20W HI-FI AUDIO POWER AMPLIFIER

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TDA2040 SCHEMATIC DIAGRAM PIN CONNECTION THERMAL DATA Symbol Parameter Value Unit R th j-case Thermal Resistance Junction-case Max. 3 °C/W 2/13
TDA2040 ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit Vs Supply Voltage ± 20 V V i Input Voltage V s V i Differential Input Voltage ± 15 V Io Output Peak Current (internally limited) 4 A P tot Power Dissipation at T case =75°C 25 W T stg ,T j Storage and Junction Temperature – 40 to + 150 °C ELECTRICAL CHARACTERISTICS (refer to the test circuit, VS = ± 16V, Tamb =25 o C unless otherwise specified) Symbol Parameter Test Conditions Min. Typ. Max. Unit Vs Supply Voltage ± 2.5 ± 20 V I d Quiescent Drain Current V s = ± 4.5V Vs = ± 20V 45 Ib Input Bias Current Vs = ± 20V 0.3 1 µA Vos Input Offset Voltage Vs = ± 20V ± 2 ± 20 mV I os Input Offset Current ± 200 nA P o Output Power d = 0.5%, T case =60°C f = 1kHz R L =4Ω R L =8Ω f = 15kHz RL =4Ω BW Power Bandwidth Po = 1W, RL =4Ω 100 kHz G v Open Loop Voltage Gain f = 1kHz 80 dB G v Closed Loop Voltage Gain f = 1kHz 29.5 30 30.5 dB d Total Harmonic Distortion P o = 0.1 to 10W, R L =4Ω f = 40 to 15000Hz f = 1kHz eN Input Noise Voltage B = Curve A B = 22Hz to 22kHz iN Input Noise Current B = Curve A B = 22Hz to 22kHz 20 15 22 12 18 0.08 0.03 30 100 2 3 10 50 80 200 Ri Input Resistance (pin 1) 0.5 5 MΩ SVR Supply Voltage Rejection R L =4Ω,R g = 22kΩ, G v = 30dB 40 50 dB f = 100Hz, Vripple = 0.5VRMS η Efficiency f = 1kHz % Po = 12W RL =8Ω 66 Po= 22W RL =4Ω 63 T j Thermal Shut-down Junction Temperature 145 °C mA mA W % µV µV pA 3/13
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Page 5 and 6: TDA2040 Figure 7 : Quiescent Drain
Page 7 and 8: TDA2040 Figure 12 : Amplifier with
Page 9 and 10: TDA2040 Figure 16 : Two Way Hi-Fi S
Page 11 and 12: TDA2040 The impedanceat the pin (-)
Page 13: TDA2040 Information furnished is be

20W HI-FI AUDIO POWER AMPLIFIER

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