ADUM1230BRWZ-RL AD [Analog Devices], ADUM1230BRWZ-RL Datasheet - Page 8

• Manufacturer Part Number: ADUM1230BRWZ-RL
• Description: Isolated Half-Bridge Driver, 0.1 A Amp Output
• Manufacturer: AD [Analog Devices]

ADuM1230
APPLICATION NOTES
COMMON-MODE TRANSIENT IMMUNITY
In general, common-mode transients consist of linear and
sinusoidal components. The linear component of a common-
mode transient is given by
where ΔV/Δt is the slope of the transient shown in Figure 11
and Figure 12.
The transient of the linear component is given by
The ADuM1230’s ability to operate correctly in the presence of
linear transients is characterized by the data in Figure 8. The
data is based on design simulation and is the maximum linear
transient magnitude that the ADuM1230 can tolerate without
an operational error. This data shows a higher level of robustness
than what is shown in Table 5 because the transient immunity
values obtained in Table 5 use measured data and apply
allowances for measurement error and margin.
The sinusoidal component (at a given frequency) is given by
where:
V
f is the frequency of the sinusoidal.
0
is the magnitude of the sinusoidal.
V
dV
V
300
250
200
150
100
Figure 8. Transient Immunity (Linear Transients) vs. Temperature
50
CM, sinusoidal
CM, linear
0
–40
CM
/dt = ΔV/Δt
= (ΔV/Δt) t
–20
WORST-CASE PROCESS VARIATION
= V
0
sin(2πft)
0
TEMPERATURE (°C)
BEST-CASE PROCESS VARIATION
20
40
60
80
100
Rev. A | Page 8 of 12
The transient magnitude of the sinusoidal component is given by
The ADuM1230’s ability to operate correctly in the presence
of sinusoidal transients is characterized by the data in Figure 9
and Figure 10. The data is based on design simulation and is
the maximum sinusoidal transient magnitude (2πf V
ADuM1230 can tolerate without an operational error. Values
for immunity against sinusoidal transients are not included in
Table 5 because measurements to obtain such values have not
been possible.
dV
200
180
160
140
120
100
200
180
160
140
120
100
80
60
40
20
80
60
40
20
0
0
CM
0
0
Figure 10. Transient Immunity (Sinusoidal Transients),
/dt = 2πf V
Figure 9. Transient Immunity (Sinusoidal Transients),
BEST-CASE PROCESS VARIATION
250
250
BEST-CASE PROCESS VARIATION
500
500
100°C Ambient Temperature
27°C Ambient Temperature
0
750
FREQUENCY (MHz)
750
FREQUENCY (MHz)
WORST-CASE PROCESS VARIATION
WORST-CASE PROCESS VARIATION
1000
1000
1250
1250
1500
1500
1750
1750
0
) that the
2000
2000