MC33033 Motorola, MC33033 Datasheet - Page 21

• Manufacturer Part Number: MC33033
• Description: BRUSHLESS DC MOTOR CONTROLLER
• Manufacturer: Motorola

MOTOROLA ANALOG IC DEVICE DATA
Bottom Drive
Sensor Inputs
Power Switch
Motor Drive
Conducting
Transistors
Select Pin
Top Drive
Outputs
Current
60 /120
Outputs
Open
A
B
D
C
Code
S A
B T
B B
S B
C T
C B
Figure 42. Four Phase, Four Step, Full Wave Commutation Waveforms
O
O
O
O
+
+
+
–
+
–
–
–
0
Q 3 + Q 5
10
90
Q 4 + Q 6
10
180
MC33033
Q 1 + Q 7
Rotor Electrical Position (Degrees)
01
270
Full Speed (No PWM)
Q 2 + Q 8
00
FWD/REV = 1
360
Q 3 + Q 5
10
450
Q 4 + Q 6
11
540
Q 1 + Q 7
01
630
Q 2 + Q 8
00
720
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