1 Features
• Up to 100Mbps data rate
• Robust SiO2 isolation barrier:
– Wide temperature range: –40°C to 125°C
– Up to 5000VRMS isolation rating
– Up to 10.4kV surge capability
– ±100kV/μs typical CMTI
• Supply range: 2.25V to 5.5V
• Default output high ( ISO644x ) and low
( ISO644xF ) options
• Low propagation delay: 6.2ns typical at 5V
• Robust electromagnetic compatibility (EMC)
– System-level ESD, EFT, and surge immunity
– Low emissions
• Wide-SOIC (DW-16) Package
• Safety-Related Certifications (Planned):
– DIN EN IEC 60747-17 (VDE 0884-17)
– UL 1577 component recognition program
– IEC 62368-1, IEC 61010-1, IEC 60601-1 and
GB 4943.1 certifications

2 Applications
• Power supplies
• Grid, Electricity meter
• Motor drives
• Factory automation
• Building automation
• Lighting
• Appliances

3 Description
The ISO644x devices are high-performance, quadchannel
digital isolators designed for cost-sensitive
applications requiring up to 5000VRMS isolation ratings
per UL 1577. These devices are also certified by
VDE, TUV, CSA, and CQC.
The ISO644x devices provide high electromagnetic
immunity and low emissions at low power
consumption while isolating CMOS or LVCMOS digital
I/Os. ISO644x uses SiO2 as the isolation barrier. Each
isolation channel has a logic input and output buffer
separated by the insulation barrier. These devices
come with enable pins that can be used to put
the respective outputs in high impedance for parallel
(multiple) control driving applications.
The ISO6441 and ISO6441F devices have one
reverse-direction channel.
In the event of input power or signal loss, the default
output is high for devices without the suffix F and
low for devices with the suffix F. See the Device
Functional Modes section for further details.