ST TDA1151 User Manual

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EXCELLENTVERSATILITYIN USE
HIGHOUTPUTCURRENT (UP TO 800mA)
LOW QUIESCENT CURRENT (1.7mA)
LOW REFERENCE VOLTAGE(1.2V)
EXCELLENT PARAMETERS STABIL ITY

VERSUSTEMPERATURE

DESCRIPTION

The TDA1151 is a monolithic integratedcircuit in
SOT-32 plastic package. It is intended for use as
speed regulator for DC motors of record players,
tape and cassetterecorders, moviecameras, toys
etc.

TDA1151

MOTOR SPEED REGULATOR

SOT-32

ORDERING NUMBER : TDA1151

ABSOLUTEMAXIMUM RATINGS

Symbol Parameter Value Unit

V

s

P

tot

T

stg,Tj

Supply voltage 20 V
Totalpower dissipation at T

at T

Storage and junction temperature -40 to 150

amb

case

=70°C
= 100°C

0.8 W
5W

APPLICATION CIRCUIT

°C

March 1993

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TDA1151

CONNECTION DIAGRAM

TESTCIRCUIT

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TDA1151

THERMALDATA

Symbol Parameter Value Unit

R

th j-case

R

th j-amb

ELECTRICALCHARACTERISTICS (Refer to the test circuit, T

Thermal resistance junction-case max 10
Thermal resistance junction-ambient max 100 °

=25°C)

amb

Symbol Parameter Testconditions Min. Typ. Max. Unit

V

ref

Reference voltage

Vs=6V IM= 0.1A 1.1 1.2 1.3 V

(between pins 1 and 2)

I

d

I

MS

V
K=I
∆ K

K

∆ K

K

∆ K

K

∆ V

V

1-3

m

ref

ref

Quiescent drain current
Starting current
Minimum supplyvoltage

/I’

/∆V

/∆I

Reflection coefficient Vs=6V IM= 0.1A 18 20 22

T

s

M

/∆T

/∆V

s Line regulation V

=6V IM= 100 µA

V

s

=5V ∆V

V

s

= 0.1 A ∆V

I

m

ref/Vref

ref/Vref

= -50%

= -5%

0.8 A

Vs= 6V to 18V Im= 0.1A 0.45 %/V

Vs=6V Im= 25 to 400 mA 0.005 %/mA

V

=6V Im= 0.1A

s

T

= -20 to 70°C

amb

= 6V to 18V IM= 0.1A 0.02 %/V

s

1.7 mA

2.5 V

0.02 %/°C

°C/W

C/W

∆ V

V

∆ V

V

ref

/∆I

M Load regulation V

ref

ref

/∆T

ref

Temperaturecoefficient

=6V Im= 25 to 400 mA 0.009 %/mA

s

=6V Im= 0.1A

V

s

T

= -20 to 70°C

amb

0.02

%/°C

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TDA1151

Figure 1. Quies cent drain
current vs. power supply

Figure 4. Reference voltage
vs. motor current

Figure 2. Quiescent drain
current vs. ambient tem­perature

Figure 5. Reference voltage
vs.ambient temperature

Figure 3. Reference voltage
vs. supply voltage

Figure 6. Reflection coef­ficientvs. supplyvoltage

Figure7. Reflec tion coef­ficient vs. motor current

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Figure 8. Reflection coef­ficient vs. ambient tem­perature

Figure 9. Typical minimum
supply voltage vs. motor
current

Figure 10. Application circuit

=+9V

V

s

= 14.2Ω

R

M

=280Ω

R

T

=1kΩ

R

S

= 2.9V

E

g

= 150 mA

I

M

=RM•IM+Eg=5.03V

V

M

Note: Aceramic capacitor of 10 nF between pins, 1 and 2 improves stability in some applications.

TDA1151

Figure11. P.C.board and componentlayout of the circuit of Fig. 10 (1 : 1 scale)

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TDA1151

Figure 12. Speed variation
vs. supplyvoltage

Figure 13. Speed variation
vs. motor current

Figure 15. Low cost application circuit

Figure 14. Speed variation
vs.ambient temperature

Figure 16. Speed variation
vs. supplyvoltage

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Figure 17. Speed variation
vs. motor current

Figure 18. Speed variation
vs.ambient temperature

SOT-32PACKAGE MECHANICALDATA

TDA1151

DIM.

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

mm inch

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TDA1151

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 infringementof patents or other rights of third parties whichmay result from its use. No
licenseis 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 useas critical components inlife support devices or systemswithout express
written approval of SGS-THOMSON Microelectronics.

 1994 SGS-THOMSONMicroelectronics -All Rights Reserved

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