L149 STMICROELECTRONICS | Alldatasheet
Document overview
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Technical content
■ 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 ® 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
PIN CONNECTION (Top view) SCHEMATIC DIAGRAM THERMAL DATA Symbol Parameter Value Unit VS Supply Voltage ±20 V Vi Input Voltage Vs V5 - V4 Upper Power T ransistor VCE 40 V V4 - V3 Lower Power T ransistor VCE 40 V IO DC Output Current 3 A IO Peak Output Current (internally limited) 4 A VINH Input Inhibit Voltage - Vs + 5 V - Vs - 1.5 V Ptot T otal Power Dissipation at Tcase = 75 °C) 25 W Symbol Parameter Value Unit R th-j-case Thermal resistance junction-case max 3 °C/W
ELECTRICAL CHARACTERISTCS (Tj = 25 °C, VS = ± 16V)
APPLICATION INFORMATION
Figure 1. High slew-rate power operational amplifier (SR = 13V/µs)
Weight: 2.00gr Pentawatt V DIM. mm inch 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 H2 10.4 0.409 H3 10.05 10.4 0.396 0.409 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 V4 40˚ (typ.) V5 90˚ (typ.) Dia 3.65 3.85 0.144 0.152 L A C D1 L2 E MD Dia. L10 F GG 1 F E RESIN BETWEEN LEADS PENTVME 0015981 OUTLINE AND MECHANICAL DATA
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