TDA1151.PDF

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TDA1151
MOTOR SPEED REGULATOR
EXCELLENT VERSATILITY IN USE
HIGH OUTPUT CURRENT (UP TO 800mA)
LOW QUIESCENT CURRENT (1.7mA)
LOW REFERENCE VOLTAGE (1.2V)
EXCELLENT PARAMETERS STABILITY
VERSUS TEMPERATURE
SOT-32
DESCRIPTION
The TDA1151 is a monolithic integrated circuit in
SOT-32 plastic package. It is intended for use as
speed regulator for DC motors of record players,
tape and cassette recorders, movie cameras, toys
etc.
ORDERING NUMBER : TDA1151
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
V s
Supply voltage
20
V
P tot
Total power dissipation at T amb =70
°
C
0.8
W
at T case = 100
°
C
5
W
T stg ,T j
Storage and junction temperature
-40 to 150
C
APPLICATION CIRCUIT
March 1993
1/8
°
112692280.002.png
TDA1151
CONNECTION DIAGRAM
TEST CIRCUIT
2/8
112692280.003.png
TDA1151
THERMAL DATA
Symbol
Parameter
Value
Unit
R th j-case
Thermal resistance junction-case
max
10
°
C/W
R th j-amb
Thermal resistance junction-ambient
max
100
°
C/W
ELECTRICAL CHARACTERISTICS (Refer to the test circuit, T amb =25 ° C)
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
V ref
Reference voltage
(between pins 1 and 2)
V s =6V
I M = 0.1A
1.1
1.2
1.3
V
I d
Quiescent drain current
V s =6V
I M = 100
m
A
1.7
mA
I MS
Starting current
V s =5V
D
V ref /V ref = -50%
0.8
A
V 1-3
Minimum supply voltage
I m = 0.1 A
D
V ref /V ref = -5%
2.5
V
K=I m /I’ T
Reflection coefficient
V s =6V
I M = 0.1A
18
20
22
D
K
K /D
V s
V s = 6V to 18V I m = 0.1A
0.45
%/V
D
K
K /D
I M
V s =6V
I m = 25 to 400 mA
0.005
%/mA
D
K
K /D
T
V s =6V I m = 0.1A
T amb = -20 to 70
0.02
%/
°
C
°
C
D
V ref
V ref /D
V s Line regulation
V s = 6V to 18V I M = 0.1A
0.02
%/V
D
V ref
V ref /D
I M Load regulation
V s =6V
I m = 25 to 400 mA
0.009
%/mA
D
V ref
V ref /D
T Temperature coefficient
V s =6V I m = 0.1A
T amb = -20 to 70
0.02
%/
°
C
°
C
3/8
112692280.004.png
TDA1151
Figure 1. Quiescent drain
current vs. power supply
Figure 2. Quiescent drain
current vs. ambient tem-
perature
Figure 3. Reference voltage
vs. supply voltage
Figure 4. Reference voltage
vs. motor current
Figure 5. Reference voltage
vs. ambient temperature
Figure 6. Reflection coef-
ficient vs. supply voltage
Figure7. Reflection coef-
ficient vs. motor current
Figure 8. Reflection coef-
ficient vs. ambient tem-
perature
Figure 9. Typical minimum
supply voltage vs. motor
current
4/8
112692280.005.png
TDA1151
Figure 10. Application circuit
V s = +9V
R M = 14.2 W
R T =280 W
R S =1k W
E g = 2.9V
I M = 150 mA
V M =R M
Note: A ceramic capacitor of 10 nF between pins, 1 and 2 improves stability in some applications.
Figure 11. P.C. board and component layout of the circuit of Fig. 10 (1 : 1 scale)
5/8
• I M +E g = 5.03V
112692280.001.png

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