EVAL-ADUM4160EBZ Analog Devices Inc, EVAL-ADUM4160EBZ Datasheet - Page 12

• Manufacturer Part Number: EVAL-ADUM4160EBZ
• Description: EVALUATION MODULE FOR ADUM4160
• Manufacturer: Analog Devices Inc
• Series: iCoupler®r

Specifications of EVAL-ADUM4160EBZ

• Main Purpose: Interface, Digital Isolator
• Embedded: No
• Utilized Ic / Part: ADuM4160
• Primary Attributes: USB Bidirectional Isolation
• Secondary Attributes: 3.1 V ~ 5.5 V Supply
• Silicon Manufacturer: Analog Devices
• Application Sub Type: USB Port Isolator
• Kit Application Type: Interface
• Silicon Core Number: ADuM4160
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: Q4508819

ADuM4160
high frequency very close to the component. For the 1 MHz
example noted, one would have to place a 0.5 kA current 5 mm
away from the ADuM4160 to affect the component’s operation.
1000
0.01
100
0.1
10
1
1k
DISTANCE = 100mm
for Various Current-to-ADuM4160 Spacings
Figure 7. Maximum Allowable Current
DISTANCE = 5mm
10k
MAGNETIC FIELD FREQUENCY (Hz)
100k
1M
DISTANCE = 1m
10M
100M
Rev. Pr F | Page 12 of 14
Note that at combinations of strong magnetic field and high
frequency, any loops formed by printed circuit board traces
could induce error voltages sufficiently large enough to trigger
the thresholds of succeeding circuitry. Care should be taken in
the layout of such traces to avoid this possibility.
INSULATION LIFETIME
All insulation structures will eventually break down when
subjected to voltage stress over a sufficiently long period. The
rate of insulation degradation is dependant on the
characteristics of the voltage waveform applied across the
insulation. In addition to the testing performed by the
regulatory agencies, Analog Devices carries out an extensive set
of evaluations to determine the lifetime of the insulation
structure within the ADuM4160.
ADI performs accelerated life testing using voltage levels higher
than the rated continuous working voltage. Acceleration factors
for several operating conditions are determined. These factors
allow calculation of the time to failure at the actual working
voltage. The values shown in Table 8 summarize the peak
voltage for 50 years of service life for a bipolar ac operating
condition, and the maximum CSA/VDE approved working
voltages. In many cases, the approved working voltage is higher
than 50-year service life voltage. Operation at these high
working voltages can lead to shortened insulation life in some
cases.
The insulation lifetime of the ADuM4160 depends on the
voltage waveform type imposed across the isolation barrier. The
iCoupler insulation structure degrades at different rates
depending on whether the waveform is bipolar ac, unipolar ac,
or dc. Figure 8, Figure 9, and Figure 10 illustrate these different
isolation voltage waveforms.
Bipolar ac voltage is the most stringent environment. The goal
of a 50-year operating lifetime under the ac bipolar condition
determines ADI’s recommended maximum working voltage.
Preliminary Technical Data