

Detailed Application Field Plans

The EL8173ISZ optocoupler finds applications in various electronic circuits, including:

1. Switching Power Supplies: Isolating control signals and feedback signals.
2. Industrial Automation: Signal isolation in motor control circuits.
3. Telecommunications: Voltage level shifting in communication interfaces.
4. Audio Equipment: Isolation of audio signals for noise reduction.
5. Medical Devices: Isolation of sensitive circuits for patient safety.

Detailed and Complete Alternative Models

• EL817C
• PC817
• TLP521-1
• SFH620A-3
• PS2501-1

These alternative models offer similar functionality and can be used as substitutes for the EL8173ISZ optocoupler in various applications.

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