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參數(shù)資料
| 型號： | ADUM7234BRZ |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 外設(shè)及接口 |
| 英文描述： | Isolated Precision Half-Bridge Driver, 4 A Output, 16 Pin SOIC, Ind Temp |
| 中文描述： | 4 A HALF BRIDGE BASED PRPHL DRVR, PDSO16 |
| 封裝： | ROHS COMPLIANT, MS-012AC, SOIC-16 |
| 文件頁數(shù)： | 11/12頁 |
| 文件大?。?/td> | 266K |
| 代理商： | ADUM7234BRZ |
ADuM7234
Rev. A | Page 8 of 12
APPLICATIONS INFORMATION
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
VCM, linear = (ΔV/Δt)t
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
dVCM/dt = ΔV/Δt
Figure 8 characterizes the ability of the ADuM7234 to operate
correctly in the presence of linear transients. The data, based on
design simulation, is the maximum linear transient magnitude
that the ADuM7234 can tolerate without an operational error.
This data shows a correlation with the data that is listed in
Table 4, which is based on measured data.
TEMPERATURE (°C)
100
–40
0
40
80
–20
20
60
T
R
A
N
SI
EN
T
I
M
U
N
ITY
(k
V/
s
)
50
45
35
40
30
25
20
15
10
5
0
07
99
0-
00
3
BEST-CASE PROCESS VARIATION
WORST-CASE PROCESS VARIATION
Figure 8. Transient Immunity (Linear Transients) vs. Temperature
The sinusoidal component (at a given frequency) is given by
VCM, sinusoidal = V0sin(2πft)
where:
V0 is the magnitude of the sinusoidal.
f is the frequency of the sinusoidal.
The transient magnitude of the sinusoidal component is given by
dVCM/dt = 2πf V0
to operate correctly in the presence of sinusoidal transients.
The data is based on design simulation and is the maximum
sinusoidal transient magnitude (2πf V0) that the ADuM7234
can tolerate without an operational error. Values for immunity
against sinusoidal transients are not included in Table 4 because
measurements to obtain such values have not been possible.
FREQUENCY (MHz)
2000
0
500
1000
1500
1750
250
750
1250
T
RANS
IE
NT
I
M
UNI
T
Y
(k
V
/
s)
250
200
150
100
50
0
07
99
0-
0
04
BEST-CASE PROCESS VARIATION
WORST-CASE PROCESS VARIATION
Figure 9. Transient Immunity (Sinusoidal Transients),
27°C Ambient Temperature
FREQUENCY (MHz)
2000
0
500
1000
1500
1750
250
750
1250
T
RANS
IE
NT
I
M
UNI
T
Y
(
kV
/
s)
250
100
150
200
50
0
07
99
0-
00
5
BEST-CASE PROCESS VARIATION
WORST-CASE PROCESS VARIATION
Figure 10. Transient Immunity (Sinusoidal Transients),
100°C Ambient Temperature
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