EL8170ISZ-T7

Product Overview

Category: Optocoupler
Use: Signal isolation and voltage level shifting
Characteristics: High-speed, high-gain optocoupler with phototransistor output
Package: SOP-4 mini-flat package
Essence: Optocoupler IC
Packaging/Quantity: Tape and reel packaging, 2500 units per reel

Specifications

• Isolation Voltage: 3750 Vrms
• Collector-Emitter Voltage: 80 V
• Current Transfer Ratio: 50% to 600%
• Rise Time: 18 ns
• Fall Time: 15 ns
• Operating Temperature Range: -40°C to +100°C

Detailed Pin Configuration

The EL8170ISZ-T7 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
• High current transfer ratio
• Low input current requirement
• Phototransistor output for improved linearity
• Compact and space-saving package

Advantages and Disadvantages

Advantages: - Fast switching speed - High gain - Wide operating temperature range - Excellent noise immunity - Small form factor

Disadvantages: - Limited collector-emitter voltage rating - Sensitive to ambient light interference

Working Principles

The EL8170ISZ-T7 optocoupler utilizes an LED and a phototransistor to achieve signal isolation and voltage level shifting. When an input signal is applied to the LED, it emits light that activates the phototransistor. The phototransistor then allows current to flow from the collector to the emitter, providing an isolated output signal that replicates the input signal.

Detailed Application Field Plans

The EL8170ISZ-T7 optocoupler finds applications in various fields, including:

1. Industrial automation: Signal isolation between control circuits and power circuits.
2. Telecommunications: Voltage level shifting in communication interfaces.
3. Medical equipment: Isolation of sensitive analog signals for patient safety.
4. Automotive electronics: Isolation of high-voltage signals in electric vehicles.
5. Power supply systems: Protection against voltage spikes and noise.

Detailed and Complete Alternative Models

1. PC817: A widely used general-purpose optocoupler with similar specifications.
2. HCPL-4506: High-speed optocoupler with higher isolation voltage and lower input current.
3. TLP621: Photocoupler with a wide operating temperature range and low coupling capacitance.

These alternative models offer similar functionality and can be considered as substitutes for the EL8170ISZ-T7 depending on specific requirements.

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