GENERAL DESCRIPTION
The ADuM3470/ADuM3471/ADuM3472/ADuM3473/ADuM3474 devices1 are quad-channel digital isolators with an integrated PWM controller and transformer driver for an isolated dc-to-dc converter. Based on the Analog Devices, Inc., iCoupler® technology, the dc-to-dc converter provides up to 2 W of regulated, isolated power at 3.3 V to 24 V from a 5.0 V input supply or from a 3.3 V supply.

FEATURES
    Isolated PWM controller
    Integrated transformer driver
    Regulated adjustable output: 3.3 V to 24 V
    2 W output power
    70% efficiency at guaranteed load of 400 mA at 5.0 V output
    Quad dc-to-25 Mbps (NRZ) signal isolation channels
    20-lead SSOP package
    High temperature operation: 105°C maximum
    High common-mode transient immunity: >25 kV/µs
    200 kHz to 1 MHz adjustable oscillator frequency
    Soft start function at power-up
    Pulse-by-pulse overcurrent protection
    Thermal shutdown
    Safety and regulatory approvals
        UL recognition: 2500 V rms for 1 minute per UL 1577 CSA Component Acceptance Notice #5A VDE certificate of conformity
            DIN V VDE V 0884-10 (VDE V 0884-10):2006-12 VIORM = 560 V peak
    Qualified for automotive applications

APPLICATIONS
    RS-232/RS-422/RS-485 transceivers
    Industrial field bus isolation
    Power supply start-up bias and gate drives
    Isolated sensor interfaces
    Process controls
    Automotive