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 = +25C 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 = +25C), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.5W Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -30 to +75C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to +150C Electrical Characteristics: (TA = +25C, VCC = 12.5V, RL = 4, Rg = 600, f = 1kHz unless otherwise specified)
Parameter Quiescent Current Output Power Symbol ICCQ VCC = 18V POUT THD = 10% VCC = 13.2V, THD = 10% VCC = 13.2V, RL = 2, THD = 10% Maximum Output Power Total Harmonic Distortion POM THD VCC = 13.2V, VIN = 100mV POUT = 1W POUT = 100mW POUT = 1W, RL = 2 Voltage Gain Input Resistance Output Noise Voltage GV RIN VNO Rg = 10k, BW = 50Hz to 20kHz Test Conditions Min - - - 5.0 - - - - - 51.5 - - Typ 40 45 5.2 5.8 9.3 9.0 0.2 0.36 0.5 53.0 34 0.9 Max 80 100 - - - - 1.5 1.0 - 54.5 - 2.0 Unit mA mA W W W W % % % dB k mV
Pin Connection Diagram (Front View)
10 Bootstrap 9 Output 8 GND 7 GND 6 Gain Adjust 5 Feedback 4 Input 3 Muting Control 2 Ripple Filter 1 VCC
1.050 (26.67) Max .079 (2.0) .867 (22.0) .128 (3.2) Dia
.276 (7.0)
.433 (11.0) 1 10
.217 (5.5) .100 (2.54) .900 (22.8)
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