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Motorola Electronic Components Datasheet

MC33039 Datasheet

CLOSED LOOP BRUSHLESS MOTOR ADAPTER

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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.
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°/300° and 120°/240°
Sensor Phasing Conventions
Order this document by MC33039/D
MC33039
CLOSED LOOP
BRUSHLESS MOTOR
ADAPTER
SEMICONDUCTOR
TECHNICAL DATA
8
1
P SUFFIX
PLASTIC PACKAGE
CASE 626
8
1
D SUFFIX
PLASTIC PACKAGE
CASE 751
(SO–8)
3
φA
+
20 k
To Rotor
Position
Sensors
2
φB
1
φC
Representative Block Diagram
φA
4
VCC
8
+ 8.25 V
Delay
RT
6
+ CT
R
+
2R –
5
fout
15 k
Delay
Delay
SQ
R
+
+–
0.3 V
7
Gnd
PIN CONNECTIONS
Inputs
φC 1
φB 2
φA 3
φA 4
8 VCC
7 Gnd
6 RT/CT
5 fout
(Top View)
ORDERING INFORMATION
Device
Operating
Temperature Range
Package
MC33039D
TA = – 40° to +85°C
MC33039P
SO–8
Plastic DIP
MOTOROLA ANALOG IC DEVICE DATA
© Motorola, Inc. 1996
Rev 0
1


Motorola Electronic Components Datasheet

MC33039 Datasheet

CLOSED LOOP BRUSHLESS MOTOR ADAPTER

No Preview Available !

MAXIMUM RATINGS
Rating
VCC Zener Current
Logic Input Current (Pins 1, 2, 3)
Output Current (Pins 4, 5), Sink or Source
Power Dissipation and Thermal Characteristics
Maximum Power Dissipation @ TA = + 85°C
Thermal Resistance, Junction–to–Air
Operating Junction Temperature
Operating Ambient Temperature Range
Storage Temperature Range
MC33039
Symbol
IZ(VCC)
IIH
IDRV
Value
30
5.0
20
Unit
mA
mA
mA
PD
RθJA
TJ
TA
Tstg
650
100
+ 150
– 40 to + 85
– 65 to +
150
mW
°C/W
°C
°C
°C
ELECTRICAL CHARACTERISTICS (VCC = 6.25 V, RT = 10 k, CT = 22 nF, TA = 25°C, unless otherwise noted)
Characteristic
Symbol
Min
Typ
Max
LOGIC INPUTS
Input Threshold Voltage
High State
Low State
Hysteresis
Input Current
High State (VIH = 5.0 V)
φA
φB, φC
Low State (VIL = 0 V)
φA
φB, φC
VIH 2.4
VIL —
VH 0.4
IIH
– 40
IIL
– 190
2.1
1.4
0.7
– 60
– 0.3
– 300
– 0.3
1.0
0.9
– 80
– 5.0
– 380
– 5.0
MONOSTABLE AND OUTPUT SECTIONS
Output Voltage
High State
fout (Isource = 5.0 mA)
φA (Isource = 2.0 mA)
Low State
fout (Isink = 10 mA)
φA (Isink = 10 mA)
VOH
3.60 3.95 4.20
4.20 4.75
VOL
0.25 0.50
— 0.25 0.50
Capacitor CT Discharge Current
Idischg
20
35
60
Output Pulse Width (Pin 5)
tPW 205 225 245
POWER SUPPLY SECTION
Power Supply Operating Voltage Range (TA = – 40° to + 85°C)
VCC
5.5
VZ
Power Supply Current
ICC 1.8 3.9 5.0
Zener Voltage (IZ = 10 mA)
VZ 7.5 8.25 9.0
pZener Dynamic Impedance (IZ = 10 mA to 20 mA, f 1.0 kHz)
Zka
2.0
5.0
Unit
V
µA
V
mA
µs
V
mA
V
2 MOTOROLA ANALOG IC DEVICE DATA


Part Number MC33039
Description CLOSED LOOP BRUSHLESS MOTOR ADAPTER
Maker Motorola
PDF Download

MC33039 Datasheet PDF






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