ICs for Motor
■ Overview
The 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, V
CC
= 6V ~ 20V
•
Reverse voltage protection circuit is built-in
AN6652
Motor Control Circuit
Unit : mm
11.5max.15.0min.
8.0
+ 0.5
– 0.1
3.05
3.8
1.94
1234
0.5
±0.2
4-Lead SIP Package (SSIP004-P-0000)
1.778
1.778
5.334
1234
3.5max.
0.5±0.1
1.44 1.76
1.778
GND
COM
2 3 41
× 20
(K)
MotorControlV
CC
V
REF
■ Pin Descriptions
Pin No.
Pin Name
1
2
3
4
V
CC
Control Pin
GND
Motor Pin
22
1500
1300
–20 ~ + 75
– 40 ~ +150
■ Absolute Maximum Ratings (Ta= 25˚C)
*
1
Ta = 25˚C, With a 10 × 10mm bakelite printed circuit board (35µm Cu leaf)
*
2
t ≤ 5s
V
CC
ICC
*
2
PD
*
1
T
opr
T
stg
Supply Voltage
Supply Current
Power Dissipation
Operating Ambient Temperature
Storage Temperature
V
mA
mW
˚C
˚C
Parameter Symbol Rating Unit
■ Electrical Characteristics (Ta = 25˚C)
V
CC
= 12V, Ra = 1kΩ
V
CC
= 12V
V
CC
= 12V, DI4 = 20mA
V
CC
= 8.0V, Ra = 18Ω
V
CC
= 9V ~ 16V, Ra = 1kΩ
V
CC
= 9V ~ 16V, DI4 = 20mA
I
4
= 10mA ~ 50mA
I
4
= 50mA ~ 100mA
Ta
= –20˚C + 75˚C,
V
CC
= 12V, Ra = 1kΩ
Ta
= –20˚C + 75˚C,
DI
4
= 20mA
Parameter Symbol Condition min. typ. max. Unit
1.25
0.1
20
1
– 0.02
0.2
– 0.03
– 0.01
0.01
0.01
Reference Voltage
Bias Current
Current Proportional Constant
Saturation Voltage
Voltage Characteristics (1)
Voltage Characteristics (2)
Current Characteristics (1)
Current Characteristics (2)
Temperature Characteristics (1)
Temperature Characteristics (2)
V
REF
I
Bias
K
V
sat
V
mA
V
%/V
%/V
%/mA
%/mA
%/˚C
%/˚C
1.15
18
– 0.6
– 0.7
– 0.1
– 0.15
1.40
1
22
2
0.6
0.7
0.1
0.15
∆V
REF
V
REF
/V
CC
∆K
K
/V
CC
∆V
REF
V
REF
/I
4
∆K
K
/I
4
∆V
REF
V
REF
/Ta
∆K
K
/Ta
PD –Ta
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
Ambient Temperature Ta (˚C)
Power Dissipatior P
D
(W)
400 20 10060
■ Characteristics Curve
120 160–20 80 140 180
(1) With a 10 × 10mm
bakelite printed
circuit board
(35µm Cu leaf)
(2) Without heat sink
(1)
(2)
41
2
3
AN6652
Micro
Motor
M
330Ω
R
T
R
S
22µH
10µF
Ea
Ra
V
CC
■ Application Circuit
Ka : Generation constant=2.4mV/rpm
R
a
: Internal resistor=18Ω
K
T
: Torque constant=200g · cm/A
Motor Constants