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TDA7490L Fiches technique(PDF) 5 Page - STMicroelectronics |
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TDA7490L Fiches technique(HTML) 5 Page - STMicroelectronics |
5 / 11 page 5/11 TDA7490L *: Po = measured across the load using the following inductor: COIL58120 MPPA 2 (magnectics) TURNS= 20 ∅ 1 mm (1) L = 15µH, C = 470nF (3) ∆Gv is intended with R2, R17, R5, R9 1% precision (4) Fsw = 0.25 · (1/(300ns + R13 · (C17 + 76pF) . 0.85) (5) VRMAX = (+Vcc) - (-Vcc) when VR ≥VRMAX the device goes in Stand-By mode Table 5. Electrical Characteristics (Refer to the test circuit, VCC = ±19V; RL = 8 Ω; Demod. filter L = 30µH, C = 220nF; f = 1KHz; fsw = 200kHz; Tamb = 25°C unless otherwise specified.) Symbol Parameter Test Condition Min. Typ. Max. Unit VS Supply Range ±10 ±25 V Iq Total Quiescent Current RL = ∞ no LC filter 70 120 mA VOS Output Offset Voltage -150 +150 mV Po Output Power THD = 10% THD= 1% 20 16 W W Po(BTL) Output Power in Bridge Configuration VS = ±20V; RL = 16 Ω THD = 10% THD=1% 40 32 W W VS =±15.5V; RL = 8 Ω THD = 10% THD=1% 40 32 W W Po (1) Output Power RL = 4 Ω Vcc=±13.5V THD = 10% THD=1% 18 14.5 W W PD Maximum Dissipated Power VCC = ±19V; RL = 8 Ω P ο = 20W + 20W; THD = 10% 5.6 W η Efficiency (') Po = 20W + 20W 86 % THD Total Harmonic Distortion RL = 8 Ω; Po = 1 W 0.1 % Imax Overcurrent Protection Threshold RL = 0 5 A Tj Thermal Shut-down Junction Temperature 150 °C Gv Closed Loop Gain 29 30 31 dB ∆Gv (3) Gain Matching -1 +1 dB eN Total Input Noise RG = 50 Ω A Curve f = 20Hz to 22KHz 7 12 µV µV CT Cross talk f = 1 KHz, Po = 1W 55 dB Ri Input Resistance 20 30 k Ω SVR Supply Voltage Rejection f = 100Hz; Vr = 0.5 60 dB Vrmax Overvoltage Threshold (5) 55 60 V Tr, Tt Rising and Falling Time 50 70 ns RDSON Power Transistor on Resistance 0.4 0.8 Ω Fsw (4) Switching Frequency Range 100 200 230 KHz MUTE & STAND-BY FUNCTIONS VST-BY Stand-by range 0 0 7 V VMUTE Mute Range 1.7 2.5 V VPLAY Play Range 4 5 V AMUTE Mute Attenuation 55 60 dB IqST-BY Quiescent Current @ Stand-by 3 5 mA |
Numéro de pièce similaire - TDA7490L |
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Description similaire - TDA7490L |
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