UTC6651 [ETC]
MOTOR SPEED CONTROL CIRCUIT; 电机速度控制电路
| 型号： | UTC6651 |
| 厂家： | 
ETC |
| 描述： | MOTOR SPEED CONTROL CIRCUIT |
| 文件： | 总2页 (文件大小：65K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
UTC6651
LINEAR INTEGRATED CIRCUIT
MOTOR SPEED CONTROL
CIRCUIT
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DESCRIPTION
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The UTC6651 is a monolithic integrated circuit designed for
the rotating speed control of a compact DC motor which is
used for a tape recorder, recoder player etc.
1
FEATURES
* Wide operating supply voltage:Vcc=3.5V- 14.4V
* Small four-lead plastic package for compact motor.
* Few external components
* Stable low reference voltage( 1.0V, typical ),
* Wide motor speed setting
* Reverse voltage protection circuit built-in.
*
TO-126B
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BLOCK DIAGRAM
CONTROL
2
V
REF
4
MOTOR
COM
V
CC
1
3
GND
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YOUW ANG ELECTRONICS CO.LTD
UTC6651
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS
(Ta=25°C)
Characteristic
Supply Voltage
Symbol
VCC
Value
14.4
Unit
V
Supply Current(note 1)
Power Dissipation(note 2)
Operating Temperature
Storage Temperature
Icc
PD
2000
mA
mW
°C
1300
Topr
Tstg
-20 ~ꢀ+75
-40 ~ꢀ +150
°C
NOTE: 1. Ta=25°C,with a 10x10 mm bakelite PCB(3.5µm Cu leaf)
2. Test time < 5seconds.
ELECTRICAL CHARACTERISTICS
(Ta=25°C,unless otherwise specified)
Characteristic
Reference Voltage
Bias Current
Current Proportional Constant
Saturation Voltage
Symbol
VREF
IBias
K
VSAT
Test Conditions
VCC=6VꢁRa=1kΩ
Vcc=6V
Vcc=6V,DI4=40mA
VCC=4.2V,Ra=5.0Ω
Min
Typ
1.0
0.8
40
1.15
Max
Units
V
mA
0.85
1.15
1.8
45
35
2
V
∆V REF
Voltage Characteristics 1
Voltage Characteristics 2
Current Characteristics 1
Current Characteristics 2
Temperature Characteristics 1
Temperature Characteristics 2
-0.1
0.2
%/V
VCC=3.5V~14.0V,Ra=1kΩ
VCC=3.5V~14.0V,DI4=40mA
I4=50mA~200mA
Vcc
V
REF
∆K
%/V
%/mA
%/mA
%/°C
%/°C
Vcc
I4
K
∆V REF
REF
-0.02
-0.01
0.01
0.01
V
∆K
I4=50mA~200mA
I4
K
∆V REF
REF
TA=-20~+75°CꢂVCC=6.0V
Ra=1kΩ
Ta
Ta
V
∆K
TA=-20~+75°CꢂVCC=6.0V
DI4=40mA
K
CHARACTERISTICS CURVE
APPLICATION CIRCUIT
Power Dissipation Vs. Temperature
Vcc
2.0
22µH
Micro
Motor
Ea
Ra
(1) With a 10x10mm blakelite
PCB(35µm Cu leaf)
(2) Without heat sink
R
T
180Ω
M
1.6
10µF
2
(1)
Rs
1.2
1
UTC6651
4
0.8
(2)
3
0.4
Motor Constant:
Ka-- Electromotive force constant=1.1mV/rpm
0
-20
20
60
100
140
180
Ra-- Internal Resistor=5Ω
Ambient Temperature,Ta(
k
)
KT=Torque Constant=100g.cm/A
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YOUW ANG ELECTRONICS CO.LTD
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