Compact optocoupler offers energy efficiency benefits

Avago's compact low power ACPL-M50L single channel optocoupler, which operates on approximately 80 percent less drive current than today's standard 1MBd digital optocouplers, targets designers of communication interfaces, microcontroller system interfaces, switching power supplies, and digital isolation for A/D, D/A conversion applications.

The ACPL-M50L provides superior high voltage performance over the lifetime of the product while meeting safe insulation requirements for reinforced applications. Available in a small outline-5 (SO-5) package size, Avago's ACPL-M50L high speed digital optocoupler supports a wide supply voltage range from 2.7 to 24-volts and is driven by low forward drive current (IF > 3 mA) with a high current transfer ratio (CTR > 80 percent min.) to allow direct drive from a microcontroller without the need to add a buffer chip.

Separate connections for the photodiode bias and output transistor collector of the ACPL-M50L increases its speed up to a hundred times over that of a conventional photo-transistor by reducing the base-collector capacitance.

The optocoupler operates over a wide temperature range from -40 to +105 degrees C making it ideal for use in harsh industrial environments.

Key Features

• Wide supply voltage: 2.7 to 24 V Vcc Operation

• Low drive current: 3 mA

• Open collector output

• TTL compatible

• 15 kV/μS high Common-Mode Rejection at Vcm = 1500 V

• Operating temperature range: -40 to +105 degrees C

• Low propagation delay: 1 μA maximum at 5 V

• Worldwide safety approvals pending: IEC/EN/DIN EN 60747-5-5/UL 1577/CSA

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Avago's digital optocouplers