MC33033DWG ON Semiconductor, MC33033DWG Datasheet - Page 13

• Manufacturer Part Number: MC33033DWG
• Description: IC CTLR DC MOTOR BRSHLSS 20SOIC
• Manufacturer: ON Semiconductor
• Type: Brushless DC Motor Controllerr

Specifications of MC33033DWG

• Applications: DC Motor Controller, Brushless (BLDC), 3 Phase
• 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: 20-SOIC (7.5mm Width)
• Operating Supply Voltage: 10 V to 30 V
• Supply Current: 22 mA
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: MC33033DWG; MC33033DWGOS

operation can result if the reference output voltage should
fall below 4.5 V. If one or both of the comparators detects an
undervoltage condition, the top drives are turned off and the
Capacitor C
Error Amp Out/
PWM Input
Current Sense
Input
Latch “Set”
Inputs
Top Drive
Outputs
Bottom Drive
Outputs
Transistor Q
motor voltage, V
is low.
Decoder
Position
Rotor
Figure 23. High Voltage Interface with
T
1
is a common base stage used to level shift from V
Figure 21. PWM Timing Diagram
M
. The collector diode is required if V
NPN Power Transistors
2
1
20
17
16
15
B
C
A
T
T
T
V
CC
CC
is present while V
Q
1
Q
CC
MC33033, NCV33033
2
to the high
Q
Q
http://onsemi.com
Load
3
4
V
M
M
13
Bottom Drive Outputs are held in a low state. Each of the
comparators contain hysteresis to prevent oscillations when
crossing their respective thresholds.
Decoder
Position
The NPN circuit is recommended for powering Hall or opto sensors,
where the output voltage temperature coefficient is not critical. The PNP
circuit is slightly more complex, but also more accurate. Neither circuit
has current limiting.
Rotor
Figure 24. High Voltage Interface with
Figure 22. Reference Output Buffers
To Control Circuitry
and Sensor Power
V
U51A
N-Channel Power MOSFETs
V
U01A
MPS
MPS
in
in
Sensor
≈ 5.6 V
Power
6.25 V
36
0.1
Circuitry
Control
6.25 V
To
14
14
7
1
20
17
16
15
7
2
B
C
A
T
T
T
V
REF
REF
CC
= 12 V
4.7 k
1.0 k
1
2
Optocoupler
MOC8204
1.0 M
UVLO
UVLO
6
V
1N4744
Boost
5
4
V
M
Load
= 170 V