TDA7365 2 x 6w car radio amplifier plus solid state switch advance data output power 2x6w/4 w @14.4v, 1khz, 10% solid state power switch included (1a @ v drop = 0.8v typ.) minimum external component count - internally fixed gain (40db) - no bootstrap capacitors - no external compensation st-by function (cmos compatible) mute function (cmos compatible) no audible pop during mute/st-by operations low supply self muting protections ac audio outputs short circuit to gnd dc audio outputs short circuit to gnd and to v s at power on switch output internal current limitation overrating chip temperature with soft thermal limiter load dump fortuitous open gnd reverse battery esd description the TDA7365 is a new technology dual audio am- plifier in multiwatt15 package especially designed for stereo car radio applications. thanks to the fully complementary output configu- ration the TDA7365 delivers a rail to rail voltage swing with no need of boostrap capacitors it includes a solid state switch, enabled by a st-by function common to the audio section, suitable for supplying both the signal processing part of the car radio set and the lamps. as a results the power-on operation is simplified, thereby saving cost and space in the whole power section. this is advanced information on a new product now in development or undergoing evaluation. details are subject to change without notice. april 1995 block diagram multiwatt15 ordering number: TDA7365 1/7
pin connection (top view) absolute maximum ratings symbol parameter value unit v s dc supply voltage 28 v v op operating supply voltage 18 v v peak peak supply voltage (t = 50ms) 40 v i o audio channels output peak current (not rep. t = 100 m s) 4 a i o audio channels output peak current (rep. f > 10hz) 3 a i o switch output peak current (internally limited) 1.5 a p tot power dissipation (t case = 85 c) 32 w t stg , t j storage and junction temperature -40 to 150 c thermal data symbol description value unit r th j-case thermal resistance junction-case max 2 c/w vs vs TDA7365 2/7
electrical characteristics (refer to the test circuit; v s = 14.4v; r l = 4 w , t amb = 25c, f = 1khz, unless otherwise specified) symbol parameter test condition min. typ. max. unit v s supply range 8 18 v i d total quiescent drain current power switch unloaded 80 ma p o output power r l = 4 w ; thd = 10% each channel 5.5 6 w r l = 2 w ; thd = 10% each channel 9w d distortion p o = 0.1 to 3w 0.08 0.3 % ct cross talk f = 1khz; r g = 0 f = 10khz; r g = 0 50 55 50 db db r in input impedance 40 50 k w g v voltage gain 39 40 41 db g v voltage gain match. 1 db e in input noise voltage (*) r g = 0 1.2 5 m v svr supply voltage rejection r g = 0 ; f = 100hz; v r = 0.5v rms 45 50 db asb stand-by attenuation 60 90 db i sb st-by current consumption 100 m a v sb in st-by in threshold voltage 1.5 v v sb out st-by out threshold voltage 3.5 v v m in mute in threshold voltage 1.5 v v m out mute out threshold voltage 3.5 v power switch characteristics symbol parameter test condition min. typ. max. unit i op continuous output current 1.2 a v drop dropout voltage io = 1a 1.4 v (*) 22hz to 22khz (**) a weighted 0.1 m f c6 +v s 470 m f c5 47 m f c10 svr 0.22 m f c1 in1 in2 0.22 m f c2 st-by 0.1 m f c7 10k r1 50k power switch 50k 4.7 m f c9 pwr switch output to the voltage regulator supplying the low signal section pw-gnd s-gnd out1 out2 mute 10k r2 10 m f c8 1000 m f c3 1000 m f c4 d94au116b test and application circuit TDA7365 3/7
figure 1: p.c.board and component layout of the test and application circuit 1:1 scale. figure 4: output power vs. supply voltage figure 5: distortion vs. output power figure 2: quiescent drain current vs. supply voltage figure 3: output power vs. supply voltage TDA7365 4/7
figure 10: total power dissipation and efficiency vs. output power figure 11: total power dissipation and efficiency fiigure 8: cross-talk vs. frequency figure 9: switch drop-out vs. switch current fiigure 6: distortion vs. frequency figure 7: supply voltage rejection p tot (w) p tot TDA7365 5/7
multiwatt15 package mechanical data dim. mm inch min. typ. max. min. typ. max. a 5 0.197 b 2.65 0.104 c 1.6 0.063 d 1 0.039 e 0.49 0.55 0.019 0.022 f 0.66 0.75 0.026 0.030 g 1.14 1.27 1.4 0.045 0.050 0.055 g1 17.57 17.78 17.91 0.692 0.700 0.705 h1 19.6 0.772 h2 20.2 0.795 l 22.1 22.6 0.870 0.890 l1 22 22.5 0.866 0.886 l2 17.65 18.1 0.695 0.713 l3 17.25 17.5 17.75 0.679 0.689 0.699 l4 10.3 10.7 10.9 0.406 0.421 0.429 l7 2.65 2.9 0.104 0.114 m 4.2 4.3 4.6 0.165 0.169 0.181 m1 4.5 5.08 5.3 0.177 0.200 0.209 s 1.9 2.6 0.075 0.102 s1 1.9 2.6 0.075 0.102 dia1 3.65 3.85 0.144 0.152 TDA7365 6/7
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. specifications men- tioned in this publi cation are subject to change without not ice. this publication sup ersedes and replaces all information previously supplied. sgs-thomson microelectronics products are not authorized for use as critical components in life support dev ices or systems without ex- press written approval of sgs-thomson microelectronics. ? 1995 sgs-thomson microelectronics - all rights reserved multiwatt? is registered trademark of sgs-thomson microelectronics sgs-thomson microelectronics group of companies aust ralia - brazil - france - germany - hong kong - italy - japan - korea - malaysia - malta - morocco - the netherlands - singapore - spain - sweden - switzerland - taiwan - thaliand - united k ingdom - u.s.a. TDA7365 7/7
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