ISO7421E-Q1
www.ti.com SLLSEA5B – MARCH 2012 – REVISED JUNE 2012 Low-Power Dual Digital Isolators
Check for Samples: ISO7421E-Q1 FEATURES DESCRIPTION The ISO7421E-Q1 provides double galvanic isolation
of up to 2.5 KVrms for 1 minute per UL. This digital
isolator has two isolation channels in a bi-directional
configuration. Each isolation channel has a logic input
and output buffer separated by a silicon oxide (SiO2)
insulation barrier. Used in conjunction with isolated
power supplies, these devices prevent noise currents
on a data bus or other circuits from entering the local
ground and interfering with or damaging sensitive
circuitry. 1 Qualified for Automotive Applications
AEC-Q100 Qualified with the following results:
– Device Temperature Grade 1: -40°C to
+125В°C Ambient Operating Temperature
Range
– Device HBM ESD Classification Level H3A
– Device CDM ESD Classification Level C4
Propagation Delay Less Than 20 ns
Low Power Consumption
Wide Ambient Temperature: –40°C to 125°C
Safety and Regulatory Approvals
– 4 kV peak Maximum Isolation, 2.5 kVrms …
