TDA1151 ,MOTOR SPEED REGULATORELECTRICAL CHARACTERISTICS (Refer to the test circuit, Tamb =25 °C)Symbol Parameter Test conditions ..
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TDA1151
MOTOR SPEED REGULATOR
TDA1151MOTOR SPEED REGULATOR
EXCELLENT VERSATILITYIN USE
HIGH OUTPUT CURRENT (UP TO 800mA)
LOW QUIESCENT CURRENT (1.7mA)
LOW REFERENCE VOLT AGE(1.2V)
EXCE LLENT PARAMETERS STABILITY
VERSUS TEMPERATURE
DESCRIPTIONThe TDA1151isa monolithic integrated circuitin
SOT-32 plastic package.Itis intendedfor useas
speed regulator for DC motorsof record players,
tape and cassette recorders, movie cameras, toys
etc.
Symbol Parameter Value Unit Supply voltage 20 V
Ptot Total power dissipationat Tamb =70°C 0.8 W Tcase= 100°C 5W
Tstg,Tj Storage and junction temperature -40to 150 °C
ABSOLUTE MAXIMUM RATINGS
APPLICATION CIRCUIT
SOT-32
ORDERING NUMBER: TDA1151
CONNECTION DIAGRAM
TEST CIRCUIT
TDA1151
Symbol Parameter Testconditions Min. Typ. Max. UnitVref Reference voltage
(between pins1 and2) =6V IM= 0.1A 1.1 1.2 1.3 V Quiescent drain current Vs =6V IM= 100μA 1.7 mA
IMS Starting current Vs =5V ΔVref/Vref= -50% 0.8 A
V1-3 Minimum supplyvoltage Im=0.1A ΔVref/Vref= -5% 2.5 V
K=Im/I’T Reflection coefficient Vs =6V IM= 0.1A 18 20 22K /ΔVs Vs=6Vto 18VIm= 0.1A 0.45 %/VKIM Vs =6V Im=25to 400 mA 0.005 %/mAK /ΔT Vs =6V Im= 0.1A
Tamb=-20to 70°C
0.02 %/°C Vref
Vref /ΔVs Line regulation Vs=6Vto 18VIM= 0.1A 0.02 %/V Vref
Vref /ΔIM Load regulation Vs =6V Im=25to 400 mA 0.009 %/mA Vref
VrefT Temperaturecoefficient Vs =6V Im= 0.1A
Tamb=-20to 70°C
0.02 %/°C
ELECTRICALCHARACTERISTICS (Referto the test circuit, Tamb =25 °C)
Symbol Parameter Value UnitRthj-case Thermal resistance junction-case max 10 °C/W
Rth j-amb Thermal resistance junction-ambient max 100 °C/W
THERMALDATA
TDA1151
Figure 1. Quiescent drain
current vs. power supply
Figure2. Quiescent drain
current vs. ambient tem-
perature
Figure3. Reference voltage
vs. supply voltage
Figure4. Reference voltage
vs. motor current
Figure5. Reference voltage
vs.ambient temperature
Figure 6. Reflection coef-
ficientvs. supply voltage
Figure7. Reflection coef-
ficient vs. motor current
Figure 8. Reflection coef-
ficient vs. ambient tem-
perature
Figure9. Typical minimum
supply voltage vs. motor
current
TDA1151
Figure 10. Application circuit = +9V = 14.2Ω =280Ω =1 kΩ = 2.9V = 150 mA =RM•IM +Eg= 5.03V
Note:A ceramic capacitorof10nF between pins,1 and2 improves stabilityin some applications.
Figure 11. P.C. board and component layoutof the circuitof Fig.10(1:1 scale)
TDA1151
Figure 12. Speed variation
vs. supplyvoltage
Figure 13. Speed variation
vs. motor current
Figure 14. Speed variation
vs. ambient temperature
Figure 16. Speed variation
vs. supplyvoltage
Figure 17. Speed variation
vs. motor current
Figure 18. Speed variation
vs. ambient temperature
Figure 15. Low cost application circuit
TDA1151
