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| L149 4A LINEAR DRIVER s s s s s s s HIGH OUTPUT CURRENT (4A peak) HIGH CURRENT GAIN (10.000 typ.) OPERATION UP TO 20 V THERMAL PROTECTION SHORT CIRCUIT PROTECTION OPERATION WITHIN SOA HIGH SLEW-RATE (30 V/ms) DESCRIPTION The L149 is a general purpose power booster in Pentawatt (R) package consisting of a quasi-complentary darlington output stage with the associated biasing system an inhibit facility. The device is particularly suited for use with an operational amplifier inside a closed loop configuration to increase output current. TEST CIRCUIT Pentawatt V ORDERING NUMBER: L149V July 2003 1/6 L149 ABSOLUTE MAXIMUM RATINGS Symbol VS Vi V5 - V4 V4 - V3 IO IO VINH Ptot Supply Voltage Input Voltage Upper Power Transistor VCE Lower Power Transistor VCE DC Output Current Peak Output Current (internally limited) Input Inhibit Voltage Total Power Dissipation at Tcase = 75 C) 40 40 3 4 - Vs + 5 - Vs - 1.5 25 Parameter Value 20 Unit V V s V V A A V V W PIN CONNECTION (Top view) SCHEMATIC DIAGRAM THERMAL DATA Symbol Rth-j-case Parameter Thermal resistance junction-case max Value 3 Unit C/W 2/6 L149 ELECTRICAL CHARACTERISTCS (Tj = 25 C, VS = 16V) Symbol VS Id Iin Parameter Supply Voltage Quiescent Drain Current Input current DC current drain Voltage gain Saturation voltage (for each transistor) Input offset voltage Inhibit input voltage (pins 1-3) Test Condition Min. Typ. Max. 20 Unit V mA V S = 16V V S = 16V; Vi = 0V VS = 16V; IO = 3A V S = 16V; IO = 1.5A IO = 3A V S = 16V ON condition OFF condition 1.8 6000 30 200 10000 1 3.5 0.3 0.3 400 A V V V V hFE GV VCEsat VOS VINH RINH SR B Inhibit input resistance Slew rate Power bandwidth V O = 10V, d = 1%, R L = 8 2.0 30 200 K V/s KHZ APPLICATION INFORMATION Figure 1. High slew-rate power operational amplifier (SR = 13V/s) 3/6 L149 Figure 2. Maximum saturation voltage vs. output current. Figure 5. Distorsion vs. output power (f = 1KHz). Figure 3. Current limiting characteristics. Figure 6. Distorsion vs. output power (f = 1KHz). Figure 4. Supply voltage rejection vs. frequency. Figure 7. Output power vs. supply voltage. 4/6 L149 mm TYP. inch TYP. DIM. A C D D1 E E1 F F1 G G1 H2 H3 L L1 L2 L3 L4 L5 L6 L7 L9 L10 M M1 V4 V5 Dia MIN. 2.4 1.2 0.35 0.76 0.8 1.0 3.2 6.6 10.05 17.55 15.55 21.2 22.3 2.6 15.1 6.0 2.1 4.3 4.23 3.75 3.4 6.8 17.85 15.75 21.4 22.5 4.5 4.0 3.65 MAX. MIN. 4.8 1.37 2.8 0.094 1.35 0.047 0.55 0.014 1.19 0.030 1.05 0.031 1.4 0.039 3.6 0.126 7.0 0.260 10.4 10.4 0.396 18.15 0.691 15.95 0.612 21.6 0.831 22.7 0.878 1.29 3.0 0.102 15.8 0.594 6.6 0.236 2.7 0.008 4.8 0.17 4.75 0.167 4.25 0.148 40 (typ.) 90 (typ.) 3.85 0.144 0.134 0.268 0.703 0.620 0.843 0.886 0.178 0.157 MAX. 0.189 0.054 0.110 0.053 0.022 0.047 0.041 0.055 0.142 0.276 0.409 0.409 0.715 0.628 0.850 0.894 0.051 0.118 0.622 0.260 0.106 0.189 0.187 0.167 OUTLINE AND MECHANICAL DATA Weight: 2.00gr Pentawatt V 0.152 L L1 E M1 A C D1 L5 L2 L3 D V5 H2 F E V4 E1 M H3 Dia. L9 L10 L7 L6 L4 F1 H2 F G G1 V4 RESIN BETWEEN LEADS PENTVME 0015981 5/6 L149 Information furnished is believed to be accurate and reliable. However, STMicroelectronics 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 STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. STMicroelectronics acknowledges the trademarks of all companies referred to in this document. The ST logo is a registered trademark of STMicroelectronics (c) 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 |
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