TCA0372 Datasheet, PDF (4/8 Pages) Motorola, Inc – Dual Power Operational Amplifier

Figure 7. Sine Wave Reponse
TCA0372
VCC = +15 V
VEE = –15 V
AV = +100
RL = 50 Ω
Figure 8. Bidirectional DC Motor Control with
Microprocessor–Compatible Inputs
VCC
E1
+
+
E2
VS/2
–
–
t, TIME (100
µs/DIV)
VS = Logic Supply Voltage
Must Have VCC > VS
E1, E2 = Logic Inputs
Figure 9. Bidirectional Speed Control of DC Motors
Rx
Vin
R1
+
10 k
–
R3
5.0 Ω
R2
10 k
0.1 µF
VS
0.1 µF
+
–
R6
10 k
R5
10 k
R7 10 k
R8 10 k
@ _{For circuit stability, ensure that Rx >}
2R3 R1
RM
where, RM
+ ) @ The voltage available at the terminals of the motor is: VM
=
internal resistance of motor.
2 (V1 – ^V2S) |Ro| IM
@ _{where, |Ro| =}
2R3
Rx
R1
and IM is the motor current.
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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MOTOROLA ANALOG IC DEVICE DATA