MC33030 Ver la hoja de datos (PDF) - ON Semiconductor
Número de pieza
componentes Descripción
Fabricante
MC33030 Datasheet PDF : 17 Pages
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MC33030
RR
Vin
2C
R/2
C
C
9
8 20 k
7
20 k
6
+ Error Amp
−
fnotch
+
1
2pRC
For 60 Hz R = 53.6 k, C = 0.05
Figure 25. Notch Filter
R1
VA
R2
R3
VB
9
8 20 k
7
20 k
Error Amp
+
−
R4 6
ǒ Ǔ ǒ Ǔ VPin 6 + VA
R3 ) R4
R1 ) R2
R2
R3
–
R4
R3
VB
Figure 26. Differential Input Amplifier
VCC
Cabin
Temperature T R1
Sensor
8
7
R2 R3
R4
6
VCC
9
20 k
Error Amp
+
−
20 k
Set
1
Temperature
ǒ Ǔ VCC
R4
R3
)
1
ǒ Ǔ VPin 6 +
R1
R2
)
1
In this application the servo motor drives the
heat/air conditioner modulator door in a duct system.
Figure 27. Temperature Sensing Servo System
VRef
R + DR
R
R
VB R1
R
R2
9
8 20 k
7
20 k
+ Error Amp
−
VA
R3
R4 6
ǒ Ǔ VA * VB + VRef
DR
4R ) 2DR
R1 + R3, R2 + R4, R1 uu R
VPin 6
+
R4
R3
(VA–VB)
Figure 28. Bridge Amplifier
QR
O.C.
QS
7.5 V
16
CDLY
+
15
ROC
4.7 k
+
VCC
17 8
2
3
Vin
4
VRef
LM311
A direction change signal is required at Pins 2 or 3 to
reset the overcurrent latch.
VCC
RE [
VF(D1) ) VF(D2)–VBE(ON)
IMOTOR–IDRV(max)
RE
D1 D2
Motor
RE
D1 D2
From Drive
Outputs
A
470
B
This circuit maintains the brake and overcurrent
features of the MC33030. Set ROC to 15 k for
IDRV(max) ≈ 0.5 A.
Figure 29. Remote Latched Shutdown
Figure 30. Power H−Switch Buffer
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