no external components no pop at turn-on/off low power consumption short circuit proof description the STA7056 is a mono bridge amplifier assem- bled in single in line 9 pins package. the STA7056 is specially designed for battery fed portable recorders, radios and tv receivers. this is preliminary information on a new product now in development or undergoing evaluation. details are subject to change wit hout notice. march 2000 ? 0.1 m f 220 m f 2 4 7 8 6 power gnd signal gnd vi vs rs 5k w rl 16 w (+) (-) d99au1000b + - (1) (1) this capacitor can be omitted if the supply electrolytic capacitor is placed closer to pin 2 3 block diagram sip9 ordering number: STA7056 STA7056 3w mono bridge amplifier product preview bi20ii technology 1/5
absolute maximum ratings symbol parameter value unit v s supply voltage 20 v i o output peak current (repetitive f 3 20hz) 1 a i o output peak current (non repetitive t = 100 m s) 1.5 a p tot total power dissipation (tcase <70c) 10 w t j ,t stg storage and function temperature -40 to 150 c t sc short circuit time (the load can be short circuited to all input conditions) 1hr thermal data symbol parameter value unit r th j-case thermal resistance junction-case 8 c/w r th j-amb thermal resistance junction-ambient 50 c/w power dissipation assume: v s = 11v; r l = 16 w the minimum sine-wave dissipation is p d max = v s 2 p 2 r l 2 = 1.52w the rth j - amb of the package is 50c/w. t amb (max) = 150 - 50 x 1.52 = 74c 1 2 3 4 5 6 7 8 output(-) power ground output(+) n.c. signal ground input(+) v s n.c. 9 n.c. sip9 pin connection STA7056 2/5
electrical characteristics (refer to the test circuit, v s = 12v; r l = 16 w ; r s = 50 w ; f = 1khz, t amb = 25c unless otherwise specified.) symbol parameter test condition min. typ. max. unit v s supply voltage 3 18 v i q total quiescent current r l = 68ma r l = 16 w 10 20 ma i o repetitive peak output current 0.9 a p o output power thd = 10%; r l = 16 w 2.8 3.3 w thd = 10%; r l = 8 w 4.5 w thd total harmonic distortion p o = 0.5w 0.25 1 % g v voltage gain 39 40.5 42 db |zin| input impedance 100 k w i i input bias current 100 300 na d v o dc output offset voltage r s = 5k w 250 mv svr supply voltage rejection r s = 0 w ; f = 100hz to 10 khz; vr = 0.2v 36 50 db vno noise output voltage r s = 5k w ; f = 20hz to 20 khz; 180 300 m v STA7056 3/5
sip9 dim. mm inch min. typ. max. min. typ. max. a 7.1 0.280 a1 2.7 3 0.106 0.118 b230.90 b3 24.8 0.976 b1 0.5 0.020 b3 0.85 1.6 0.033 0.063 c 3.3 0.130 c1 0.43 0.017 c2 1.32 0.052 d 21.2 0.835 d1 14.5 0.571 e 2.54 0.100 e3 20.32 0.800 l 3.1 0.122 l1 3 0.118 l2 17.6 0.693 l3 0.25 0.010 l4 17.4 17.85 0.685 0,702 m 3.2 0.126 n 1 0.039 p 0.15 0.006 d n m l1 19 d1 l3 l2 la1 e3 b3 b1 b ec 1 a c2 c p l4 sip9 b3 outline and mechanical data STA7056 4/5
information furnished is believed to be accurate and reliable. however, stmicroelectronics assumes no responsib ility for the cons equences 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 stmicroelectronics. specification mentioned in this pu blication are subject to change without notice. this publication supersedes and replaces all information previously supplied. stmicroelectron ics products are not authorized for use as critical components in life support devices or systems without express written approval of stmicr oelectronics. the st logo is a registered trademark of stmicroelectronics ? 2000 stmicroelectronics C printed in italy C all rights reserved stmicroelectronics group of companies australia - brazil - china - finland - france - germany - hong kong - india - italy - japan - malaysia - malta - morocco - singapore - spain - sweden - switzerland - united kingdom - u.s.a. http://www.st.com STA7056 5/5
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