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KIA6903P Datasheet Preview

KIA6903P Datasheet

BIPOLAR LINEAR INTEGRATED CIRCUIT

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SEMICONDUCTOR
TECHNICAL DATA
KIA6903P
BIPOLAR LINEAR INTEGRATED CIRCUIT
DC MOTOR SPEED CONTROLLER FOR CASSETTE
TAPE RECORDER SYSTEM
The KIA6903P is a monolithic IC developed for speed control of
general purpose DC motors. This IC consist of a reference voltage
generator, current multiplier, comparator and start circuit.
The IC controls the speed of a DC motor by detecting counter
electromotive force from the DC motor.
FEATURES
Wide Range of Working Power Supply Voltage.
(VCC=3.5 18V)
Very Large Starting Torque at the low Voltage.
Large Allowable Loss due to Effective Utilization of Substrate Radiation.
Usable for Various DC Motors by Means of Changing Constants of the
External Components.
DW
dP
A
85
14
TQ
DIM MILLIMETERS
A 9.6+_ 0.2
B 6.45+_ 0.2
D 1.52+_ 0.1
d 0.46+_ 0.1
G 0.50 MIN
H 3.8+_ 0.3
L 3.3+_ 0.3
P 2.54
T 0.25+0.1/-0.05
W 7.62
Q 0 - 15
APPLICATION
Radio Cassette Tape Recorders
DIP-8
ABSOLUTE MAXIMUM RATINGS (Ta=25 )
PARAMETERS SYMBOL LIMITS UNIT CONDITIONS
Supply Voltage
VCC 18 V
-
Power Dissipation
PD 1.4* W PCB:9 . T=1.0
Note : Derated above Ta=25 in the proportion of 11.2mW/ .
BLOCK DIAGRAM
KIA6903P
1
8
27
36
VREF
45
2002. 7. 10
Revision No : 5
1/2




KEC

KIA6903P Datasheet Preview

KIA6903P Datasheet

BIPOLAR LINEAR INTEGRATED CIRCUIT

No Preview Available !

KIA6903P
ELECTRICAL CHARACTERISTICS (VCC=12V, Ta=25 )
CHARACTERISTICS
SYMBOL
TEST
CIRCUIT
Bias Current
I4 Fig.1(d)
Output Saturation Voltage
Vsat Fig.1(c)
Reference Voltage
VREF
Fig.1(a)
Current Ratio
K Fig.1(b)
Reference Voltage Variance-
Power Supply Voltage Variance
Current Ratio Variance-
Power Supply Voltage Variance
VREF /
VREF
VCC
K
K / VCC
Fig.1(a)
Fig.1(b)
Reference Voltage Variance-
Motor Current Variance
Current Ratio Variance-
Motor Current Variance
VREF /
VREF
IM
K
K / IM
Fig.1(a)
Fig.1(b)
Reference Voltage Variance-
Ambient Temperature Variance
Current Ratio Variance-
Ambient Temperature Variance
VREF /
VREF
Ta
K
/
K
Ta
Fig.1(a)
Fig.1(b)
TEST CONDITION
RM=180
VIN=4.2V, RM=4.4
IM=10mA
RM1=44 , RM2=33
IM=100mA, VCC=6.3 18V
IM=100mA, VCC=6.3 18V
IM=30 200mA
IM=30 200mA
IM=100mA, Ta=-25 75
IM=100mA, Ta=-25 75
MIN. TYP. MAX. UNIT
0.5 0.8 1.2
- 1.5 2.0
1.10 1.27 1.40
18 20 22
mA
V
V
-
- 0.06 - %/V
- 0.4 - %/V
- -0.02 - %/mA
- -0.02 - %/mA
- 0.01 - %/
- 0.01 - %/
TEST CIRCUIT
RM
V
4 VREF
KIA6903P
5
1(2)
8
VCC
IM
(a)
VCC
A1 I 4 '
VCC
A2 IM
4
KIA6903P
5
1(2)
8
(b)
K=
I M (SW 2 ) _ I M (SW 1 )
I 4 ' (SW 2 ) _ I 4 ' (SW 1 )
A1 I 4 '
VCC
A2 I M
4
KIA6903P
5
1(2)
8
V V(sat)
(c)
4
KIA6903P
5
1(2)
8
(d)
I4 =
I4 '
_
IM
K
Fig.1
APPLICATION CIRCUIT
(RT < RM x 20)
RS 1k
Rev adjust
M RM 4
87
6
KIA6903P
5
VCC
20:1 +
-
VREF
STARTER
1234
* 1 , 2 , 3 , 6 , 7 Pin must be connected with GND
2002. 7. 10
Revision No : 5
2/2


Part Number KIA6903P
Description BIPOLAR LINEAR INTEGRATED CIRCUIT
Maker KEC
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