EL8170IS-T7

Product Overview

• Category: Optocoupler
• Use: Signal isolation and voltage level shifting
• Characteristics: High-speed, high-gain, low-power consumption
• Package: Surface Mount Device (SMD)
• 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: 5 V
• Collector Current: 50 mA
• Power Dissipation: 150 mW
• Rise Time: 18 ns
• Fall Time: 15 ns
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The EL8170IS-T7 optocoupler has a 4-pin configuration:

1. Anode: Connects to the anode of the internal LED.
2. Cathode: Connects to the cathode of the internal LED.
3. Collector: Connects to the collector of the internal phototransistor.
4. Emitter: Connects to the emitter of the internal phototransistor.

Functional Features

• High-speed response: The EL8170IS-T7 offers fast rise and fall times, making it suitable for applications requiring quick signal transmission.
• High gain: The optocoupler provides high current transfer ratio (CTR), ensuring efficient signal amplification.
• Low power consumption: With a low power dissipation of 150 mW, the device helps conserve energy in electronic systems.

Advantages and Disadvantages

Advantages: - Fast response time enables high-speed data transmission. - High gain amplifies weak signals effectively. - Low power consumption reduces energy usage.

Disadvantages: - Limited collector-emitter voltage of 80 V may restrict certain high-voltage applications. - The optocoupler is only available in surface mount package, which may not be suitable for all circuit designs.

Working Principles

The EL8170IS-T7 optocoupler consists of an LED and a phototransistor. When a current flows through the LED, it emits light that activates the phototransistor. The phototransistor then allows current to flow between its collector and emitter terminals, providing signal isolation and voltage level shifting.

Detailed Application Field Plans

The EL8170IS-T7 is commonly used in the following applications:

1. Industrial Automation: Signal isolation in control systems, motor drives, and power supplies.
2. Telecommunications: Voltage level shifting in communication interfaces, such as RS-232 and RS-485.
3. Medical Equipment: Isolation of sensitive circuits in medical devices for patient safety.
4. Automotive Electronics: Signal transmission and isolation in automotive control modules.

Detailed and Complete Alternative Models

1. EL817C: Phototransistor output optocoupler with similar specifications and package.
2. PC817: Photocoupler with similar characteristics but different pin configuration (6-pin DIP package).
3. TLP521-1: Optocoupler with higher collector-emitter voltage rating (100 V) and similar speed characteristics.

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