Datasheet

UTC AN6652
LINEAR INTEGRATED CIRCUIT
MOTOR CONTROL CIRCUIT
DESCRIPTION
The UTC AN6652 is an IC designed for the rotating
speed control of a compact DC motor, which is used
for a tape recorder, record player, etc.
FEATURES
*Small four-lead plastic package for compact motor.
Fewer external parts.
*Stable low reference voltage (1.25V typ.), wide motor
speed setting
*Highly stable operation over a wide range of supply
voltage and torque supply voltage, Vcc=6V~20V
*Reverse voltage protection circuit is built-in.
1
TO-126B
1: Vcc
2: Control
3: GND
4: Motor
BLOCK DIAGRAM
VREF
×20
(K)
COM
1
2
3
4
Vcc
Control
GND
Motor
ABSOLUTE MAXIMUM RATINGS (Ta=25℃)
PARAMETER
SYMBOL
RATINGS
Supply Voltage
Vcc
22
Supply Current
Icc *2
1.5
Power Dissipation
PD *1
1.3
-20~+75
Operating Temperature
Topr
-40~+150
Storage Temperature
Tstg
*1. Ta = 25°C, With a 10×10mm bakelite printed circuit board (35µm Cu leaf)
*2. t≤5s
UTC
UNIT
V
A
W
°C
°C
UNISONIC TECHNOLOGIES CO., LTD.
1
QW-R109-011,,A
UTC AN6652
LINEAR INTEGRATED CIRCUIT
ELECTRICAL CHARACTERISTICS (Ta=25℃)
PARAMETER
SYMBOL
Reference Voltage
Bias Current
Current Proportional Constant
Saturation Voltage
Voltage Characteristics (1)
TEST CONDITIONS
VREF
IBias
K
Vsat
△VREF
Vcc
VREF
Voltage Characteristics (2)
△K
K
Vcc
MIN
TYP
MAX UNIT
Vcc=12V,Ra=1kΩ
Vcc=12V
Vcc=12V, DI4=20mA
Vcc=8.0V, Ra=18Ω
1.15
1.25
0.1
20
1
1.40
1
22
2
V
mA
Vcc=9V~16V, Ra=1kΩ
-0.6
-0.02
0.6
%/V
Vcc=9V~16V, DI4=20mA
-0.7
0.2
0.7
%/V
%/mA
18
V
Current Characteristics (1)
△VREF
I4
VREF
I4=10 mA ~50mA
-0.1
-0.03
0.1
Current Characteristics (2)
△K
I4
K
I4=50mA~100mA
-0.15
-0.01
0.15 %/mA
Ta=-20℃~+75℃,
Vcc=12V,Ra=1kΩ
0.01
%/℃
Ta=-20℃~+75℃,
DI4=20mA
0.01
%/℃
Temperature Characteristics (1)
△VREF
Ta
VREF
Temperature Characteristics (2)
△K
Ta
K
APPLICATION CIRCUIT
RT 330Ω
Micro
M
Motor
Ea
Ra
22μH
Vcc
Rs
2
UTC
1
AN6652
10μF
4
3
Motor Constants
UTC
Ka:Generation constant=2.4mV/rpm
Ra:Internal resistor = 18Ω
KT:Torque constant=200g.cm/A
UNISONIC TECHNOLOGIES CO., LTD.
2
QW-R109-011,,A
UTC AN6652
LINEAR INTEGRATED CIRCUIT
CHARACTERISTICS CURVE
PD -Ta
1.6
(1) With a 10×10mm
bakelite printed
circuit board
(35μm Cu leaf)
(2) Without heat sink
1.4
Power Dissipatior, PD (W)
1.2
(1)
1.0
0.8
(2)
0.6
0.4
0.2
0
-20 0 20 40 60 80 100 120 140160 180
Ambient Temperature, Ta (℃)
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UTC
UNISONIC TECHNOLOGIES CO., LTD.
3
QW-R109-011,,A
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