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LM2876TF 数据表(PDF) 4 Page - National Semiconductor (TI) |
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LM2876TF 数据表(HTML) 4 Page - National Semiconductor (TI) |
4 / 19 page Electrical Characteristics (Notes 4, 5) (Continued) The following specifications apply for V + = +30V, V− = −30V, I MUTE = −0.5 mA with RL = 8Ω unless otherwise specified. Limits apply for T A = 25˚C. Symbol Parameter Conditions LM2876 Units (Limits) Typical Limit (Note 9) (Note 10) eIN (Note 3) Input Noise IHF — A Weighting Filter 2.0 8 µV (max) R IN = 600Ω (Input Referred) SNR Signal-to-Noise Ratio P O = 1W, A-Weighted, 98 dB Measured at 1 kHz, R S = 25Ω P O = 25W, A-Weighted, 112 dB Measured at 1 kHz, R S = 25Ω Ppk= 75W, A-Weighted, 117 dB Measured at 1 kHz, R S = 25Ω IMD Intermodulation Distortion Test 60 Hz, 7 kHz, 4:1 (SMPTE) 0.004 % 60 Hz, 7 kHz, 1:1 (SMPTE) 0.006 Note 2: DC Electrical Test; refer to Test Circuit #1. Note 3: AC Electrical Test; refer to Test Circuit #2. Note 4: All voltages are measured with respect to the GND pin (pin 7), unless otherwise specified. Note 5: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is functional, but do not guarantee specific performance limits. Electrical Characteristics state DC and AC electrical specifications under particular test conditions which guarantee specific performance limits. This assumes that the device is within the Operating Ratings. Specifications are not guaranteed for parameters where no limit is given, however, the typical value is a good indication of device performance. Note 6: For operating at case temperatures above 25˚C, the device must be derated based on a 150˚C maximum junction temperature and a thermal resistance of θJC = 1.0 ˚C/W (junction to case). Refer to the Thermal Resistance figure in the Application Information section under Thermal Considerations. Note 7: Human body model, 100 pF discharged through a 1.5 k Ω resistor. Note 8: The operating junction temperature maximum is 150˚C, however, the instantaneous Safe Operating Area temperature is 250˚C. Note 9: Typicals are measured at 25˚C and represent the parametric norm. Note 10: Limits are guaranteed to National’s AOQL (Average Outgoing Quality Level). Note 11: The LM2876T package TA11B is a non-isolated package, setting the tab of the device and the heat sink at V− potential when the LM2876 is directly mounted to the heat sink using only thermal compound. If a mica washer is used in addition to thermal compound, θCS (case to sink) is increased, but the heat sink will be isolated from V−. Note 12: The feedback compensation network limits the bandwidth of the closed-loop response and so the slew rate will be reduced due to the high frequency roll-off. Without feedback compensation, the slew rate is typically larger. Note 13: V− must have at least −9V at its pin with reference to ground in order for the under-voltage protection circuitry to be disabled. Note 14: The output dropout voltage is the supply voltage minus the clipping voltage. Refer to the Clipping Voltage vs Supply Voltage graph in the Typical Perfor- mance Characteristics section. Test Circuit #1 (DC Electrical Test Circuit) DS011775-3 www.national.com 4 |
类似零件编号 - LM2876TF |
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类似说明 - LM2876TF |
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