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2STD1665
Low voltage fast-switching NPN power transistor
Features
Very low collector to emitter saturation
volatage
High current gain characteristic
3 3
Fast-switching speed 2
1 1
Through-hole IPAK (TO-251) power package
in tube (suffix"-1")
IPAK DPAK
Surface mounting DPAK (TO-252) power
TO251 TO252
package in tape & reel (suffix"T4")
( Suffix "-1" ) ( Suffix "T4" )
Applications
Ccfl drivers Figure 1. Internal schematic diagram
Voltage regulators
Relay drivers
High efficiency low voltage switching
applications
Description
The device is manufactured in NPN 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 Packing
2STD1665T4 D1665 DPAK Tape & reel
2STD1665-1 D1665 IPAK Tube
March 2008 Rev 2 1/11
www.st.com 11
2STD1665
Contents
1 Electrical ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1 Electrical characteristics (curves) ........................... 5
2.2 Test circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2/11
2STD1665
1 Electrical ratings
Table 2. Absolute maximum rating
Symbol Parameter Value Unit
VCBO Collector-base voltage (IE = 0) 150 V
VCEO Collector-emitter voltage (IB = 0) 65 V
VEBO Emitter-base voltage (IC = 0) 7 V
IC Collector current 6 A
ICM Collector peak current (tP < 5ms) 20 A
IB Base current 1 A
Ptot Total dissipation at Tc = 25