TDA7350A STMicroelectronics, TDA7350A Datasheet
TDA7350A
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TDA7350A Summary of contents
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... LOAD DUMP VOLTAGE ■ FORTUITOUS OPEN GROUND ■ ESD ■ 2 Description The TDA7350A is a new technology class AB Au- Figure 2. Application Circuit (Bridge) February 2005 TDA7350A Figure 1. Package Multiwatt11 Table 1. Order Codes Part Number TDA7350A dio Power Amplifier in the Multiwatt® package de- signed for car radio applications ...
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... TDA7350A Figure 3. Pin connection (Top view) Table 2. Absolute Maximum Ratings Symbol V Operating Supply Voltage Supply Voltage S V Peak Supply Voltage (t = 50ms Output Peak Current (non rep 100µ Output Peak Current (rep. freq. > 10Hz Power Dissipation at T tot Storage and Junction Temperature ...
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... R = 10KΩ(*) 50Ω(**) 10KΩ(**) 10 4Ω 10 3.2Ω 10 13. 4Ω 3.2Ω 0.1 to 10W 10kΩ 100Hz 22µ 100µ 50Ω(*) 10KΩ(*) 50Ω(**) 10KΩ(**) g TDA7350A Min. Typ. Max. Unit 6 6.5 W 5 KΩ 1.5 7 µV 2 µV 2 µV 2.7 µ ...
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... TDA7350A Figure 4. STEREO Test and Appication Circuit Figure 5. P.C. Board and Layout (STEREO) of the circuit of fig. 4 4/23 ...
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... Figure 6. BRIDGE Test and Appication Circuit Figure 7. P.C. Board and Layout (BRIDGE) of the circuit of fig. 6 TDA7350A 5/23 ...
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... TDA7350A Table 5. Recommended Values of the External Components (ref. to the Stereo Test and Application Circuit) Recommended Component Value C1 0.22µF C2 0.22µF C3 100µF C4 22µF C5 220µF (min) C6 100nF (min) C7 2200µF Figure 8. Output Power vs. Supply Voltage (Stereo) Figure 9. Output Power vs. Supply Voltage ...
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... Figure 12. Output Power vs. Supply Voltage (Bridge) Figure 13. Drain Current vs Supply Voltage (Stereo) Figure 14. Distortion vs Output Power (Stereo) Figure 15. Distortion vs Output Power (Stereo) Figure 16. Distortion vs Output Power (Stereo) Figure 17. Distortion vs Output Power (Bridge) TDA7350A 7/23 ...
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... TDA7350A Figure 18. SVR vs. Frequency & C (Stereo) Figure 19. SVR vs. Frequency & C (Stereo) Figure 20. SVR vs. Frequency & C (Bridge) 8/23 Figure 21. SVR vs. Frequency & C SVR (Bridge) Figure 22. Crosstalk vs. Frequency ; SVR (Stereo) Figure 23. Power Dissipation & Efficiency vs. ; SVR Output Power (Stereo) ; SVR ...
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... Figure 26. Power Dissipation & Efficiency vs. Output Power (Bridge)) 3 Amplifier Organization The TDA7350A has been developed taking care of the key concepts of the modern power audio am- plifier for car radio such as: space and costs sav- ing due to the minimized external count, excellent electrical performances, flexibility in use, superior reliability thanks to a built-in array of protections ...
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... TDA7350A 4.3 Delayed Turn-on (muting) The CSVR sets a signal turn-on delay too. A circuit is included which mutes the device until the voltage on SVR pin reaches ~2.5V typ (fig. 28). The mute function is obtained by duplicating the input differential pair (fig. 29): it can be switched to the signal source internal mute input. This feature is necessary to prevent transients at the inputs reaching the loudspeaker(s) immediately after power-on) ...
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... Figure 28. Turn-on Delay Circuit Figure 29. Mute Function Diagram TDA7350A 11/23 ...
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... TDA7350A Figure 30. Block Diagram; Bridge Configuration Figure 31. ICV - PNP Gain vs. I Figure 32. ICV - PNP V CE(sat) 12/23 Figure 33. ICV - PNP cut-off frequency vs vs 4.7 OUTPUT STAGE Poor current capability and low cutoff frequency are well known limits of the standard lateral PNP. Composite PNP-NPN power output stages have been widely used, regardless their high saturation drop ...
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... Figure 35. A Classical Output Stage Figure 36. Amplifier Block Diagram > 20V and BV CEO of the output transistors, which are in the range of 0.3Ω each. Then, CEsat TDA7350A > 50V both for NPN and PNP transis- CBO 13/23 ...
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... Figure 37. Circuitry for Short Circuit Detection 4.9.2 Load Dump Voltage Surge The TDA7350A has a circuit which enables it to withstand a voltage pulse train on pin 9, of the type shown in fig. 39. If the supply voltage peaks to more than 40V, then an LC filter must be inserted between the supply and pin 9, in order to assure that the pulses at pin 9 will be held within the limits shown ...
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... Open Ground When the radio is in the ON condition and the ground is accidentally opened, a standard audio amplifier will be damaged. On the TDA7350A pro- tection diodes are included to avoid any damage. 4.10.1DC Voltage The maximum operating DC voltage for the TDA7350A is 18V. However the device can with- stand a DC voltage up to 28V with no damage ...
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... This method can provide components and system cost saving. 5.1 Reducing Turn On-Off Pop The TDA7350A has been designed in a way that the turn on(off) transients are controlled through the charge(discharge) of the Csvr capacitor result of it, the turn on(off) transient spectrum contents is limited only to the subsonic range ...
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... A simple approach to solving these problems is to use the mute characteristics of the TDA7350A. If the SVR pin voltage below 1.5 V, the mute attenuation (typ)is 30dB .The amplifier is in play mode when Vsvr overcomes 3 ...
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... TDA7350A Figure 44. Figure 45. Figure 46. 18/23 ...
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... Figure 47. 5.5 Balance Input In Bridge Configuration A helpful characteristic of the TDA7350A is that, in bridge configuration, a signal present on both the input capacitors is amplified by the same amount and it is present in phase at the outputs, so this signal does not produce effects on the load.The typical value of CMRR is 46 dB. ...
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... TDA7350A A two transistor network (fig. 50) has been adopted whose components can be changed in order to achieve the desired gain without affecting the good performances of the audio amplifier itself. The recommended values for 40 dB overall gain are : Table 6. Resistance Figure 50. 20/23 Stereo 10KΩ ...
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... Multiwatt11 (Vertical) 0.075 0.102 0.144 0.152 TDA7350A OUTLINE AND MECHANICAL DATA 0016035 H 21/23 ...
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... TDA7350A Table 7. Revision History Date Revision February 2005 22/23 1 First Issue Description of Changes ...
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