NTE804 Integrated Circuit Dual Audio Power Amp, 2W Description: The NTE804 is a monolithic dual power amplifier which offers high quality performance for stereo phographs, tape players, recorders and AM−FM stereo receivers, etc. The NTE804 will deliver 2W/channel into 8 or 16Ω loads. The amplifier is designed to operate with a minimum of external components and contains an internal bias regulator to bias each amplifier. Device overload protection consists of both internal current limit and thermal shutdown. Features: D AVO = 90dB Typ D 2W Per Channel D 70dB Ripple Rejection D 75dB Channel Separation D Internal Stabilization D D D D D Self Centering Biasing 3MΩ Input Impedance 10−26V Operation Internal Current Limiting Internal Thermal Protection Applications: D Multi−Channel Audio System D Tape Recorders and Players D Movie Projectors D Automotive System D Stereo Phonographs D D D D D Bridge Output Stages AM−FM Radio Receivers Intercoms Stereo Amplifiers Instrument Systems Absolute Maximum Ratings: Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26V Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0V−Vsupply Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0° to +70°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65° to +150°C Junction Temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150°C Lead Temperature (During Soldering, 10sec max), TL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +300°C Electrical Characteristics: (VS = 20V, TTAB = +25°C, RL = 8Ω, AV = 50 (34dB) unless otherwise specified) Parameter Min Typ Max Unit POUT = 0W − 15 50 mA POUT = 1.5W/Ch − 430 500 mA DC Output Level − 10 − V Supply Voltage 10 − 26 V Total Supply Current Test Conditions Output Power THD = < 5% 2 2.5 − W Total Harmonic Distortion POUT = 0.05W/Ch, f = 1kHz − 0.25 − % POUT = 1W/Ch, f = 1kHz − 0.07 1 % POUT = 2W/Ch, f = 1kHz − 0.10 − % Offset Voltage − 15 − mV Input Bias Current − 100 − nA Input Impedance 3 − − MΩ 66 90 − dB − VS−6 − Vp−p Open Loop Gain RS = 0Ω Output Swing Channel Separation CF = 250µF, f = 1kHz 50 70 − dB Ripple Rejection f = 120Hz, CF = 250µF 60 70 − dB Current Limit − 1.5 − A Slew Rate − 1.4 − V/µs − 3 − µVrms Equivalent Input Noise Voltage RS = 600Ω, 100Hz − 10kHz Note 1 For operating at ambient temperatures greater than +25°C, the NTE804 must be derated based on a maximum +150°C junction temperature using a thermal resistance which depends upon device mounting techniques. Note 2 Dissipation characteristics are shown for four mounting configurations. a. Infinite sink −13.4°C/W b. PC board +V7 sink −21°C/WQ. PC board is 2 1/2 square inches. Staver V7 sink is 0.02 inch thick copper and has a radiating surface area of 10 square inches. c. PC board only −29°C/W. Device soldered to 2 1/2 square inch PC board. d. Free air −58°C/W. Pin Connection Diagram Bias 1 14 VCC Output 1 2 13 Output 2 *GND 3 12 GND* *GND 4 11 GND* *GND 5 10 GND* Input 1 6 9 Input 2 Feedback 1 7 8 Feedback 2 * NOTE: These leads are internally connected. 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)