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부품번호 | MC33035 기능 |
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기능 | BRUSHLESS DC MOTOR CONTROLLER | ||
제조업체 | ON Semiconductor | ||
로고 | |||
전체 28 페이지수
MC33035, NCV33035
Brushless DC
Motor Controller
The MC33035 is a high performance second generation monolithic
brushless DC motor controller containing all of the active functions
required to implement a full featured open loop, three or four phase
motor control system. This device consists of a rotor position decoder
for proper commutation sequencing, temperature compensated
reference capable of supplying sensor power, frequency
programmable sawtooth oscillator, three open collector top drivers,
and three high current totem pole bottom drivers ideally suited for
driving power MOSFETs.
Also included are protective features consisting of undervoltage
lockout, cycle−by−cycle current limiting with a selectable time
delayed latched shutdown mode, internal thermal shutdown, and a
unique fault output that can be interfaced into microprocessor
controlled systems.
Typical motor control functions include open loop speed, forward or
reverse direction, run enable, and dynamic braking. The MC33035 is
designed to operate with electrical sensor phasings of 60°/300° or
120°/240°, and can also efficiently control brush DC motors.
Features
• 10 to 30 V Operation
• Undervoltage Lockout
• 6.25 V Reference Capable of Supplying Sensor Power
• Fully Accessible Error Amplifier for Closed Loop Servo
Applications
• High Current Drivers Can Control External 3−Phase MOSFET
Bridge
• Cycle−By−Cycle Current Limiting
• Pinned−Out Current Sense Reference
• Internal Thermal Shutdown
• Selectable 60°/300° or 120°/240° Sensor Phasings
• Can Efficiently Control Brush DC Motors with External MOSFET
H−Bridge
• NCV Prefix for Automotive and Other Applications Requiring Site
and Control Changes
• Pb−Free Packages are Available
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P SUFFIX
PLASTIC PACKAGE
CASE 724
24
1
DW SUFFIX
PLASTIC PACKAGE
CASE 751E
(SO−24L)
24
1
PIN CONNECTIONS
Top Drive
Output
BT 1
AT 2
Fwd/Rev 3
Sensor
Inputs
SA 4
SB 5
SC 6
Output Enable 7
Reference Output 8
Current Sense
Noninverting Input
9
Oscillator 10
Error Amp
Noninverting Input
Error Amp
Inverting Input
11
12
24 CT
23 Brake
22 60°/120° Select
21 AB
20 BB
19 CB
Bottom
Drive
Outputs
18 VC
17 VCC
16 Gnd
15
Current Sense
Inverting Input
14 Fault Output
13
Error Amp Out/
PWM Input
(Top View)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 27 of this data sheet.
DEVICE MARKING INFORMATION
See general marking information in the device marking
section on page 27 of this data sheet.
© Semiconductor Components Industries, LLC, 2004
April, 2004 − Rev. 7
1
Publication Order Number:
MC33035/D
MC33035, NCV33035
ELECTRICAL CHARACTERISTICS (continued) (VCC = VC = 20 V, RT = 4.7 k, CT = 10 nF, TA = 25°C, unless otherwise noted.)
