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TS4974 Datasheet(PDF) 17 Page - STMicroelectronics |
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TS4974 Datasheet(HTML) 17 Page - STMicroelectronics |
17 / 25 page TS4974 Application information 17/25 4.3 Power dissipation and efficiency Assumptions: ● Load voltage and current are sinusoidal (Vout and Iout) ● Supply voltage is a pure DC source (VCC) The output voltage is: and and Therefore, the average current delivered by the supply voltage is: Equation 1 The power delivered by the supply voltage is: Psupply = VCC ICC AVG (W) Therefore, the power dissipated by each amplifier is: Pdiss = Psupply - Pout (W) Equation 2 V out = Vpeak sinωt (V) I out = V out R L ------------- (A) P out = V peak 2 2R L --------------------- (W) I CC AVG = 2 V peak πR L ----------------- (A) P diss 22V CC π R L ---------------------- P out Pout – = |
Similar Part No. - TS4974_07 |
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Similar Description - TS4974_07 |
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