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| TDA7253 8W AMPLIFIER WITH MUTING WIDE SUPPLY VOLTAGE RANGE 8W @ VS=26V, RL = 8, THD=10% MUTE FACILITY (POP FREE) WITH LOW CONSUMPTION AC SHORT CIRCUIT PROTECTION THERMAL OVERLOAD PROTECTION (150C) DESCRIPTION The TDA7253 is class AB audio power amplifier assembled in the new Clipwatt package. Clipwatt11 APPLICATION CIRCUIT R7 820 = MUTE SW CSVR 100F 1 11 C2 IN (L) 3 +VS C4 0.1F 9 10 2 C5 470F TDA7253 8 C11 1000F R3 1.5K R4 47 100nF 27K 7 6 4 CF C9 0.1F R6 4.7 RL 47F D94AU130 May 1997 1/5 TDA7253 ABSOLUTE MAXIMUM RATINGS Symbol VS IO IO Ptot Top Tstg,Tj Supply Voltage Output Peak Current (repetitive f >20Hz) Output Peak Current (non repetitive, t = 100s) Total Power Dissipation (Tcase = 70C) Operating Temperature Range Storage & Junction Temperature Parameter Value 35 2.5 3.5 25 0 to 70 -40 to 150 Unit V A A W C C PIN CONNECTION (Top view) 11 10 9 8 7 6 5 4 3 2 1 D93AU037A N.C. N.C. +Vs OUTPUT N.C. GND NON INVERTING INPUT INVERTING INPUT SVR/MUTING N.C. N.C. Figure 1: Application Circuit 2/5 TDA7253 THERMAL DATA Symbol Rth j-case Parameter Thermal resistance junction to case Max Value 3 Unit C/W ELECTRICAL CHARACTERISTICS (Refer to the test and application circuit, VS = 26V; RL = 8; Gv = 30dB; f = 1KHz; Tamb = 25C unless otherwise specified.) Symbol VS VO Iq PO d RI fL fH eN SVR VTMUTE VTPLAY AM IqMUTE Parameter Supply Voltage Quiescent Output Voltage Total Quiescent Current Output Power Total Harmonic Distortion Input Resistance Low Frequency Roll-off (-3dB) High Frequency Roll-off (-3dB) Total Input Noise Voltage Supply Voltage Rejection Mute Threshold Play Threshold Mute Attenuation Quiescent Current Mute CF 1 CSVR Test Condition Min. 10 Typ. 12.5 40 Max. 32 Unit V V mA W W % K Hz KHz mV d = 10% d = 1% PO = 1W 8 10 8 0.03 200 40 80 100 A Curve; RS = 10K f = 22Hz to 22KHz; RS = 10K RS = 10K; f = 100Hz; Vr = 0.5V 5 80 2 2.5 60 0.8 100 7 10 10 V dB V V dB mA Note: to avoid pop-on noise Figure 1: Output Power vs. Supply Voltage Figure 2: Quiescent Current vs. Supply Voltage Iq (mA) 45 40 35 30 25 20 8 12 16 20 24 28 Vs(V) D94AU131 3/5 TDA7253 CLIPWATT11 PACKAGE MECHANICAL DATA DIM. MIN. A B C D E F G G1 H1 H3 L L1 L2 M M1 0.15 1.50 0.52 0.80 1.70 17.00 12.00 20.00 17.90 14.40 11.00 2.54 2.54 mm TYP. MAX. 3.10 1.10 0.006 0.059 0.02 0.03 0.066 0.66 0.48 0.79 0.70 0.57 0.43 0.1 0.1 MIN. inch TYP. MAX. 0.122 0.04 4/5 TDA7253 Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics 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 SGS-THOMSON Microelectronics. Specification mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. SGSTHOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of SGS-THOMSON Microelectronics. (c) 1997 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. 5/5 |
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