ADUM5200ARWZ1 AD [Analog Devices], ADUM5200ARWZ1 Datasheet - Page 14

• Manufacturer Part Number: ADUM5200ARWZ1
• Description: Isolated DC/DC Converter
• Manufacturer: AD [Analog Devices]

ADuM5000
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 12, Figure 13, and Figure 14 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.
In the case of unipolar ac or dc voltage, the stress on the
insulation is significantly lower. This allows operation at higher
working voltages while still achieving a 50 year service life. The
working voltages listed in Table 10 can be applied while
maintaining the 50-year minimum lifetime provided the voltage
conforms to either the unipolar ac or dc voltage cases. Any cross
insulation voltage waveform that does not conform to Figure
13
its peak voltage should be limited to the 50 year lifetime voltage
value listed in Table 10.
1
or Figure 14 should be treated as a bipolar ac waveform and
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1
The voltage presented in Figure 13 is shown as sinusoidal for illustration
purposes only. It is meant to represent any voltage waveform varying
between 0 and some limiting value. The limiting value can be positive or
negative, but the voltage cannot cross 0V.
RATED PEAK VOLTAGE
RATED PEAK VOLTAGE
RATED PEAK VOLTAGE
0V
0V
0V
Figure 13. Unipolar AC Waveform
Figure 12. Bipolar AC Waveform
Figure 14. DC Waveform
Preliminary Technical Data