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TCA0372 Fiches technique(PDF) 4 Page - Motorola, Inc

No de pièce TCA0372
Description  Dual Power Operational Amplifier
Download  8 Pages
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Fabricant  MOTOROLA [Motorola, Inc]
Site Internet  http://www.freescale.com
Logo MOTOROLA - Motorola, Inc

TCA0372 Fiches technique(HTML) 4 Page - Motorola, Inc

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TCA0372
4
MOTOROLA ANALOG IC DEVICE DATA
VCC = +15 V
VEE = –15 V
AV = +100
RL = 50 Ω
t, TIME (100
µs/DIV)
Figure 7. Sine Wave Reponse
Figure 8. Bidirectional DC Motor Control with
Microprocessor–Compatible Inputs
VS = Logic Supply Voltage
Must Have VCC > VS
E1, E2 = Logic Inputs
+
+
VCC
E2
E1
VS/2
R7
R1
Vin
R2
5.0
R5
R6
10 k
Rx
R3
0.1
µF
R8
10 k
+
+
VS
0.1
µF
10 k
10 k
10 k
10 k
Figure 9. Bidirectional Speed Control of DC Motors
For circuit stability, ensure that Rx >
where, RM = internal resistance of motor.
The voltage available at the terminals of the motor is:
where, |Ro| =
and IM is the motor current.
2R3
@ R1
RM
VM + 2(V1 –
VS
2
)
) |Ro| @ IM
2R3
@ R1
Rx
THERMAL INFORMATION
The maximum power consumption an integrated circuit
can tolerate at a given operating ambient temperature can be
found from the equation:
PD(TA) =
TJ(max)–TA
R
θJA (typ)
where, PD(TA) = power dissipation allowable at a given
operating ambient temperature.
This must be greater than the sum of the products of the
supply voltages and supply currents at the worst case
operating condition.
TJ(max)
= Maximum operating junction temperature
as listed in the maximum ratings section.
TA
= Maximum desired operating ambient
temperature.
R
θJA(typ) = Typical thermal resistance junction–to–
ambient.


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