ADUM4473CRIZ

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Analog Devices Inc./Maxim Integrated

ISOLATED SWITCH REGULATOR WITH QUAD-CHANNEL ISOLATORS (1/3 CHANNEL DIRECTIONALITY)

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ADUM4473CRIZ

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Analog Devices Inc./Maxim Integrated

ISOLATED SWITCH REGULATOR WITH QUAD-CHANNEL ISOLATORS (1/3 CHANNEL DIRECTIONALITY)

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Description Specifications Series Pricing CAD Documents

Description

General part information

ADUM4473 Series

ADuM4470/ADuM4471/ADuM4472/ ADuM4473 /ADuM4474is a four-channel digital isolator with integrated regulated DC-DC isolated power supply controller and integrated internal MOSFET driver. The DC/DC controller has a built-in isolated PWM feedback on the primary side, usingiCoupler®chip-level transformer technology and complete loop compensation. It is not necessary to use an optocoupler for feedback and to compensate the loop for stability.Compared to unregulated isolated DC/DC power supplies, ADuM447x isolators can provide a more stable output voltage and higher efficiency. It is packaged in a wide-body SOIC, fully integrated feedback and loop compensation, providing a smaller size and 8.3 mm creepage distance solution. Regulated feedback can provide a relatively flat efficiency curve over the entire output power range. AduM3070 can enable a DC/DC converter with an isolated output voltage range of 3.3 V to 24 V from an input voltage of 5.0 V or 3.3 V, with an output power of 2.5 WADuM447x isolators provide four independent isolation channels, supporting multiple channel configurations and data rates. (The ADuM447x mentioned in this data sheet represents ADuM4470 / ADuM4471 / ADuM4472 / ADuM4473 / ADuM4474)APPLICATIONSPower startup bias and gate driveIsolation sensor interfaceProcess controlRS-232/RS-422/RS-485 transceiver

Technical Specifications

Parameters and characteristics for this part

Specification	ADUM4473CRIZ

Channel Type	Unidirectional
Common Mode Transient Immunity (Min)	25 kV/µs
Data Rate	25 MBd
Fall Time (Typ)	2.5 ns
Inputs - Side 1	1
Inputs - Side 2	3
Isolated Power	Yes
Mounting Type	Surface Mount
Number of Channels	4
Operating Temperature (Max)	105 °C
Operating Temperature (Min)	-40 °C
Package Length	0.295 in
Package Name	20-SOIC-IC, 20-SOIC
Package Width	7.5 mm
Propagation Delay tpHL (Max)	60 ns
Propagation Delay tpLH (Max)	60 ns
Pulse Width Distortion (Max)	6 ns
Rise Time (Typ)	2.5 ns
Technology	Magnetic Coupling
Type	General Purpose
Voltage - Isolation	5000 Vrms
Voltage - Supply (Range 1 Maximum)	3.6 V
Voltage - Supply (Range 1 Minimum)	3 V
Voltage - Supply (Range 2 Maximum)	5.5 V
Voltage - Supply (Range 2 Minimum)	4.5 V

ADUM4473 Series

Part	Package Name	Rise Time (Typ)	Fall Time (Typ)	Data Rate	Isolated Power	Voltage - Supply (Range 2 Minimum)	Voltage - Supply (Range 1 Minimum)	Voltage - Supply (Range 1 Maximum)	Voltage - Supply (Range 2 Maximum)	Channel Type	Type	Mounting Type	Common Mode Transient Immunity (Min)	Voltage - Isolation	Inputs - Side 1	Inputs - Side 2	Number of Channels	Pulse Width Distortion (Max)	Operating Temperature (Min)	Operating Temperature (Max)	Propagation Delay tpHL (Max)	Propagation Delay tpLH (Max)	Package Length	Package Width	Technology
Analog Devices Inc./Maxim Integrated ADUM4473CRIZ	20-SOIC 20-SOIC-IC	2.5 ns	2.5 ns	25 MBd	Yes	4.5 V	3 V	3.6 V	5.5 V	Unidirectional	General Purpose	Surface Mount	25 kV/µs	5000 Vrms	1	3	4	6 ns	-40 °C	105 °C	60 ns	60 ns	0.295 in	7.5 mm	Magnetic Coupling
Analog Devices Inc./Maxim Integrated ADUM4473ARIZ-RL	20-SOIC 20-SOIC-IC	2.5 ns	2.5 ns	1 Mbps	Yes	4.5 V	3 V	3.6 V	5.5 V	Unidirectional	General Purpose	Surface Mount	25 kV/µs	5000 Vrms	1	3	4	40 ns	-40 °C	105 °C	100 ns	100 ns	0.295 in	7.5 mm	Magnetic Coupling
Analog Devices Inc./Maxim Integrated ADUM4473ARIZ	20-SOIC 20-SOIC-IC	2.5 ns	2.5 ns	1 Mbps	Yes	4.5 V	3 V	3.6 V	5.5 V	Unidirectional	General Purpose	Surface Mount	25 kV/µs	5000 Vrms	1	3	4	40 ns	-40 °C	105 °C	100 ns	100 ns	0.295 in	7.5 mm	Magnetic Coupling
Analog Devices Inc./Maxim Integrated ADUM4473CRIZ-RL	20-SOIC 20-SOIC-IC	2.5 ns	2.5 ns	25 MBd	Yes	4.5 V	3 V	3.6 V	5.5 V	Unidirectional	General Purpose	Surface Mount	25 kV/µs	5000 Vrms	1	3	4	6 ns	-40 °C	105 °C	60 ns	60 ns	0.295 in	7.5 mm	Magnetic Coupling

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

Datasheet

ADUM4473CRIZ | Datasheet

UG-492: Evaluating theiCoupler ADuM4470, ADuM4471, ADuM4472, ADuM4473, and ADuM4474 Isolated Switching Regulators with Integrated Feedback