NTE862 Integrated Circuit Audio Power Amplifier, 5W Description: The NTE862 is a power audio amplifier in a 14−Lead DIP type package designed for use in consumer applications. In order to hold system cost to a minimum, the gain is internally fixed at 34dB. A unique input stage allows the inputs to be ground referenced. The output is automatically self centering to one half the supply voltage. Uses include simple phonograph amplifiers, intercoms, line drivers, teaching machine outputs, alarms, ultrasonic drivers, TV sound systems, AM−FM radio, sound projector systems, etc. Features: D Wide Supply Voltage Range D Low Quiescent Power Drain D Voltage Gain Fixed at 50 D High Peak Current Capability D Input Referenced to GND D High Input Impedance D Low Distortion D Quiescent Output Voltage is at One Half of the Supply Voltage Absolute Maximum Ratings: Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28V Peak Current, ICpeak . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.3A Power Dissipation (Note 1), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.67W Input Voltage, Vin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±0.5V Maximum Junction Temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150°C Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0° to +70°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65° to +150°C Lead Temperature (During Soldering, 10 sec.), TL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +260°C Electrical Characteristics: (Note 2) Parameter Input Resistance Bias Current Symbol Test Conditions ZIN IBIAS Inputs Floating Min Typ Max Unit − 150 − kΩ − 100 − nA Note 1. The package is to be derated at 15°C/W junction to heat sink pins. Note 2. V+ = 22V and TA = +25°C operating with a Staver V7 heat sink for 30 seconds. Electrical Characteristics (Cont’d): (Note 2) Parameter Symbol Gain Test Conditions AV Output Power POUT THD = 10%, RL = 8Ω Min Typ Max Unit 40 50 60 V/V 5 5.5 − W Quiescent Supply Current IQ − 8.5 25 mA Quiescent Output Voltage VOUTQ − 11 − V − 450 − kHz Bandwidth BW Supply Voltage V+ 12 − 26 V Short Circuit Current (Note 3) ISC − 1.3 − A PSRRRTO − 31 − dB − 0.25 1.0 % Power Supply Rejection Ratio (Note 4) Total Harmonic Distortion THD POUT = 2W, RL = 8Ω POUT = 4W, RL = 8Ω Note 2. V+ = 22V and TA = +25°C operating with a Staver V7 heat sink for 30 seconds. Note 3. Output is fully protected against a shorted speaker condition at all voltages up to 22V. Note 4. Rejection ratio referred to the output with CBYPASS = 5µF, freq = 120Hz. Pin Connection Diagram Bypass 1 14 VS Non−Inverting Input 2 * GND 3 13 N.C. 12 GND * * GND 4 11 GND * * GND 5 10 GND * Inverting Input 6 9 N.C. GND 7 8 Vout *NOTE: Heat Sink Pins 14 8 .280 (7.1) Max 1 7 .770 (19.5) Max .300 (7.62) .160 (4.0) Max .100 (2.45) .600 (15.24)