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Avago markets ultra low power optocoupler

Posted: 06 Jul 2012 ?? ?Print Version ?Bookmark and Share

Keywords:optocoupler? ultra low power? CMOS?

Avago Technologies has introduced the ACNW261L ultra low power 10 MBd digital CMOS optocoupler for high voltage insulation requirements. The ACNW261L is useful in renewable energy generation systems, industrial, medical equipment and electrical equipment used in harsh environments applications.

Applications for the new 10 MBd optocouplers include CANBus, RS232, RS485, I2C, digital Fieldbus, and analog-to-digital and digital-to-analog converter interfaces. By meeting medical equipment standard IEC 60601-1 rev 3 requirements, medical equipment suppliers can also use the new ACNW261L digital optocoupler with 1mm internal clearance.

The low power ACNW261L has a reinforced insulation working voltage of 1414 VPEAK. Supply current is under 1.5mA over the C40C to 105C temperature range. Both 3.3V and 5V applications are supported. The input LED current was designed to be a low 4mA.

The ACNW261L features input-to-output insulation voltage of 5000 VRMS. With reinforced insulation, the new optocoupler meets the IEC 607475-5-5 working voltage requirement of 1414 VPEAK, internal clearance of 1mm, external creepage of 10mm, and external clearance of 9.6mm. By using an internal Faraday shield, the ACNW261L has excellent common mode transient rejection performance of 20 kV/?s minimum, 35 kV/?s typical at 1000V common mode voltage.

In addition to performance guaranteed over the C40C to 105C temperature range, functional features increase application versatility, system reliability and performance. An enable pin sets the CMOS output stage to a high impedance state for bus interface versatility. Slew rate controlled output ensures stable rise and fall times over temperature and operating conditions, an especially important feature for parallel interface applications. The

The ACNW261L single-channel optocoupler is now available in a 400-mil wide 8-lead dual-in-line (DIP-8) package.

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