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.

Features

• High speed: 1 Mb/s

• TTL compatible

• Available in 8-Pin DIP, SO-8, widebody packages

• Open collector output

• Safety approval

UL Recognized – 3750 Vrms for 1 minute (5000 Vrms for 1 minute for HCNW and Option 020 devices) per UL1577 CSA Approved

IEC/EN/DIN EN 60747-5-2 Approved

– VIORM = 560 V peak for SO8 devices

– VIORM = 630 V peak for DIP 300mil devices

– VIORM = 1414 V peak for DIP 400mil (widebody) devices

• Dual channel version available (253X/053X/0534)

Applications

• High voltage insulation

• Video signal isolation

• Line receivers

• Feedback element in switched mode power supplies

• High speed logic ground isolation

– TTL/TTL, TTL/CMOS, TTL/LSTTL

• Replaces pulse transformers

• Replaces slow phototransistor isolators

• Analog signal ground isolation