ADUM3472 Series

Isolated Switching Regulators (2/2 Channel Directionality)

Catalog

Isolated Switching Regulators (2/2 Channel Directionality)

Part	Common Mode Transient Immunity (Min) [Min]	Operating Temperature [Min]	Operating Temperature [Max]	Pulse Width Distortion (Max) [Max]	Inputs - Side 1/Side 2 [custom]	Inputs - Side 1/Side 2 [custom]	Number of Channels	Package / Case	Grade	Supplier Device Package	Data Rate	Channel Type	Voltage - Supply [Max]	Voltage - Supply [Min]	Mounting Type	Propagation Delay tpLH / tpHL (Max) [custom]	Propagation Delay tpLH / tpHL (Max) [custom]	Technology	Voltage - Isolation	Type	Isolated Power	Rise / Fall Time (Typ) [custom]	Rise / Fall Time (Typ) [custom]	Propagation Delay tpLH / tpHL (Max)
Analog Devices ADUM3472WARSZ-RL7	25 kV/µs	-40 °C	105 ░C	40 ns	2	2	4	20-SSOP	Automotive	20-SSOP	1 Mbps	Unidirectional	3.6 V 5.5 V	3 V 4.5 V	Surface Mount	100 ns	100 ns	Magnetic Coupling	2500 Vrms	General Purpose		2.5 ns	2.5 ns
Analog Devices ADUM3472CRSZ	25 kV/µs	-40 °C	105 ░C	8 ns	2	2	4	20-SSOP		20-SSOP	25 MBd	Unidirectional	3.6 V 5.5 V	3 V 4.5 V	Surface Mount			Magnetic Coupling	2500 Vrms	General Purpose		2.5 ns	2.5 ns	60 ns

Catalog

Isolated Switching Regulators (2/2 Channel Directionality)

Key Features

• Isolated PWM Controller

• Integrated transformer driver

• 2 W output power

• Quad dc-to-25 Mbps (NRZ) signal isolation channels

• 20-lead SSOP package

• High temperature operation: 105°C

• High common-mode transient immunity: >25 kV/μs

• See datasheet for additional features

Description

TheADuM3470/ADuM3471/ ADuM3472 /ADuM3473/ADuM3474devices are quad-channel, digital isolators with an integrated PWM controller and transformer driver for an isolated DC/DC converter. Based on the Analog Devices, Inc.,iCoupler®technology, the DC/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. This eliminates the need for a separate, isolated DC/DC converter in 2 W isolated designs. TheiCoupler chip-scale transformer technology is used to isolate the logic signals, and the integrated transformer driver with isolated secondary side control provides higher efficiency for the isolated DC/DC converter. The result is a small form factor, total isolation solution.The ADuM347x isolators provide four independent isolation channels in a variety of channel configurations and data rates.APPLICATIONSRS-232/RS-422/RS-485 transceiversIndustrial field bus isolationPower supply startup bias and gate drivesIsolated sensor interfacesProcess controlsAutomotive