Analog Devices Inc./Maxim Integrated

TheADuM4470/ADuM4471/ ADuM4472 /ADuM4473/ADuM4474are quad-channel, digital isolations with a regulated DC/DC isolated power supply controller with an internal MOSFET driver. The DC/DC controller has an internal isolated PWM feedback from the secondary side based on theiCoupler®chip scale transformer technology and complete loop compensation. This eliminates the need to use an optocoupler for feedback and compensates the loop for stability.The ADuM447x isolator provides a more stable output voltage and higher efficiency compared to unregulated isolated DC/DC power supplies. The fully integrated feedback and loop compensation in a wide-body SOIC package provide a smaller form factor and 8.3 mm creepage distance solution. The regulated feedback provides a relatively flat efficiency curve over the full output power range. The ADuM3070 enables a DC/DC converter with a 3.3 V to 24 V isolated output voltage range from either a 5.0 V or a 3.3 V input voltage, with an output power of up to 2.5 W.The ADuM447x isolators provide four independent isolation channels in a variety of channel configurations and data rates. (The x in ADuM447x throughout this data sheet stands for the ADuM4470 / ADuM4471 / ADuM4472 / ADuM4473 / ADuM4474).APPLICATIONSPower supply startup bias and gate drivesIsolated sensor interfacesProcess controlsRS-232/RS-422/RS-485 transceivers

The ADuM5010 is an integrated, isolated DC/DC converter. Based on the Analog Devices, Inc.,iCoupler®technology, the DC/DC converter provides regulated, isolated power, adjustable between 3.15 V and 5.25 V. Input supply voltages can range from slightly below the required output to significantly higher.TheiCoupler chip-scale transformer technology is used for isolated logic signals and for the magnetic components of the DC/DC converter. The result is a small form factor, total isolation solution.APPLICATIONSPower supply startup bias and gate drivesIsolated sensor interfacesIndustrial PLCs

The ADuM520x are dual channel digital isolators withisoPower, an integrated, isolated dc-to-dc converter. Based on the Analog Devices, Inc.,iCoupler®technology, the dc-to-dc converter provides up to 500 mW of regulated, isolated power with 5.0 V input and 5.0 V output voltage, or 200 mW of power with 3.3 V input and 3.3 V output voltage. This eliminates the need for a separate isolated dc-to-dc converter in low power isolated designs. The Analog Devices chip scale transformeriCoupler technology is used for the isolation of the logic signals as well as for the dc-to-dc converter. The result is a small form factor, total isolation solution.ADuM520x units may be used in combination withADuM5401,ADuM5402,ADuM5403,ADuM5404andADuM5000withisoPower®to achieve higher output power levels and greater channel counts (see the Increasing Available Power section).The ADuM520x isolators provide two independent isolation channels in a variety of channel configurations and data rates (see the Ordering Guide for options).isoPower uses high frequency switching elements to transfer power through its transformer. Special care must be taken during printed circuit board (PCB) layout to meet emissions standards. Refer to theAN-0971application note for details on board layout recommendations.APPLICATIONSRS-232/RS-422/RS-485 transceiverIndustrial field bus isolationPower supply startups and gate drivesIsolated sensor interfacesIndustrial PLCs