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.