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STD2805
Low voltage fast-switching PNP power transistor
Preliminary Data
Features
Very low collector to emitter saturation voltage
High current gain characteristic
Fast-switching speed
Surface-mounting DPAK (TO-252) power
3 3
package in tape & reel (suffix "T4) 2
1 1
Through-hole IPAK (TO-251) power package
in tube (suffix "-1") TO-252 TO-251
DPAK IPAK
Description (suffix "T4") (suffix "-1")
The device is manufactured in PNP Planar
technology by using a "Base Island" layout. The
resulting transistor shows exceptional high gain
performance coupled with very low saturation Figure 1. Internal schematic diagram
voltage.
Applications
CCFL drivers
Voltage regulators
Relay drivers
High efficiency low voltage switching
applications
Table 1. Devices summary
Order codes Marking Package Packaging
STD2805T4 D2805 DPAK Tape & reel
STD2805-1 D2805 IPAK Tube
June 2007 Rev 1 1/9
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to www.st.com 9
change without notice.
Electrical ratings STD2805
1 Electrical ratings
Table 1. Absolute maximum rating
Symbol Parameter Value Unit
VCBO Collector-base voltage (IE =0) -60 V
VCEO Collector-emitter voltage (IB =0) -60 V
VEBO Emitter-base voltage (IC =0) -6 V
IC Collector current -5 A
ICM Collector peak current (tP < 5ms) -10 A
IB Base current -2 A
Ptot Total dissipation at T c 25