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TDA7570 데이터시트(PDF) 7 Page - STMicroelectronics |
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TDA7570 데이터시트(HTML) 7 Page - STMicroelectronics |
7 / 17 page TDA7570 Electrical specifications 7/17 3 Electrical specifications 3.1 Absolute maximum ratings 3.2 Thermal data 3.3 Electrical characteristics Table 3. Absolute maximum ratings Symbol Parameter Value Unit ±Vs Operating supply voltage ±30 V Ptot Power dissipation Tcase = 85°C 21 W Tj Junction temperature, operating range -40 to 150 °C Tstg Storage temperature, operating range -55 to 150 °C Table 4. Thermal data Symbol Parameter Value Unit Rth j-case Thermal resistance junction to case 3 °C/W Table 5. Electrical characteristics (VS = ±25V, RL = 4Ω, f = 100Hz, Tj = 25°C, Gain = 28dB, application circuit shown in Figure 3, 2x65/1x130W system, unless otherwise specified.) Symbol Parameter Test condition Min. Typ. Max. Unit ±VS Operating supply voltage ±12 ±30 V Iq Quiescent supply current Vst-by = 5V, Fswitching = 352.8kHz from +VS from +VS -low from -VS 20 5.4 20 25 7 25 35 9 35 mA mA mA Ist-by Quiescent supply current Vst-by = 0 from +VS 0.35 0.5 0.65 mA Vst-by = 0 from -VS -0.2 -0.3 -0.4 mA Vos Output offset voltage Output-GND (single-ended) 350 mV Output L - Output R (bridge) 120 mV Po Output Power Single-ended, @ THD = 1% 2 x 70W system 70 W Bridge, @ THD = 1% 1 x 250W system 250 W Pd Power dissipation of the TDA7570 Quiescent condition 1.5 1.75 W |
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