Overview
Features and Benefits
- 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
Product Details
The ADuM3470 / ADuM3471 / ADuM3472 / ADuM3473 / ADuM3474 devices 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. The iCoupler 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.
APPLICATIONS
- RS-232/RS-422/RS-485 transceivers
- Industrial field bus isolation
- Power supply startup bias and gate drives
- Isolated sensor interfaces
- Process controls
- Automotive
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
Documentation & Resources
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UG-197: iCoupler ADuM347x Quad-Channel Isolators with Integrated Transformer Driver11/1/2010PDF653 kB
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Digital Isolation and Interface Technology Selection Guide2/7/2020PDF4 M
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Enhanced Protection with the Latest iCoupler® Digital Isolation2/7/2020PDF2 M
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Inside iCoupler® Technology:ADuM347x PWM Controller and Transformer Driver with Quad-Channel Isolators Design Summary12/10/2010PDF291 kB
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NAppkin Note: Lowering the Power of the ADuM524x12/10/2010PDF223 kB
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InsideiCoupler® Technology: ADuM347x PWM Controller and Transformer Driver with Quad-Channel Isolators Design Summary11/1/2010
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.
Part Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
---|---|---|---|---|
ADUM3472ARSZ | Material Declaration | Reliability Data | 20-Lead SSOP | |
ADUM3472ARSZ-RL7 | Material Declaration | Reliability Data | 20-Lead SSOP | |
ADUM3472CRSZ | Material Declaration | Reliability Data | 20-Lead SSOP | |
ADUM3472CRSZ-RL7 | Material Declaration | Reliability Data | 20-Lead SSOP | |
ADUM3472WARSZ | Material Declaration | Reliability Data | 20-Lead SSOP | |
ADUM3472WARSZ-RL7 | Material Declaration | Reliability Data | 20-Lead SSOP | |
ADUM3472WCRSZ | Material Declaration | Reliability Data | 20-Lead SSOP | |
ADUM3472WCRSZ-RL7 | Material Declaration | Reliability Data | 20-Lead SSOP | |
Wafer Fabrication Data |
PCN-PDN Information
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Support & Discussions
ADuM3472 Discussions
Sample & Buy
Ordering FAQs
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Buy Now Pricing
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List Pricing
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Lead Times
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Sampling
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Evaluation Boards
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Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.