1 Features

? 100 Mbps data rate

? Integrated DC-DC converter with low-emissions,

low-noise

– Emissions optimized to meet CISPR 32 and EN

55032 Class B with >5 dB margin on 2 layer

board

– Low frequency power converter at 25 MHz

enabling low noise performance

– Low output ripple: 24 mV

? High efficiency output power

– Efficiency at max load: 46

– Up to 0.55-W output power

– VISOOUT accuracy of ± 5

– 5 V to 5 V: Max available load current = 110 mA

– 5 V to 3.3 V: Max available load current = 140

mA

– 3.3 V to 3.3 V: Max available load current = 60

mA

? Support for multi-ISOW7721 chain to increase

system power output to > 1-W and > 200 mA

? Independent power supply for channel isolator &

power converter

– Logic supply (VIO): 1.71-V to 5.5-V

– Power converter supply (VDD): 3-V to 5.5-V

? Robust electromagnetic compatibility (EMC)

– System-level ESD, EFT, and surge immunity

– ±8 kV IEC 61000-4-2 contact discharge

protection across isolation barrier

? Reinforced and Basic isolation options

? High CMTI: 100-kV/μs (typical)

? Safety Related Certifications (Planned):

– VDE reinforced and basic insulation per DIN

VDE V 0884-11:2017-01

– UL 1577 component recognition program

– IEC 62368-1, IEC 61010-1, IEC 60601-1 and

GB 4943.1-2011 certifications

? Extended temperature range: –40°C to +125°C

? 20-pin wide body SOIC package

2 Applications

? Factory automation

? Motor control

? Grid infrastructure

? Medical equipment

? Test and measurement

3 Description

The ISOW7721 device is a galvanically-isolated

dual-channel digital isolator with an integrated highefficiency

power converter with low emissions. The

integrated DC-DC converter provides up to 550

mW of isolated power, eliminating the need for a

separate isolated power supply in space-constrained

isolation designs. If additional power is needed, the

ISOW7721 supports multi-device chaining, increasing

the integrated power output to > 1 W using two

devices in a system.