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PDF MC33039 Data sheet ( Hoja de datos )

Número de pieza MC33039
Descripción Closed Loop Brushless Motor Adapter
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MC33039, NCV33039
Closed Loop Brushless
Motor Adapter
The MC33039 is a high performance closed−loop speed control
adapter specifically designed for use in brushless DC motor control
systems. Implementation will allow precise speed regulation without
the need for a magnetic or optical tachometer. This device contains
three input buffers each with hysteresis for noise immunity, three
digital edge detectors, a programmable monostable, and an internal
shunt regulator. Also included is an inverter output for use in systems
that require conversion of sensor phasing. Although this device is
primarily intended for use with the MC33035 brushless motor
controller, it can be used cost effectively in many other closed−loop
speed control applications.
Features
Digital Detection of Each Input Transition for Improved Low Speed
Motor Operation
TTL Compatible Inputs With Hysteresis
Operation Down to 5.5 V for Direct Powering from MC33035
Reference
Internal Shunt Regulator Allows Operation from a Non−Regulated
Voltage Source
Inverter Output for Easy Conversion between 60°/30w0w°w.DaantaSdheet4U.com
120°/240° Sensor Phasing Conventions
Pb−Free Packages are Available
http://onsemi.com
MARKING
DIAGRAMS
PDIP−8
MC33039P
N SUFFIX
AWL
CASE 626
YYWWG
11
SOIC−8
33039
D SUFFIX
ALYW
CASE 751
G
11
A = Assembly Location
WL, L = Wafer Lot
YY, Y = Year
WW, W = Work Week
G or G = Pb−Free Package
PIN CONNECTIONS
φA
4
3
φA
+
20 k
To Rotor
Position
Sensors
2
φB
1
φC
Delay
Delay
Delay
VCC
8
+ 8.25 V
SQ
R
RT
6
+ CT
R
+
2R −
5
fout
15 k
+
+−
0.3 V
Inputs
φC 1
φB 2
φA 3
φA 4
8 VCC
7 GND
6 RT/CT
5 fout
(Top View)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 6 of this data sheet.
7
GND
Representative Block Diagram
© Semiconductor Components Industries, LLC, 2006
April, 2006 − Rev. 5
1
Publication Order Number:
MC33039/D

1 page




MC33039 pdf
MC33039, NCV33039
100
VCC = 6.25 V
TA = 25°C
10
CT = 220 nF
1.0
CT = 22 nF
0.1
0.01
2.0
CT = 2.2 nF
20
RT , TIMING RESISTOR (kW)
Figure 3. fout, Pulse Width
versus Timing Resistor
+ 1.6
VCC = 6.25 V
RT = 10 k
+ 0.8 CT = 22 nF
0
− 0.8
− 1.6
200 − 55 − 25 0 + 25 + 50 + 75 + 100 + 125
TA , AMBIENT TEMPERATURE (°C)
Figure 4. fout, Pulse Width Change
versus Temperature
+ 4.0
TA = 25°C
+ 2.0
0
− 2.0
− 4.0
4.5
5.5 6.5 7.5
VCC , SUPPLY VOLTAGE (V)
Figure 5. fout, Pulse Width Change
versus Supply Voltage
8.5
20
16
12
8.0
4.0
0
0
Pins 1, 2, 3
Connected
together
TA = −40°C
TA = 125°C
TA = 25°C
2.0 4.0 6.0 8.0
VCC , SUPPLY VOLTAGE (V)
Figure 6. Supply Current versus
Supply Voltage
10
0
− 2.0
− 4.0
+ 0.4
+ 0.2
0
0
VCC
Source Saturation
(Load to Ground)
VCC = 6.25 V
TA = 25°C
+ 16
+ 8.0
Sink Saturation
(Load to VCC)
GND
4.0 8.0
12
IO , OUTPUT LOAD CURRENT (mA)
Figure 7. fout, Saturation
versus Load Current
0
− 8.0
− 16
16 − 55
VCC = 6.25 V
IO = 5.0 mA
D Sink Saturation
(Load to VCC)
+ 0.6
+ 0.4
D Source Saturation
(Load to Ground)
+ 0.2
0
− 0.2
− 25 0 + 25 + 50 + 75 + 100
TA , AMBIENT TEMPERATURE (°C)
Figure 8. fout, Saturation Change
versus Temperature
+ 125
http://onsemi.com
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