ADuM2250ARIZ-RL AD [Analog Devices], ADuM2250ARIZ-RL Datasheet - Page 12

• Manufacturer Part Number: ADuM2250ARIZ-RL
• Description: Hot-Swappable, Dual I2C Isolators, 5 kV
• Manufacturer: AD [Analog Devices]

ADuM2250/ADuM2251
Data Sheet
The preceding magnetic flux density values correspond to
1000
specific current magnitudes at given distances away from
DISTANCE = 1m
the ADuM2250/ADuM2251 transformers. Figure 11 expresses
100
these allowable current magnitudes as a function of frequency
for selected distances. As seen, the ADuM2250/ADuM2251 is
10
extremely immune and can be affected only by extremely large
DISTANCE = 100mm
currents operated at high frequency and very close to the com-
ponent. For the 1 MHz example, place a 0.5 kA current 5 mm
1
DISTANCE = 5mm
away from the ADuM2250/ADuM2251 to affect the operation
of the component.
0.1
Note that at combinations of strong magnetic fields and high
frequencies, any loops formed by printed circuit board traces
0.01
could induce sufficiently large error voltages to trigger the
1k
10k
100k
1M
10M
100M
threshold of succeeding circuitry. Care should be taken in
MAGNETIC FIELD FREQUENCY (Hz)
Figure 11. Maximum Allowable Current for Various
the layout of such traces to avoid this possibility.
Current-to-ADuM2250/ADuM2251 Spacings
Rev. A | Page 12 of 16