Text preview for : stt818b.pdf part of ST stt818b . Electronic Components Datasheets Active components Transistors ST stt818b.pdf
Back to : stt818b.pdf | Home
STT818B
High gain low voltage PNP power transistor
Features
Very low collector to emitter saturation voltage
DC current gain > 100 (hFE)
3 A continuous collector current (IC)
Applications
Power management in portable equipments
SOT23-6L
Switching regulator in battery charger
applications
Description
The device is manufactured in low voltage PNP
Planar Technology with "Base Island" layout. The Figure 1. Internal schematic diagram
resulting Transistor shows exceptional high gain
performance coupled with very low saturation
voltage.
Table 1. Device summary
Order code Marking Package Packaging
STT818B 818B SOT23-6L Tape & reel
August 2007 Rev 5 1/10
www.st.com 10
Contents STT818B
Contents
1 Electrical ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1 Electrical characteristics (curves) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2/10
STT818B Electrical ratings
1 Electrical ratings
Table 2. Absolute maximum rating
Symbol Parameter Value Unit
VCBO Collector-base voltage (IE = 0) -30 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 < 5ms) -6 A
IB Base current -0.2 A
IBM Base peak current (tP < 5ms) -0.5 A
Ptot Total dissipation at Tamb = 25