EL8176AIW-T7

Product Overview

Category: Optocoupler
Use: Signal isolation and voltage level shifting
Characteristics: High-speed, high-gain, low-power consumption
Package: 4-pin SOP (Small Outline Package)
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
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

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

Functional Features

• High-speed response time: 10 μs
• High current transfer ratio: 50% to 600%
• Low input current: 5 mA
• Low saturation voltage: 0.2 V
• Wide operating temperature range: -40°C to +85°C

Advantages

• Provides electrical isolation between input and output circuits
• Allows voltage level shifting between different systems
• High-speed operation enables quick signal transmission
• Low power consumption reduces energy usage
• Small package size saves board space

Disadvantages

• Limited collector-emitter voltage range (up to 80 V)
• Relatively low collector current capacity (up to 50 mA)
• Not suitable for high-power applications

Working Principles

The EL8176AIW-T7 is an optocoupler that utilizes a phototransistor to provide electrical isolation between the input and output circuits. When a current flows through the input LED, it emits light that activates the phototransistor. The activated phototransistor allows current to flow between its collector and emitter terminals, effectively transferring the input signal to the output side.

Detailed Application Field Plans

The EL8176AIW-T7 is commonly used in various applications, including:

1. Industrial Automation: Signal isolation in PLC (Programmable Logic Controller) systems, motor control circuits, and power supply monitoring.
2. Telecommunications: Voltage level shifting in communication interfaces, such as RS-232 and RS-485.
3. Medical Equipment: Isolation of sensitive circuits in patient monitoring devices, ECG machines, and medical imaging systems.
4. Consumer Electronics: Signal isolation in audio amplifiers, power adapters, and battery chargers.
5. Automotive: Voltage level shifting and signal isolation in automotive control modules, electric vehicle charging systems, and battery management systems.

Detailed and Complete Alternative Models

1. PC817: Photocoupler with similar specifications and package.
2. TLP621: Optocoupler with higher collector-emitter voltage and current capacity.
3. SFH617A: High-speed optocoupler with lower saturation voltage.

(Note: This list is not exhaustive and other alternative models may exist.)

This entry provides an overview of the EL8176AIW-T7 optocoupler, including its basic information, specifications, pin configuration, functional features, advantages, disadvantages, working principles, application field plans, and alternative models. With its high-speed operation, low power consumption, and electrical isolation capabilities, this optocoupler finds wide usage in industrial automation, telecommunications, medical equipment, consumer electronics, and automotive applications.