NTE1844 Datasheet, PDF (1/3 Pages) NTE Electronics – Integrated Circuit Motor Speed Regulator

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: (T_A = +25°C)
Supply Voltage, V_CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V
Circuit Current (t ≤ 5sec), I_O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2A
Package Dissipation, P_D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2W
Operating Temperature Range, T_opr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +75°C
Storage Temperature Range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +150°C
Recommended Operating Condition:
Supply Voltage Range, V_CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5V to 16V
Electrical Characteristics: (T_A = +25°C, V_CC = 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
V_ref
I_d
k
V_4(sat)
∆k
k
/∆V_CC
I₄ = 10mA
R_M = 180Ω
R_M1 = 44Ω, R_M2 = 33Ω
V_CC = 4.2V, R_M = 4.4Ω
I₄ = 100mA, V_CC = 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