NTE1278 데이터 시트보기 (PDF) - NTE Electronics
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NTE1278 Datasheet PDF : 2 Pages
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NTE1278
Integrated Circuit
Audio Power Amp, 5.8W
Features:
D Few External Parts Required
D Adjustable Closed−Loop Gain
D High Sustaining Over Voltage
D Excellent Ripple Rejection
D High Power and Low Distortion
D Audio Muting Circuit
D Protection Circuit for Load Short, Excessive Supply Voltage, and Thermal Shutdown
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Peak Supply Voltage (200ms), VCCsurge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40V
DC Supply Voltage, VCC(DC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25V
Operating Supply Voltage, VCC(ope) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V
Peak Output Current, IO(Peak) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.5A
Power Dissipation (TC = +25°C), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.5W
Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −30° to +75°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −55° to +150°C
Electrical Characteristics: (TA = +25°C, VCC = 12.5V, RL = 4Ω, Rg = 600Ω, f = 1kHz unless
otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Quiescent Current
ICCQ
VCC = 18V
− 40 80 mA
− 45 100 mA
Output Power
POUT THD = 10%
− 5.2 − W
Maximum Output Power
Total Harmonic Distortion
VCC = 13.2V, THD = 10%
5.0 5.8 − W
VCC = 13.2V, RL = 2Ω, THD = 10% − 9.3 −
W
POM VCC = 13.2V, VIN = 100mV
− 9.0 − W
THD POUT = 1W
− 0.2 1.5 %
Voltage Gain
Input Resistance
Output Noise Voltage
POUT = 100mW
POUT = 1W, RL = 2Ω
GV
RIN
VNO Rg = 10kΩ, BW = 50Hz to 20kHz
− 0.36 1.0 %
− 0.5 − %
51.5 53.0 54.5 dB
− 34 − kΩ
− 0.9 2.0 mV
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