TDA7253 8w amplifier with muting wide supply voltage range 8w @ v s =26v, r l = 8 w , thd=10% mute facility (pop free) with low consumption ac short circuit protection thermal overload protection (150 c) description the TDA7253 is class ab audio power amplifier assembled in the new clipwatt package. may 1997 = mute sw csvr 100 m f r7 820 27k c2 100nf in (l) 1 11 3 TDA7253 7 6 cf 47 m fr4 47 r3 1.5k c9 0.1 m f r6 4.7 rl c11 1000 m f c4 0.1 m f c5 470 m f 2 10 9 8 4 +v s d94au130 application circuit clipwatt11 1/5
absolute maximum ratings symbol parameter value unit v s supply voltage 35 v i o output peak current (repetitive f >20hz) 2.5 a i o output peak current (non repetitive, t = 100 m s) 3.5 a p tot total power dissipation (t case = 70 c) 25 w t op operating temperature range 0 to 70 c t stg,tj storage & junction temperature -40 to 150 c 1 2 3 4 5 6 7 9 10 11 8 n.c. +vs output n.c. gnd non inverting input inverting input svr/muting n.c. n.c. n.c. d93au037a pin connection (top view) figure 1: application circuit TDA7253 2/5
electrical characteristics (refer to the test and application circuit, v s = 26v; r l = 8 w; g v = 30db; f = 1khz; t amb = 25 c unless otherwise specified.) symbol parameter test condition min. typ. max. unit v s supply voltage 10 32 v v o quiescent output voltage 12.5 v i q total quiescent current 40 ma p o output power d = 10% d = 1% 810 8 w w d total harmonic distortion p o = 1w 0.03 % r i input resistance 100 200 k w f l low frequency roll-off (-3db) 40 hz f h high frequency roll-off (-3db) 80 khz e n total input noise voltage a curve; r s = 10k w 2mv f = 22hz to 22khz; r s = 10k w 2.5 10 m v svr supply voltage rejection r s = 10k w ; f = 100hz; vr = 0.5v 60 db vt mute mute threshold 0.8 v vt play play threshold 5 v a m mute attenuation 80 100 db i qmute quiescent current mute 7 10 ma note: to avoid pop-on noise c f c svr 1 figure 1: output power vs. supply voltage 8 12 16 20 24 28 vs(v) d94au131 20 25 30 35 40 45 iq (ma) figure 2: quiescent current vs. supply voltage thermal data symbol parameter value unit r th j-case thermal resistance junction to case max 3 c/w TDA7253 3/5
clipwatt11 package mechanical data dim. mm inch min. typ. max. min. typ. max. a 3.10 0.122 b 1.10 0.04 c 0.15 0.006 d 1.50 0.059 e 0.52 0.02 f 0.80 0.03 g 1.70 0.066 g1 17.00 0.66 h1 12.00 0.48 h3 20.00 0.79 l 17.90 0.70 l1 14.40 0.57 l2 11.00 0.43 m 2.54 0.1 m1 2.54 0.1 TDA7253 4/5
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 f rom 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 s upplied. sgs- thomson microelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of sgs-thomson microelectronics. ? 1997 sgs-thomson microelectronics C printed in italy C all rights reserved sgs-thomson microelectronics group of companies australia - brazil - canada - china - france - germany - hong kong - italy - japan - korea - malaysia - malta - morocco - the n etherlands - singapore - spain - sweden - switzerland - taiwan - thailand - united kingdom - u.s.a. TDA7253 5/5
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