1/6 l149 july 2003 n high output current (4a peak) n high current gain (10.000 typ.) n operation up to 20 v n thermal protection n short circuit protection n operation within soa n high slew-rate (30 v/ms) description the l149 is a general purpose power booster in pentawatt ? package consisting of a quasi-com- plentary darlington output stage with the associat- ed biasing system an inhibit facility. the device is particularly suited for use with an op- erational amplifier inside a closed loop configura- tion to increase output current. pentawatt v ordering number: l149v 4a linear driver test circuit obsolete product(s) - obsolete product(s) obsolete product(s) - obsolete product(s)
l149 2/6 absolute maximum ratings pin connection (top view) schematic diagram thermal data symbol parameter value unit v s supply voltage 20 v v i input voltage v s v 5 - v 4 upper power transistor v ce 40 v v 4 - v 3 lower power transistor v ce 40 v i o dc output current 3 a i o peak output current (internally limited) 4 a v inh input inhibit voltage - vs + 5 v - vs - 1.5 v p tot total power dissipation at t case = 75 c) 25 w symbol parameter value unit r th-j-case thermal resistance junction-case max 3 c/w obsolete product(s) - obsolete product(s) obsolete product(s) - obsolete product(s)
3/6 l149 electrical characteristcs (t j = 25 c, v s = 16v) application information figure 1. high slew-rate power operational amplifier (sr = 13v/ m s) symbol parameter test condition min. typ. max. unit v s supply voltage 20 v i d quiescent drain current v s = 16v 30 ma i in input current v s = 16v; v i = 0v 200 400 m a h fe dc current drain v s = 16v; i o = 3a 6000 10000 - g v voltage gain v s = 16v; i o = 1.5a 1 - v cesat saturation voltage (for each transistor) i o = 3a 3.5 v v os input offset voltage v s = 16v 0.3 v v inh inhibit input voltage (pins 1-3) on condition 0.3 v off condition 1.8 v r inh inhibit input resistance 2.0 k w sr slew rate 30 v/ m s b power bandwidth v o = 10v, d = 1%, r l = 8 w 200 kh z obsolete product(s) - obsolete product(s) obsolete product(s) - obsolete product(s)
l149 4/6 figure 2. maximum saturation voltage vs. output current. figure 3. current limiting characteristics. figure 4. supply voltage rejection vs. frequency. figure 5. distorsion vs. output power (f = 1khz). figure 6. distorsion vs. output power (f = 1khz). figure 7. output power vs. supply voltage. obsolete product(s) - obsolete product(s) obsolete product(s) - obsolete product(s)
5/6 l149 weight: 2.00gr pentawatt v dim. mm inch min. typ. max. min. typ. max. a 4.8 0.189 c 1.37 0.054 d 2.4 2.8 0.094 0.110 d1 1.2 1.35 0.047 0.053 e 0.35 0.55 0.014 0.022 e1 0.76 1.19 0.030 0.047 f 0.8 1.05 0.031 0.041 f1 1.0 1.4 0.039 0.055 g 3.2 3.4 3.6 0.126 0.134 0.142 g1 6.6 6.8 7.0 0.260 0.268 0.276 h2 10.4 0.409 h3 10.05 10.4 0.396 0.409 l 17.55 17.85 18.15 0.691 0.703 0.715 l1 15.55 15.75 15.95 0.612 0.620 0.628 l2 21.2 21.4 21.6 0.831 0.843 0.850 l3 22.3 22.5 22.7 0.878 0.886 0.894 l4 1.29 0.051 l5 2.6 3.0 0.102 0.118 l6 15.1 15.8 0.594 0.622 l7 6.0 6.6 0.236 0.260 l9 2.1 2.7 0.008 0.106 l10 4.3 4.8 0.17 0.189 m 4.23 4.5 4.75 0.167 0.178 0.187 m1 3.75 4.0 4.25 0.148 0.157 0.167 v4 40? (typ.) v5 90? (typ.) dia 3.65 3.85 0.144 0.152 l l1 a c l5 d1 l2 l3 e m1 m d h3 dia. l7 l9 l10 l6 f1 h2 f gg1 e1 f e v4 resin between leads h2 v5 v4 pentvme l4 0015981 outline and mechanical data obsolete product(s) - obsolete product(s) obsolete product(s) - obsolete product(s)
information furnished is believed to be accurate and reliable. however, stmicroelectronics assumes no responsibility for the co nsequences 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. specifications mentioned in this publicati on are subject to change without notice. this publication supersedes and replaces all information previously supplied. stmicroelectronics prod ucts are not authorized for use as critical components in life support devices or systems without express written approval of stmicroelectro nics. stmicroelectronics acknowledges the trademarks of all companies referred to in this document. the st logo is a registered trademark of stmicroelectronics ? 2003 stmicroelectronics - all rights reserved stmicroelectronics group of companies australia - brazil - canada - china - finland - france - germany - hong kong - india - israel - italy - japan -malaysia - malta - morocco - singapore - spain - sweden - switzerland - united kingdom - united states. http://www.st.com 6/6 l149 obsolete product(s) - obsolete product(s) obsolete product(s) - obsolete product(s)
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