
ADuM6420A Series
Quad-Channel Isolators with Integrated DC-to-DC Converter (4:0 directionality)
Manufacturer: Analog Devices
Catalog
Quad-Channel Isolators with Integrated DC-to-DC Converter (4:0 directionality)
Key Features
• isoPower integrated, isolated dc-to-dc converter
• 100 mA output supply
• AEC-Q100 qualified for automotive applicationsADuM6421AW
• ADuM6421AW
• Meets CISPR 32/EN55032 Class B emission limits up to 5 Mbps at a full load on a 2-layer PCB
• Quad dc to 100 Mbps signal isolation channels
• 28-lead, fine pitch, SOIC with 8.3 mm minimum creepage
• High temperature operation: 125°C maximum
• High common-mode transient immunity: 100 kV/μs
• Safety and regulatory approvals (pending)
• UL recognition 5000 V rms for 1 minute per UL 1577
• CSA certification per IEC 62368-1, IEC 61010-1, and IEC
• 60601-1
• VDE V 0884-11 certificate of conformity (pending)
• VIORM= 566 V peak
• CQC certification per GB4943.1-2011 (pending)
Description
AI
The ADuM6420A/ADuM6421A/ADuM6422A/ADuM6423A/ADuM6424A1are quad-channel digital isolators with anisoPower®, integrated, isolated dc-to-dc converter. Based on the Analog Devices, Inc.,iCoupler®technology, the dc-to-dc converter provides regulated, isolated power that meets CISPR 32/EN 55032 Class B limits at a full load on a 2-layer printed circuit board (PCB) with ferrites. Popular voltage combinations and the associated output current levels are listed in Table 1 in the data sheet.The ADuM6420A/ADuM6421A/ADuM6422A/ADuM6423A/ADuM6424A eliminate the need for a separate, isolated dc-to-dc converter in 500 mW, isolated designs. TheiCoupler chip scale transformer technology is used for isolated logic signals and for the magnetic components of the dc-to-dc converter. The result is a small form factor, total isolation solution.The ADuM6420A/ADuM6421A/ADuM6422A/ADuM6423A/ADuM6424A isolators provide four independent isolation channels. See the Pin Configurations and Function Descriptions in the data sheet for additional information.APPLICATIONSRS-232 transceiversPower supply start-up bias and gate drivesIsolated sensor interfacesAutomotive on-board charger (OBC) and dc to dcIndustrial programmable logic controllers (PLCs)1Protected by U.S. Patents 5,952,849; 6,873,065; 6,903,578; and 7,075,329. Other patents are pending.