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| NTE1232 Integrated Circuit Audio Amplifier for Car Radio, 8W Description: The NTE1232 is a Class B audio amplifier in a 5-Lead TO220 type package designed for driving low impedance loads (down to 1.6). This device provides a high output current capability (up to 3.5A), very low harmonic and cross-over distortion. Features: D Low Number of External Components D No Electrical Insulation Requirement D Space and Cost Saving D High Reliability D Flexibility in Use D Complete Safety During Operation due to Protection Against: Short Circuit Thermal Over Range Fortuitous Open Ground Polarity Inversion (Vs = 12V Max) Load Dump Voltage Surge Absolute Maximum Ratings; Peak Supply Voltage (50ms), Vs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40V DC Supply Voltage, Vs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28V Operating Supply Voltage, Vs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V Output Peak Current, Io Repetitive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5A Non-Repetitive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.5A Power Dissipation (TC = +90C), Ptot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15W Operating Junction Temperature Range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40 to +150C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40 to +150C Thermal Resistance, Junction-to-Case, RthJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4C/W max Electrical Characteristics: (VS = 14.4V, TA = +25C unless otherwise specified) Parameter DC Characteristics Supply Voltage Quiescent Output Voltage (Pin4) Quiescent Drain Current (Pin5) AC Characteristics (GV = 40dB) Output Power Po d = 10%, f = 1kHz RL = 4 RL = 2 Vs = 16V, d = 10%, f = 1kHz RL = 4 RL = 2 Input Saturation Voltage Input Sensitivity Vi(rms) Vi f = 1kHz, Po = 0.5W RL = 4 RL = 2 f = 1kHz, Po = 5.2W, RL = 4 f = 1kHz, Po = 8W, RL = 2 Frequency Response (-3dB) Distortion Input Resistance (Pin1) Voltage Gain (Open Loop) Voltage Gain (Closed Loop) Input Noise Voltage Input Noise Current Efficiency Supply Voltage Rejection B d Ri GV GV eN iN SVR RL = 4, Po = 1W f = 1kHz, Po = 0.05 to 3.5W, RL = 4 f = 1kHz, Po = 0.05 to 5W, RL = 2 f = 1kHz f = 1kHz, RL = 4 f = 1kHz, RL = 4 Note 1 Note 1 Po = 5.2W, RL = 4 Po = 8W, RL = 2 RL = 4, Rg = 10k, fripple = 100Hz f = 1kHz 4.8 7.0 - - 600 - - - - - - 70 - - - - - 30 5.2 8.0 6.5 10 - 15 11 55 50 0.2 0.2 150 80 4 60 68 58 35 - - - - - - - - - - - - - - - - - - W W W W mV mV mV mV mV Hz % % k dB dB V pA % % dB Vs Vo Id 8 6.4 - - 7.2 45 18 8.0 80 V V mA Symbol Test Conditions Min Typ Max Unit 40 to 15,000 39.5 40.0 40.5 Note 1. Filter with noise bandwidth: 22Hz to 22kHz. Pin Connection Diagram Non-Invert Input Invert Input VCC Output GND .408 (10.37 Max .114 (2.9) 0.45 (1.37) Max .619 (15.72) Max .896 (22.76) Max .364 (9.25) Max .850 (21.6) Max .135 (3.45) 1 2 3 4 5 .150 (3.81) .182 (4.62) .182 (4.62) Max |
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