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參數資料
| 型號： | MC3405P |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 運動控制電子 |
| 英文描述： | Processor Supervisory Circuits with Power-Fail 8-SOIC -40 to 85 |
| 中文描述： | DUAL OP-AMP, 12000 uV OFFSET-MAX, 1 MHz BAND WIDTH, PDIP14 |
| 封裝： | PLASTIC, DIP-14 |
| 文件頁數： | 8/12頁 |
| 文件大小： | 182K |
| 代理商： | MC3405P |
MC3405
8
MOTOROLA ANALOG IC DEVICE DATA
+
–
Figure 15. Zero Crossing Detector with Temperature Sensor
Figure 16. LSTTL to CMOS Interface with Hysteresis
Figure 17. NOR Gate
R1 and R2 control the switching
voltage of the zero crossing detector
±
VS =
±
VD
R4 + R5
R5
Vt = (VBE of Q1)
13 >
2VBE
R5
R1 + R2
R2
TA < TSet
+VS
–VS
0
vo
VCC
VEE
Time
Zero Crossing Detector
Temperature Sensor
10 k
VCC
Vin
R1
1N914
R2
1N914
VEE
10 k
+
–
2
3
6
5
1
7
10 k
Temp
Adjust
VCC
R3
R4
R5
13
Q1
VCC
R6
R8
R7
vt
10
9
8
1.0 M
10 k
10 k
12
13
VEE
VO
LSTTL
Level Shift
VIL = 1.17 V
VIH = 1.80 V
CMOS
* The same configuration may be used with an op amp if
the 3.0 k resistor is removed.
+ 5.0 V
2.4 k
50 k
27 k
3.0 k *
+ 15 V
A
B
C
D
10 k
10 k
10 k
3.0 k*
G
G = A + B + C + D
VCC
VCC
14
* The same configuration may be used with an
op amp if the 3.0 k resistor is removed.
+
Comp 1
–
+
Comp 2
–
–
Comp *
+
+
Comp *
–
+
Amp 1
–
+
Amp 2
–
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