EL8170FSZ

Product Overview

Category: Optocoupler
Use: Signal isolation and voltage level shifting
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

• Input Current: 5 mA
• Collector-Emitter Voltage: 80 V
• Collector Current: 50 mA
• Power Dissipation: 150 mW
• Isolation Voltage: 3750 Vrms
• Rise Time: 18 µs
• Fall Time: 15 µs

Detailed Pin Configuration

The EL8170FSZ optocoupler has a total of four pins:

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

Functional Features

• High-speed response time for efficient signal transmission.
• Phototransistor output provides electrical isolation between input and output circuits.
• Low power consumption ensures energy efficiency.
• Compact SOP-4 package allows for space-saving integration.

Advantages

• Provides galvanic isolation, protecting sensitive components from voltage spikes and noise.
• Suitable for applications requiring voltage level shifting or signal isolation.
• High-speed operation enables reliable data transmission in various systems.
• Low power consumption reduces energy costs and heat generation.

Disadvantages

• Limited maximum collector-emitter voltage may restrict use in certain high-voltage applications.
• Sensitivity to ambient light may require additional shielding in some environments.
• Requires careful consideration of input current to ensure proper operation.

Working Principles

The EL8170FSZ optocoupler utilizes an infrared LED as the input and a phototransistor as the output. When an electrical signal is applied to the input (pins A and K), the infrared LED emits light, which is then detected by the phototransistor (pins E and C). The phototransistor's collector current varies based on the intensity of the received light, providing an isolated output signal.

Detailed Application Field Plans

1. Industrial Automation: Signal isolation in PLCs, motor control systems, and power supply circuits.
2. Telecommunications: Voltage level shifting in communication interfaces, such as RS-232 to TTL conversion.
3. Medical Devices: Isolation of sensitive measurement circuits from high-voltage components.
4. Automotive Electronics: Signal conditioning and isolation in automotive control systems.
5. Consumer Electronics: Isolation and voltage level shifting in audio/video equipment and home automation systems.

Detailed and Complete Alternative Models

1. EL817C: Phototransistor output optocoupler with higher collector-emitter voltage rating.
2. PC817: Photocoupler with similar characteristics but in a different package (DIP-4).
3. TLP521-4: Optocoupler with higher isolation voltage and lower input current requirements.
4. SFH617A-4: High-speed optocoupler with improved rise and fall times.
5. PS2501-1: Photocoupler with higher collector current capability.

(Note: These alternative models are provided for reference and may have slight variations in specifications and pin configuration.)

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