ST 2stn2540-a free download

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2STN2540-A Low voltage fast-switching PNP power bipolar transistor Features The device is qualified for automotive application Very low collector-emitter saturation voltage 4 High current gain characteristic Fast switching speed 3 Surface mounting device in medium power 2 1 SOT-223 package SOT-223 Applications Emergency lighting LED Figure 1. Internal schematic diagram CCFL drivers (back lighting) Voltage regulation Relay driver Description The device in a PNP transistor manufactured using new "PB-HCD" (Power Bipolar High Current Density) technology. The resulting transistor shows exceptional high gain performances coupled with very low saturation voltage. Table 1. Device summary Order code Marking Package Packaging 2STN2540-A N2540 SOT-223 Tape & reel January 2008 Rev 2 1/9 www.st.com 9 Electrical ratings 2STN2540-A 1 Electrical ratings Table 2. Absolute maximum rating Symbol Parameter Value Unit VCBO Collector-base voltage (IE = 0) -40 V VCEO Collector-emitter voltage (IB = 0) -40 V VEBO Emitter-base voltage (IC = 0) -6 V IC Collector current -5 A ICM Collector peak current (tP < 5ms) -10 A IBM Base peak current (tP < 5ms) -2 A Ptot Total dissipation at Tamb = 25