STD790AT4 STMicroelectronics

STD790A Medium current, high performance, low voltage PNP transistor Features Very low collector to emitter saturation voltage DC current gain, h > 100 FE 3 A continuous collector current 40 V breakdown voltage V (BR)CER 3 Surface mounting DPAK (TO-252) power package in tape and reel packing 1 DPAK Applications (TO-252) Power management in portable equipment Voltage regulation in bias supply circuits Switching regulator in battery charger Figure 1. Internal schematic diagram applications Heavy load driver Description The device in manufactured in low voltage PNP planar technology by using a Base Island layout. The resulting transistor shows exceptional high gain performance coupled with very low saturation voltage. Table 1. Device summary Order code Marking Package Packaging STD790AT4 D790A DPAK Tape and reel June 2008 Rev 3 1/9 www.st.com 9 Obsolete Product(s) - Obsolete Product(s)Electrical ratings STD790A 1 Electrical ratings Table 2. Absolute maximum rating Symbol Parameter Value Unit V Collector-base voltage (I = 0) -40 V CBO E V Collector-emitter voltage (R = 47 ) -40 V CER BE V Collector-emitter voltage (I = 0) -30 V CEO B V Emitter-base voltage (I = 0) -5 V EBO C I Collector current -3 A C I Collector peak current (t < 5 ms) -6 A CM P P Total dissipation at T = 25 C 15 W tot c T Storage temperature -65 to 150 C stg T Max. operating junction temperature 150 C J Table 3. Thermal data Symbol Parameter Value Unit R Thermal resistance junction-case max 8.33 C/W thj-case 2/9 Obsolete Product(s) - Obsolete Product(s)