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NTE1844 Просмотр технического описания (PDF) - NTE Electronics

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NTE1844 Datasheet PDF : 3 Pages
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NTE1844
Integrated Circuit
Motor Speed Regulator
Description:
The NTE1844 is a monolithic integrated circuit intended for speed regulation of DC motors in record
players, tape, and cassette recorders, conveniently packaged in a 4–Lead SIP type plastic package.
Features:
D High Output/Low Quiescent Currents
D Low Reference Voltage
D Excellent Stability versus Temperature, Parameters
D Excellent Characteristics even at Low Supply Voltages
Absolute Maximum Ratings: (TA = +25°C)
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V
Circuit Current (t 5sec), IO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2A
Package Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2W
Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +75°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +150°C
Recommended Operating Condition:
Supply Voltage Range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5V to 16V
Electrical Characteristics: (TA = +25°C, VCC = 12V, Pulse Test PW 10ms, Duty Cycle 2%
unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Reference Voltage
Quiescent Current
Reflection Coefficient
Saturation Voltage
Vref
Id
k
V4(sat)
k
k
/VCC
I4 = 10mA
RM = 180
RM1 = 44, RM2 = 33
VCC = 4.2V, RM = 4.4
I4 = 100mA, VCC = 6.3V to 16V
1.10 1.27 1.40 V
0.5 0.8 1.2 mA
18 20 22
– 1.5 2.0 V
– 0.4 – %/V

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