參數(shù)資料
型號: IR21771SPBF
廠商: International Rectifier
英文描述: Phase Current Sensor IC for AC motor control
中文描述: 相電流傳感器IC交流電機控制
文件頁數(shù): 5/16頁
文件大?。?/td> 441K
代理商: IR21771SPBF
IR22771S/IR21771S
(PbF)
5
www.irf.com
AC Electrical Characteristics
V
BIAS
(V
CC
, V
BS
) = 15V unless otherwise specified. Temp=27°C.
Symbol
Definition
Min
Typ
Max
Units
Test
Conditions
f
sync
PWM frequency
4
20
kHz
f
out
Throughput
fsync
2
ksample/sec
BW
Bandwidth (@ -3 dB)
fsync
kHz
GD
Group Delay (input filter)
fsync
4
1
μs
D
min
Minimum Duty Cycle (Note 1)
10
%
V
in
=+V
inmax
D
max
Maximum Duty Cycle (Note 1)
30
%
V
in
=-V
inmin
t
dOCon
De-bounce time of OC
2.7
3.5
4.7
μs
See Figure 4
T
OCoff
Time to reset OC forcing PO
0.5
μs
See Figure 4
MD
Measure Delay
fsync
3
2
30
.
μs
SR
Step response (max time to reach
steady state)
fsync
51
.
fsync
μs
See Figure 5
Note 1:
negative logic, see fig. 4 on page 7
Note 2:
Cload < 5 nF avoids overshoot
Figure 4:
OC timing diagram
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