MC33035DW ON Semiconductor, MC33035DW Datasheet - Page 14
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MC33035DW
Manufacturer Part Number
MC33035DW
Description
IC CTRLR DC MOTOR BRSHLSS 24SOIC
Manufacturer
ON Semiconductor
Type
Brushless DC Motor Controllerr
Datasheet
1.NCV33035DWR2G.pdf
(28 pages)
Specifications of MC33035DW
Applications
DC Motor Controller, Brushless (BLDC)
Number Of Outputs
1
Current - Output
100mA
Voltage - Load
5.9 V ~ 6.5 V
Voltage - Supply
10 V ~ 30 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
24-SOIC (7.5mm Width)
Operating Supply Voltage
10 V to 30 V
Supply Current
20 mA
Mounting Style
SMD/SMT
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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Series gate resistor R
by the MOSFET input capacitance and any series wiring induction in the
gate−source circuit. Diode D is required if the negative current into the Bot-
tom Drive Outputs exceeds 50 mA.
Decoder
Position
Rotor
Figure 27. MOSFET Drive Precautions
Figure 25. High Voltage Interface with
23
N−Channel Power MOSFETs
40 k
100 mV
g
will dampen any high frequency oscillations caused
Brake Input
21
20
19
9
15
D = 1N5819
D
D
D
R
R
R
14
2
1
24
21
20
19
g
g
g
V
CC = 12 V
1
2
1.0 k
1.0 M
Optocoupler
4.7 k
MOC8204
6
MC33035, NCV33035
1N4744
V
Boost
http://onsemi.com
4
5
V
Load
M = 170 V
Q
4
14
The totem−pole output can furnish negative base current for enhanced tran-
sistor turn−off, with the addition of capacitor C.
The addition of the RC filter will eliminate current−limit instability caused by the
leading edge spike on the current waveform. Resistor R
ductance type.
Figure 26. Current Waveform Spike Suppression
23
Figure 28. Bipolar Transistor Drive
23
40 k
100 mV
40 k
Brake Input
100 mV
Brake Input
21
20
19
9
15
21
20
19
9
15
C
C
C
C
R
S
should be a low in-
0
−
+
I
B
Base Charge
R
Removal
S
t