Characteristic
Symbol
Min
Typ Max Unit
ERROR AMPLIFIER
Output Voltage Swing
High State (RL = 15 k to Gnd)
Low State (RL = 15 k to Vref)
OSCILLATOR SECTION
Oscillator Frequency
Frequency Change with Voltage (VCC = 10 to 30 V)
Sawtooth Peak Voltage
Sawtooth Valley Voltage
LOGIC INPUTS
Input Threshold Voltage (Pins 3, 4, 5, 6, 7, 22, 23)
High State
Low State
Sensor Inputs (Pins 4, 5, 6)
High State Input Current (VIH = 5.0 V)
Low State Input Current (VIL = 0 V)
Forward/Reverse, 60°/120° Select (Pins 3, 22, 23)
High State Input Current (VIH = 5.0 V)
Low State Input Current (VIL = 0 V)
Output Enable
High State Input Current (VIH = 5.0 V)
Low State Input Current (VIL = 0 V)
VOH
VOL
fOSC
∆fOSC/∆V
VOSC(P)
VOSC(V)
4.6
−
22
−
−
1.2
VIH 3.0
VIL −
IIH −150
IIL − 600
IIH −75
IIL − 300
IIH − 60
IIL − 60
5.3
0.5
25
0.01
4.1
1.5
2.2
1.7
−70
− 337
− 36
−175
− 29
− 29
−
1.0
28
5.0
4.5
−
−
0.8
− 20
−150
−10
−75
−10
−10
V
kHz
%
V
V
V
µA
µA
µA
CURRENT−LIMIT COMPARATOR
Threshold Voltage
Input Common Mode Voltage Range
Input Bias Current
OUTPUTS AND POWER SECTIONS
Top Drive Output Sink Saturation (Isink = 25 mA)
Top Drive Output Off−State Leakage (VCE = 30 V)
Top Drive Output Switching Time (CL = 47 pF, RL = 1.0 k)
Rise Time
Fall Time
Bottom Drive Output Voltage
High State (VCC = 20 V, VC = 30 V, Isource = 50 mA)
Low State (VCC = 20 V, VC = 30 V, Isink = 50 mA)
Bottom Drive Output Switching Time (CL = 1000 pF)
Rise Time
Fall Time
Fault Output Sink Saturation (Isink = 16 mA)
Fault Output Off−State Leakage (VCE = 20 V)
Under Voltage Lockout
Drive Output Enabled (VCC or VC Increasing)
Hysteresis
Power Supply Current
Pin 17 (VCC = VC = 20 V)
Pin 17 (VCC = 20 V, VC = 30 V)
Pin 18 (VCC = VC = 20 V)
Pin 18 (VCC = 20 V, VC = 30 V)
Vth
VICR
IIB
85
−
−
101
3.0
− 0.9
VCE(sat)
IDRV(leak)
−
−
0.5
0.06
tr
tf
VOH
VOL
− 107
− 26
(VCC − 2.0)
−
(VCC −1.1)
1.5
tr
tf
VCE(sat)
IFLT(leak)
Vth(on)
VH
ICC
IC
−
−
−
−
8.2
0.1
−
−
−
−
38
30
225
1.0
8.9
0.2
12
14
3.5
5.0
115
−
− 5.0
1.5
100
300
300
−
2.0
200
200
500
100
10
0.3
16
20
6.0
10
mV
V
µA
V
µA
ns
V
ns
mV
µA
V
mA
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4
4페이지 1.2
VCC = 20 V
VC = 20 V
TA = 25°C
0.8
MC33035, NCV33035
100
0.4
0
0 10 20 30 40
ISink, SINK CURRENT (mA)
Figure 13. Top Drive Output Saturation
Voltage versus Sink Current
VCC = 20 V
VC = 20 V
0
RL = 1.0 k
CL = 15 pF
TA = 25°C
100 ns/DIV
Figure 14. Top Drive Output Waveform
VCC = 20 V
VC = 20 V
100
CL = 1.0 nF
100
TA = 25°C
VCC = 20 V
VC = 20 V
CL = 15 pF
TA = 25°C
0
50 ns/DIV
Figure 15. Bottom Drive Output Waveform
0
50 ns/DIV
Figure 16. Bottom Drive Output Waveform
0
−1.0
VCC = 20 V
− 2.0 VC = 20 V
TA = 25°C
VC
Source Saturation
(Load to Ground)
2.0
1.0 Gnd
Sink Saturation
(Load to VC)
0
0 20 40 60 80
IO, OUTPUT LOAD CURRENT (mA)
Figure 17. Bottom Drive Output Saturation
Voltage versus Load Current
16
14 ICC
12
RT = 4.7 k
10 CT = 10 nF
Pins 3−6, 9, 15, 23 = Gnd
8.0 Pins 7, 22 = Open
6.0 TA = 25°C
4.0
IC
2.0
0
0 5.0 10 15 20 25 30
VCC, SUPPLY VOLTAGE (V)
Figure 18. Power and Bottom Drive Supply
Current versus Supply Voltage
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7
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