TDA7245 STMicroelectronics, TDA7245 Datasheet
TDA7245
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TDA7245 Summary of contents
Page 1
... SVR TYP = 50dB (f = 100Hz) MUSIC POWER = 12W ( 10%) L PROTECTION AGAINST CHIP OVER TEMPERATURE DESCRIPTION The TDA7245 is a monolithic integrated circuit in 9+9 POWERDIP package, intended for use as Figure 1: Test and Application Circuit March 1995 TDA7245 Powerdip 9+9 ORDERING NUMBER: TDA7245 low frequency power amplifier in a wide range of applications in radio and TV sets ...
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... TDA7245 ABSOLUTE MAXIMUM RATINGS Symbol V Supply Voltage S I Output Peak Current (non repetitive t = 100 Output Peak Current (repetitive, f > 20Hz) O Power Dissipation amb P tot at T case Storage and junction Temperature stg j PIN CONNECTION (Top view) THERMAL DATA Symbol R Thermal Resistance junction-case ...
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... 50mW 1KHz f = 10KHz f = 1kHz 1W 14V 50 to 40,000 1kHz f = 1kHz 22,000Hz 10k 18V 5W 10K 16.5V 100Hz 10k V = 0.5Vrms s r Test Condition Min. Mute SW Open (play 100Hz to 10kHz 60 TDA7245 Typ. Max. Unit 0.15 0.5 % 0.8 % 0.12 % 0.5 % 0. 150 C Typ. Max. ...
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... TDA7245 ELECTRICAL CHARACTERISTCS (Continued) STAND-BY FUNCTION Symbol Parameter V Pin 5 DC Voltage st-by I Pin 5 Current st- by ATT Stand-by Attenuation st-by V Stand-by Threshold (pin Stand-by Current d st-by Note (*): MUSIC POWER CONCEPT MUSIC POWER is ( according to the IEC clauses n.268-3 of Jan 83) the maximal power which the amplifier is capable of producing across the rated load resistance (regardless of non linearity) 1 sec after the application of a sinusoidal input signal of frequency 1KHz ...
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... Danger of Oscillations Longer ON/OFF Delay Time at St-By IN/OUT Worse Turn-On POP by V and St-By S Danger of Oscillations TDA7245 Smaller than Rec. Value Worse POP and Shorter Delay at St-By Insertion Decrease of Gain Increase of Gain Worse POP and Shorter Delay at St-By insertion Degradation of SVR ...
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... TDA7245 Figure 4: DC Output Voltage vs. Supply Voltage Figure 6: Output Power vs. Supply Voltage Figure 8: Output Power vs. Supply Voltage 6/11 Figure 5: I vs. Supply Voltage D Figure 7: Output Power vs. Supply Voltage Figure 9: Distortion vs. Output Power ...
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... Figure 10: Distortion vs. Output Power Figure 12: Supply Voltage Rejection vs. Frequency (play) Figure 14: Power Dissipation & Efficiency vs. Output Power Figure 11: Distortion vs. Output Power Figure 13: Power Dissipation & Efficiency vs. Output Power Figure 15: V (=V ) vs. Supply Voltage pin5 pin4 TDA7245 7/11 ...
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... TDA7245 Figure 16: I (muting) vs. Supply Voltage pin4 Figure 18: Quiescent Current (St-By) vs. Supply Voltage Figure 20: Quiescent Current vs. V pin5 8/11 Figure 17: I (St-By) vs. Supply Voltage pin5 Figure 19: Output Attenuation vs. V MUTING / STAND- BY The muting function allows to inhibit the output signal through an external control signal. ...
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... Figure 21: Maximum Allowable Power Dissipation vs. Ambient Temperature MOUNTING INSTRUCTIONS The TDA7245 is assembled in the POWERDIP, in which 9 pins (from 10 to 18) are attached to the frame and remove the heat produced by the chip. Figure 22 shows a PC Board copper area used as a Heatsink (l = 65mm). The Thermal Resis- tance Junction-Ambient ...
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... TDA7245 POWERDIP 18 (9+9) PACKAGE MECHANICAL DATA DIM. MIN. TYP. a1 0.51 B 0.85 b 0. 8.80 e 2.54 e3 20. 3.30 Z 10/11 mm MAX. MIN. 0.020 1.40 0.033 0.50 0.015 24.80 7.10 5.10 2.54 inch TYP. MAX. 0.055 0.020 0.020 0.976 0.346 0.100 0.800 0.280 0.201 ...
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... SGS-THOMSON Microelectronics – Printed in Italy – All Rights Reserved SGS-THOMSON Microelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco - The Netherlands - Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A. TDA7245 11/11 ...