ADUM6420ABRNZ5

The ADuM6420A/ADuM6421A/ADuM6422A are quad-channel digital isolators with an integrated, isolated dc-to-dc converter. 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. The ADuM6420A/ADuM6421A/ADuM6422A eliminate the need for a separate, isolated dc-to-dc converter in 500 mW, isolated designs. The iCoupler 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 isolators provide four independent isolation channels.

Applications

• RS-232 transceivers
• Power supply start-up bias and gate drives
• Isolated sensor interfaces
• Industrial programmable logic controllers (PLCs)

Key features

• isoPower integrated, isolated dc-to-dc converter
• 100 mA output supply
• Meets CISPR 32/EN550 32 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 (pending) 5000 V rms for 1 minute per UL 1577 CSA Component Acceptance Notice 5A (pending) VDE V 0884-11 certificate of conformity (pending) V10RM = 566 V peak