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Número de pieza | MC33033 | |
Descripción | Brushless DC Motor Controller | |
Fabricantes | ON Semiconductor | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de MC33033 (archivo pdf) en la parte inferior de esta página. Total 27 Páginas | ||
No Preview Available ! MC33033, NCV33033
Brushless DC
Motor Controller
The MC33033 is a high performance second generation, limited
feature, monolithic brushless dc motor controller which has evolved
from ON Semiconductor’s full featured MC33034 and MC33035
controllers. It contains all of the active functions required for the
implementation of open loop, three or four phase motor control. The
device consists of a rotor position decoder for proper commutation
sequencing, temperature compensated reference capable of supplying
sensor power, frequency programmable sawtooth oscillator, fully
accessible error amplifier, pulse width modulator comparator, three
open collector top drivers, and three high current totem pole bottom
drivers ideally suited for driving power MOSFETs. Unlike its
predecessors, it does not feature separate drive circuit supply and
ground pins, brake input, or fault output signal.
Included in the MC33033 are protective features consisting of
undervoltage lockout, cycle−by−cycle current limiting with a
selectable time delayed latched shutdown mode, and internal thermal
shutdown.
Typical motor control functions include open loop speed, forward or
reverse direction, and run enable. The MC33033 is designed to operate
brushless motors with electrical sensor phasings of 60°/300° or
120°/240°, and can also efficiently control brush dc motors.
Features
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• 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
• Internal Thermal Shutdown
• Selectable 60°/300° or 120°/240° Sensor Phasings
• Also 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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PDIP−20
P SUFFIX
CASE 738
SO−20L
DW SUFFIX
CASE 751D
20
1
20
1
PIN CONNECTIONS
Top Drive
Output
BT 1
AT 2
Fwd/Rev 3
Sensor
Inputs
SA 4
SB 5
SC 6
Reference Output 7
Oscillator 8
Error Amp
Non Inverting Input
Error Amp
Inverting Input
9
10
20 CT
19 Output Enable
18 60°/120° Select
17 AB
16 BB
15 CB
Bottom
Drive
Outputs
14 VCC
13 Gnd
12
Current Sense
Non Inverting Input
11 Error Amp Out/
PWM Input
(Top View)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 25 of this data sheet.
DEVICE MARKING INFORMATION
See general marking information in the device marking
section on page 25 of this data sheet.
© Semiconductor Components Industries, LLC, 2007
January, 2007 − Rev. 9
1
Publication Order Number:
MC33033/D
1 page MC33033, NCV33033
ELECTRICAL CHARACTERISTICS (continued) (VCC = 20 V, RT = 4.7 k, CT = 10 nF, TA = 25°C, unless otherwise noted.)
Characteristic
Symbol
Min
Typ Max Unit
OSCILLATOR SECTION
Oscillator Frequency
Frequency Change with Voltage (VCC = 10 V to 30 V)
Sawtooth Peak Voltage
Sawtooth Valley Voltage
LOGIC INPUTS
Input Threshold Voltage (Pins 3, 4, 5, 6, 18, 19)
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 and Output Enable
(Pins 3, 18, 19)
High State Input Current (VIH = 5.0 V)
Low State Input Current (VIL = 0 V)
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 = 30 V, Isource = 50 mA)
Low State (VCC = 30 V, Isink = 50 mA)
Bottom Drive Output Switching Time (CL = 1000 pF)
Rise Time
Fall Time
Under Voltage Lockout
Drive Output Enabled (VCC Increasing)
Hysteresis
Power Supply Current
fOSC
ΔfOSC/ΔV
VOSC(P)
VOSC(V)
22
−
−
1.2
25 28
0.01 5.0
4.1 4.5
1.5 −
VIH 3.0
VIL −
2.2 −
1.7 0.8
IIH −150 −70 −20
IIL
− 600
− 337
−150
IIH −75
− 36
IIL −300 −175
Vth
VICR
IIB
85
−
−
101
3.0
− 0.9
VCE(sat)
IDRV(leak)
−
−
0.5
0.06
tr − 107
tf −
26
VOH
VOL
(VCC − 2.0) (VCC − 1.1)
− 1.5
tr −
tf −
38
30
Vth(on)
VH
ICC
8.2
0.1
−
8.9
0.2
15
−10
−75
115
−
− 5.0
1.5
100
300
300
−
2.0
200
200
10
0.3
22
kHz
%
V
V
V
μA
μA
mV
V
μA
V
μA
ns
V
ns
V
mA
http://onsemi.com
5
5 Page MC33033, NCV33033
SA 4
20 k
Sensor Inputs SB 5
20 k
SC 6
Forward/Revers
e
60°/120° Select
3
18
20 k
40 k
40 k
Rotor
Position
Decoder
Output Enable
19
VCC 14
Reference Output
7
40 k
Reference
Regulator
Undervoltage
Lockout
8.9 V
Noninv. Input 9 Error Amp
Faster
10
RT 11
PWM
Error Amp Out
PWM Input
CT
8
Oscillator
Sink Only
=
Positive True
Logic With
Hysteresis
4.5 V
Thermal
Shutdown
Latch
R
Q
S
Latch
S
Q
R
13 Gnd
ILimit
100 mV
Figure 19. Representative Block Diagram
VM
2
AT
1 Top
BT Drive
Outputs
20
CT
17 AB
16 Bottom
BB Drive
Outputs
15 CB
12 Current Sense
Input
http://onsemi.com
11
11 Page |
Páginas | Total 27 Páginas | |
PDF Descargar | [ Datasheet MC33033.PDF ] |
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