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NTE1112 Datasheet, PDF (1/2 Pages) NTE Electronics – Integrated Circuit Audio Power Amplifier, 4W @ 24V
NTE1112
Integrated Circuit
Audio Power Amplifier, 4W @ 24V
Description:
The NTE1112 is an integrated monolithic circuit in a 14−lead DIP plastic package with external heat−
sink.
Features:
D Output Power 2.2W (18V−16Ω)
D Low Quiescent Output Current
D High Efficiency
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27V
Input Voltage (Note 1), Vi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5V to 27V
Output Peak Current, IO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1A
Power Dissipation (Tamb = 25°C), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.35W
Storage and Junction Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −55 to +150°C
Thermal Resistance Junction−Case, Rth j−case . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17°C/W
Thermal Resistance Junction−Ambient, Rth j−amb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93°C/W
Note 1. For V < 27V, Vimax = Vs
Electrical Characteristics: (Tamb = +25°C unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Total Quiescent Drain Current
Quiescent Drain Current of
Output Transistors
Drain Current
Input Bias Current
Output Power
Internal Feedback Resistance
Id
Vs = 12V
− 5.0 − mA
Vs = 18V
− 6.2 − mA
Id
Vs = 12V
− 2.0 − mA
Vs = 18V
− 2.5 − mA
Id d = 10% RL = 16Ω, PO = 2.2W, VS = 18V − 175 − mA
Ib
Vs = 18V
− 180 − nA
PO d = 3% Vs = 12V, RL = 8Ω
− 1.0 − W
Vs = 18V, RL = 16Ω
− 1.7 − W
Vs = 24V, RL = 50Ω
− 1.25 − W
d = 10% Vs = 12V, RL = 8Ω
1.0 1.4 − W
Vs = 18V, RL = 16Ω
− 2.2 − W
RF
− 15 − kΩ
 ▷