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MC33039のメーカーはON Semiconductorです、この部品の機能は「Closed Loop Brushless Motor Adapter」です。 |
部品番号 | MC33039 |
| |
部品説明 | Closed Loop Brushless Motor Adapter | ||
メーカ | ON Semiconductor | ||
ロゴ | |||
このページの下部にプレビューとMC33039ダウンロード(pdfファイル)リンクがあります。 Total 8 pages
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, NCV33039
Rotor Electrical Position (Degrees)
0 60 120 180 240 300 360
480
φA
60° Sensor
Electrical
Phasing
Input
φB
φC
600 720
φA
120° Sensor
Electrical
Phasing
Input
φB
φC
φA Output
Latch ISetI Input
RT/CT
Vth ≈ 0.67 VCC
fout Output
Vout (AVG)
Constant Motor Speed
Increasing Motor
Speed
Figure 1. Typical Three Phase, Six Step Motor Application
OPERATING DESCRIPTION
The MC33039 provides an economical method of
implementing closed−loop speed control of brushless DC
motors by eliminating the need for a magnetic or optical
tachometer. Shown in the timing diagram of Figure 1, the
three inputs (Pins 1, 2, 3) monitor the brushless motor rotor
position sensors. Each sensor signal transition is digitally
detected, ORied at the Latch iSeti Input, and causes CT to
discharge. A corresponding output pulse is generated at fout
(Pin 5) of a defined amplitude, and programmable width
determined by the values selected for RT and CT (Pin 6). The
average voltage of the output pulse train increases with
motor speed. When fed through a low pass filter or
integrator, a DC voltage proportional to speed is generated.
Figure 2 shows the proper connections for a typical closed
loop application using the MC33035 brushless motor
controller. Constant speed operation down to 100 RPM is
possible with economical three phase four pole motors.
The φA inverter output (Pin 4) is used in systems where the
controller and motor sensor phasing conventions are not
compatible. A method of converting from either convention
to the other is shown in Figure 3. For a more detailed
explanation of this subject, refer to the text above Figure 39
on the MC33035 data sheet.
The output pulse amplitude VOH is constant with
temperature and controlled by the supply voltage on VCC
(Pin 8). Operation down to 5.5 V is guaranteed over
temperature. For systems without a regulated power supply,
an internal 8.25 V shunt regulator is provided.
http://onsemi.com
3
3Pages MC33039, NCV33039
ORDERING INFORMATION
Device
Operating Temperature Range
Package
Shipping†
MC33039D
MC33039DG
MC33039DR2
MC33039DR2G
TA = −40°C to +85°C
SOIC−8
98 Units / Rail
2500 / Tape & Reel
MC33039P
MC33039PG
PDIP−8
50 Units / Rail
NCV33039DR2*
NCV33039DR2G*
TA = −40°C to +125°C
SOIC−8
2500 / Tape & Reel
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
*NCV33039: Tlow = −40C, Thigh = +125C. Guaranteed by design. NCV prefix is for automotive and other applications requiring
site and change control.
http://onsemi.com
6
6 Page | |||
ページ | 合計 : 8 ページ | ||
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PDF ダウンロード | [ MC33039 データシート.PDF ] |
データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
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