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ADUM6132ARWZ-RL Arkusz danych(PDF) 11 Page - Analog Devices |
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ADUM6132ARWZ-RL Arkusz danych(HTML) 11 Page - Analog Devices |
11 / 12 page PRELIMINARY TECHNICAL DATA ADuM6132 Rev. PrG| Page 11 of 12 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 the maximum working voltage recommended by Analog Devices. In the case of unipolar ac or dc voltage, the stress on the insu- lation is significantly lower. This allows operation at higher working voltages while still achieving a 50-year service life. The working voltages listed in Table 7 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 9 or Figure 10 should be treated as a bipolar ac waveform and its peak voltage should be limited to the 50-year lifetime voltage value listed in Table 7. Note that the voltage presented in Figure 9 is shown as sinusoidal for illustration purposes only. It is meant to represent any voltage waveform varying between 0 V and some limiting value. The limiting value can be positive or negative, but the voltage cannot cross 0 V. 0V RATED PEAK VOLTAGE Figure 8. Bipolar AC Waveform 0V RATED PEAK VOLTAGE Figure 9. Unipolar AC Waveform 0V RATED PEAK VOLTAGE Figure 10. DC Waveform |
Podobny numer części - ADUM6132ARWZ-RL |
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Podobny opis - ADUM6132ARWZ-RL |
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