TDA1151
MOTOR SPEED REGULATOR
EXCELLENT VERSATILITY IN USE
HIGH OUTPUT CURRENT (UP TO 800mA)
LOW QUIESCENT CURRENT (1.7mA)
LOW REFERENCE VOLTAGE (1.2V)
EXCE LL EN T PARA METERS STABI LIT Y
VERSUS TEMPERATURE
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.
March 1993
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
ABSOLUTE MAXIMUM RATINGS
APPLICATION CIRCUIT
SOT-32
ORDERING NUMBER : TDA1151
1/8
2/8
CONNECTION DIAGRAM
TEST CIRCUIT
TDA1151
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
A
1.7
mA
I
MS
Starting current
V
s
= 5V
V
ref
/V
ref
= -50%
0.8
A
V
1-3
Minimum supply voltage
I
m
= 0.1 A
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
K
K
/
V
s
V
s
= 6V to 18V I
m
= 0.1A
0.45
%/V
K
K
/
I
M
V
s
= 6V
I
m
= 25 to 400 mA
0.005
%/mA
K
K
/
T
V
s
= 6V
I
m
= 0.1A
T
amb
= -20 to 70
C
0.02
%/
C
V
ref
V
ref
/
V
s
Line regulation
V
s
= 6V to 18V I
M
= 0.1A
0.02
%/V
V
ref
V
ref
/
I
M
Load regulation
V
s
= 6V
I
m
= 25 to 400 mA
0.009
%/mA
V
ref
V
ref
/
T
Temperature coefficient
V
s
= 6V
I
m
= 0.1A
T
amb
= -20 to 70
C
0.02
%/
C
ELECTRICAL CHARACTERISTICS (Refer to the test circuit, T
amb
= 25
C)
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
THERMAL DATA
3/8
TDA1151
4/8
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. ambi ent tem-
perature
Figure 9. Typical minimum
supply voltage vs. motor
current
TDA1151
Figure 10. Application circuit
V
s
= +9V
R
M
= 14.2
R
T
= 280
R
S
= 1 k
E
g
= 2.9V
I
M
= 150 mA
V
M
= R
M
I
M
+ E
g
= 5.03V
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
TDA1151
6/8
Figure 12. Speed variation
vs. supply voltage
Figure 13. Speed variation
vs. motor current
Figure 14. Speed variation
vs. ambient temperature
Figure 16. Speed variation
vs. supply voltage
Figure 17. Speed variation
vs. motor current
Figure 18. Speed variation
vs. ambient temperature
Figure 15. Low cost application circuit
TDA1151
DIM.
mm
inch
MIN.
TYP.
MAX.
MIN.
TYP.
MAX.
A
7.4
7.8
0.291
0.307
B
10.5
10.8
0.413
0.425
b
0.7
0.9
0.028
0.035
b1
0.49
0.75
0.019
0.030
C
2.4
2.7
0.094
0.106
c1
1.2
0.047
D
15.7
0.618
e
2.2
0.087
e3
4.4
0.173
F
3.8
0.150
G
3
3.2
0.118
0.126
H
2.54
0.100
SOT-32 PACKAGE MECHANICAL DATA
7/8
TDA1151
8/8
Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility for the
consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No
license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications mentioned
in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied.
SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without express
written approval of SGS-THOMSON Microelectronics.
1994 SGS-THOMSON Microelectronics - All Rights Reserved
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TDA1151
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