ISOFACE™ output switches

Galvanically-isolated 8-channel output switches

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Overview

ISOFACE™ output switches allow an efficient IEC61131-2 compliant design of digital I/O modules that are widely used in PLC systems. ISOFACE™ IC's provide a high level of functional integration reducing the external BOM and PCB space demand. They offer advanced features including VBB monitoring and comprehensive diagnosis with a low demand of GPIOs. The robust integrated galvanic isolation underlines their reliability and longevity in the field.

Key Features

  • 8 channels: load current from 0.6 - 1.2A
  • Protected against short-circuit
  • Overtemperature protected
  • Precise current limitation
  • Output clamping for inductive loads
  • Suitable for all type of loads
  • Comprehensive diagnostic feedback
  • VBB voltage monitoring
  • Compliant to IEC61131-2
  • UL508 certified

Products

About

ISOFACE™ galvanically-isolated 8-channel output switches

ISOFACE™ output switches support a maximum nominal load current of 1.2 A per channel. Parallel combinations enable switching loads of up to 2 A, while inductive clamping diodes are already integrated, eliminating the need for additional clamping diodes to absorb commutation power when switching inductive loads.

Complete integration with ISOFACE™ output switches

ISOFACE™ output switches offers robust and intelligent galvanically isolated switches, interfacing with microcontrollers or bus- ASICs. The integrated 8-channel high-side power switches are versatile, capable of driving various resistive, inductive, or capacitive loads.

Improve system safety with ISOFACE™ output switches

ISOFACE™ output switches are extremely rugged, featuring short-circuit protection and temperature monitoring for each switch output. In case of undervoltage, overload, or overtemperature, the microcontroller or bus-ASIC receives diagnostic feedback, and the respective output channel is turned off. Monitoring the load-side supply voltage (Vbb) ensures proper MOSFET output stage switching, automatically turning off outputs if a critical minimum level is reached. The auto-restart function reactivates the output channel when undervoltage, overload, or overtemperature issues are resolved. Additionally, a disable input pin allows asynchronous turn-off of all outputs, enhancing system safety and supporting system maintenance.

Setting the standard in diagnostics

ISO2H823V2.5 offers exceptional diagnostics, distinguishing up to five types of events on a channel-level and five additional types on the IC-level. These diagnostic capabilities allow for preventive maintenance and expedite error detection during unscheduled downtimes, reducing the valuable time to system restart.

ISOFACE™ galvanically-isolated 8-channel output switches

ISOFACE™ output switches support a maximum nominal load current of 1.2 A per channel. Parallel combinations enable switching loads of up to 2 A, while inductive clamping diodes are already integrated, eliminating the need for additional clamping diodes to absorb commutation power when switching inductive loads.

Complete integration with ISOFACE™ output switches

ISOFACE™ output switches offers robust and intelligent galvanically isolated switches, interfacing with microcontrollers or bus- ASICs. The integrated 8-channel high-side power switches are versatile, capable of driving various resistive, inductive, or capacitive loads.

Improve system safety with ISOFACE™ output switches

ISOFACE™ output switches are extremely rugged, featuring short-circuit protection and temperature monitoring for each switch output. In case of undervoltage, overload, or overtemperature, the microcontroller or bus-ASIC receives diagnostic feedback, and the respective output channel is turned off. Monitoring the load-side supply voltage (Vbb) ensures proper MOSFET output stage switching, automatically turning off outputs if a critical minimum level is reached. The auto-restart function reactivates the output channel when undervoltage, overload, or overtemperature issues are resolved. Additionally, a disable input pin allows asynchronous turn-off of all outputs, enhancing system safety and supporting system maintenance.

Setting the standard in diagnostics

ISO2H823V2.5 offers exceptional diagnostics, distinguishing up to five types of events on a channel-level and five additional types on the IC-level. These diagnostic capabilities allow for preventive maintenance and expedite error detection during unscheduled downtimes, reducing the valuable time to system restart.

Documents

Documents

Design resources

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