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LM4682 Datasheet(PDF) 5 Page - National Semiconductor (TI) |
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LM4682 Datasheet(HTML) 5 Page - National Semiconductor (TI) |
5 / 21 page Absolute Maximum Ratings (Note 2) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage 15.5V Input Voltage −0.3V to V DD +0.3V Power Dissipation (Note 3) Internally Limited ESD Susceptibility (Note 4) 2000V ESD Susceptibility (Note 5) 200V Junction Temperature (Note 6) 150˚C Storage Temperature −65˚C ≤ T A ≤ 150˚C Soldering Information LLP Package Vapor Phase (60 sec.) 215˚C Infrared (15 sec.) 220˚C See AN-450 “Surface Mounting and their Effects on Product Reliability” for other methods of soldering surface mount devices. Operating Ratings (Notes 1, 2) Temperature Range T MIN ≤ T A ≤ T MAX −40˚C ≤ T A ≤ +85˚C Supply Voltage 8.5V ≤ V DD ≤ 15V Thermal Resistance (LLP Package) θ JA 28˚C/W θ JC 20˚C/W Electrical Characteristics (Notes 1, 2, 7) The following specifications apply for V DD = 12V, VOLVDD = 5V, RL =8 Ω, LC filter values as shown in Figure 1, unless other- wise specified. Limits apply for T A = 25˚C. Symbol Parameter Conditions LM4682 Units Typical Max Min V DD Operating Supply Voltage Range 12 15 8.5 V I S Quiescent Power Supply Current, Class D Mode V IN =0VRMS,VHPSEL =0V 52 70 mA Quiescent Power Supply Current, Headphone Mode V IN =0VRMS,VHPSEL = 12V 30 40 mA I SD Quiescent Power Supply Current, Shutdown Mode SDB = 0V 0.1 mA R IN Input Resistance in Both Modes 8 k Ω VOLV DD DC Reference Supply Voltage 5.5 3 V V IH Minimum Logic High Input Voltage SDB, MUTEB pins 0.7xVOLV DD V V IL Maximum Logic Low Input Voltage 0.3xVOLV DD V V HPIH HP Sense High Input Voltage V DD-1 V V HPIL HP Sense Low Input Voltage V DD/2 V Power Amplifiers P OR Output Power, Per Channel THD+N ≤ 1%, f IN = 1kHz 6.0 5.5 W P D1 Power Dissipation P O = 7W/Chan, fIN = 1kHz 2.6 W E FF1 Efficiency P O = 7W/Chan, fIN = 1kHz 84.4 % THD+N Harmonic Distortion + Noise P O = 6W/Chan, fIN = 1kHz 0.2 % V NOISE Output Noise Voltage, RMS. A−Weighted R SOURCE =50 Ω,C IN = 1µF, BW = 8Hz to 22kHz A-weighted, input referred 13 µV PSRR Power Supply Rejection Ratio V RIPPLE = 200mVpp, 1kHz, V IN = 0, input referred f = 50Hz 94 dB f = 60Hz 94 f 100Hz 93 f = 120Hz 93 f = 1kHz 84 Headphone Amplifiers www.national.com 5 |
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