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TPA721DRG4 Arkusz danych(PDF) 3 Page - Texas Instruments |
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TPA721DRG4 Arkusz danych(HTML) 3 Page - Texas Instruments |
3 / 24 page www.ti.com DISSIPATION RATING TABLE RECOMMENDED OPERATING CONDITIONS ELECTRICAL CHARACTERISTICS OPERATING CHARACTERISTICS ELECTRICAL CHARACTERISTICS TPA721 SLOS231E – NOVEMBER 1998 – REVISED JUNE 2004 PACKAGE TA ≤ 25°C DERATING FACTOR TA = 70°C TA = 85°C D 725 mW 5.8 mW/ °C 464 mW 377 mW DGN 2.14 W(1) 17.1 mW/ °C 1.37 W 1.11 W (1) See the Texas Instruments document, PowerPAD Thermally Enhanced Package Application Report (SLMA002), for more information on the PowerPAD package. The thermal data was measured on a PCB layout based on the information in the section entitled Texas Instruments Recommended Board for PowerPAD on page 33 of that document. MIN MAX UNIT VDD Supply voltage 2.5 5.5 V VIH High-level voltage, (SHUTDOWN) 0.9 VDD V VIL Low-level voltage, (SHUTDOWN) 0.1 VDD V TA Operating free-air temperature –40 85 °C at specified free-air temperature, V DD = 3.3 V, TA = 25°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VOO Output offset voltage (measured differentially) SHUTDOWN = 0 V, RL = 8 Ω, RF = 10 kΩ 20 mV PSRR Power supply rejection ratio VDD = 3.2 V to 3.4 V 85 dB IDD Supply current SHUTDOWN = 0 V, RF = 10 k Ω 1.25 2.5 mA IDD(SD) Supply current, shutdown mode (see Figure 4) SHUTDOWN = VDD, RF = 10 kΩ 7 50 µA |IIH| SHUTDOWN, VDD = 3.3 V, Vi = 3.3 V 1 µA |IIL| SHUTDOWN, VDD = 3.3 V, Vi = 0 V 1 µA V DD = 3.3 V, TA = 25°C, RL = 8 Ω PARAMETER TEST CONDITIONS MIN TYP MAX UNIT PO Output power (1) THD = 0.5%, See Figure 9 250 mW THD + N Total harmonic distortion plus noise PO = 250 mW, f = 200 Hz to 4 kHz, See Figure 7 0.55% BOM Maximum output power bandwidth Gain = 2, THD = 2%, See Figure 7 20 kHz B1 Unity-gain bandwidth Open loop, See Figure 15 1.4 MHz kSVR Supply ripple rejection ratio f = 1 kHz, CB = 1 µF, See Figure 2 79 dB Vn Noise output voltage Gain = 1, CB = 0.1 µF, See Figure 19 17 µV(rms) (1) Output power is measured at the output terminals of the device at f = 1 kHz. at specified free-air temperature, V DD = 5 V, TA = 25°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VOO Output offset voltage (measured differentially) SHUTDOWN = 0 V, RL = 8 Ω, RF = 10 kΩ 20 mV PSRR Power supply rejection ratio VDD = 4.9 V to 5.1 V 78 dB IDD Supply current SHUTDOWN = 0 V, RF = 10 k Ω 1.25 2.5 mA IDD(SD) Supply current, shutdown mode (see Figure 4) SHUTDOWN = VDD, RF = 10 kΩ 50 100 µA |IIH| SHUTDOWN, VDD = 5.5 V, Vi = VDD 1 µA |IIL| SHUTDOWN, VDD = 5.5 V, Vi = 0 V 1 µA 3 |
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