TDA7383 STMicroelectronics, TDA7383 Datasheet
TDA7383
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TDA7383 Summary of contents
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... VERY INDUCTIVE LOADS OVERRATING CHIP TEMPERATURE WITH SOFT THERMAL LIMITER LOAD DUMP VOLTAGE FORTUITOUS OPEN GND REVERSED BATTERY ESD PROTECTION DESCRIPTION The TDA7383 is a new technology class AB Audio Power Amplifier in Flexiwatt 25 package designed for high end car radio applications Vcc1 Vcc2 SVR ...
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... TDA7383 DESCRIPTION (continued) Thanks to the fully complementary PNP/NPN out- put configuration the TDA7383 allows a rail to rail output voltage swing with no need of bootstrap capacitors. The extremely reduced components count allows very compact sets. ABSOLUTE MAXIMUM RATINGS Symbol V Operating Supply Voltage Supply Voltage ...
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... S THD = 1 14V S THD = 10 13.2V S THD = 1 13. 13. 14. "A" Weighted Bw = 20Hz to 20KHz f = 100Hz f = 1KHz St-By = LOW (Amp: ON) (Amp: OFF 1Vrms O (Amp: Play) (Amp: Mute 1.5V MUTE (Source Current) THD = 1% (**) THD = 10% (**) TDA7383 = 25 C; amb Min. Typ. Max. Unit 180 300 mA 200 16 18 ...
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... TDA7383 Figure 1: Standard Test and Application Circuit R1 ST-BY 10K MUTE 47K C10 IN1 0.1 F IN2 C2 0.1 F IN3 C3 0.1 F IN4 C4 0.1 F S-GND 4/ 0.1 F 2200 F Vcc1-2 Vcc3 SVR DIAGNOSTICS TAB D94AU179B OUT1 OUT2 OUT3 OUT4 ...
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... Figure 2: P.C.B. and component layout of the figure 1 (1:1 scale) COMPONENTS & TOP COPPER LAYER BOTTOM COPPER LAYER TDA7383 TDA7383 5/12 ...
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... TDA7383 Figure 3: Quiescent Current vs. Supply Voltage Figure 5: Output Power vs. Supply Voltage Figure 7: Distortion vs. Frequency. THD (%) 10 Vs= 14 Ohm Po 0 100 1000 f (Hz) 6/12 Figure 4: Quiescent Output Voltage vs. Supply Voltage Figure 6: Distortion vs. Output Power THD (%) 10 Vs= 14 Ohm 1 0.1 0 0.1 Figure 8: Supply Frequency SVR (dB) ...
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... Rg (Ohm) APPLICATION HINTS (ref. to the circuit of fig. 1) BIASING AND SVR As shown by fig. 11, all the TDA7383’s main sec- tions, such as INPUTS, OUTPUTS AND AC-GND (pin 16) are internally biased at half Supply Volt- age level (Vs/2), which is derived from the Supply Voltage Rejection (SVR) block. In this way no cur- rent flows through the internal feedback network ...
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... About the stand-by, the time constant to be as- signed in order to obtain a virtually pop-free tran- sition has to be slower than 2.5V/ms. DIAGNOSTICS FACILITY The TDA7383 is equipped with a diagnostics cir- cuitry able to detect the following events: CLIPPING in the output stage OVERHEATING (THERMAL proximity) OUTPUT MISCONNECTIONS (OUT-GND & ...
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... An example of circuit able to distinguish between the two occurrences is shown by fig. 15. STABILITY AND LAYOUT CONSIDERATIONS If properly layouted and hooked to standard car- radio speakers, the TDA7383 will be intrinsically stable with no need of external compensations VREF T1 25 ...
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... TDA7383 such as output R-C cells. Due to the high number of channels involved, this translates into a very remarkable components saving if compared to similar devices on the market. To simplify pc-board layout designs, each ampli- fier stage has its own power ground externally ac- cessible (pins 2,8,18,24) and one supply voltage pin for each couple of them ...
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... TDA7383 OUTLINE AND MECHANICAL DATA Flexiwatt25 FLEX25ME D 11/12 ...
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... TDA7383 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specification mentioned in this publication are subject to change without notice ...