HCPL-0453-500E

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1. Description

These diode-transistor optocouplers use an insulating layer between a LED and an integrated photodetector to provide electrical insulation between input and output. Separate connections for the photodiode bias and output-transistor collector increase the speed up to a hundred times that of a conventional phototransistor coupler by reducing the base-collector capacitance. These single channel optocouplers are available in 8-Pin DIP, SO-8 and Widebody package configurations. The HCPL-4502/4503 and HCNW4502/4503 are designed for high speed TTL/TTL applications. A standard 16 mA TTL sink current through the input LED will provide enough output current for 1 TTL load and a 5.6 kΩ pull-up resistor. CTR for these devices is 19% minimum at IF=16mA.

2. Features

    1. 15 kV/µs minimum common mode transient immunity at VCM = 1500 V

    2. High speed: 1 Mb/s

    3. TTL compatible

    4. Available in 8-Pin DIP, SO-8, widebody packages

    5. Open collector output

    8. Guaranteed performance from temperature: 0°C to70°C

3. Applications

    1. High voltage insulation

    2. Video signal isolation

    3. Power transistor isolation in motor drives

    4. Line receivers

    5. Feedback element in switched mode power supplies

    6. High speed logic ground isolation

        – TTL/TTL, TTL/CMOS, TTL/LSTTL

    7. Replaces pulse transformers

    8. Replaces slow phototransistor isolators

    9. Analog signal ground isolation