Text preview for : stn790a.pdf part of ST stn790a . Electronic Components Datasheets Active components Transistors ST stn790a.pdf
Back to : stn790a.pdf | Home
STN790A
Medium current, high performance, low voltage PNP transistor
Features
Very low collector to emitter saturation voltage
DC current gain, hFE >100
4
3 A continuous collector current
40 V breakdown voltage V(BR)CER
SOT-223 plastic package for surface mounting
3
circuits in tape and reel packing
2
1
SOT-223
Applications
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
STN790A N790A SOT-223 Tape and reel
June 2008 Rev 4 1/9
www.st.com 9
Electrical ratings STN790A
1 Electrical ratings
Table 2. Absolute maximum rating
Symbol Parameter Value Unit
VCBO Collector-base voltage (IE = 0) -40 V
VCER Collector-emitter voltage (R BE = 47 ) -40 V
VCEO Collector-emitter voltage (IB = 0) -30 V
VEBO Emitter-base voltage (IC = 0) -5 V
IC Collector current -3 A
ICM Collector peak current (tP < 5 ms) -6 A
Ptot Total dissipation at Tamb = 25