SGSIF344 SGSIF444
HIGH VOLTAGE FAST-SWITCHING NPN POWER TRANSISTORS
s
s s s
SGSIF344 IS SGS-THOMSON PREFERRED SALESTYP...
SGSIF344 SGSIF444
HIGH VOLTAGE FAST-SWITCHING
NPN POWER
TRANSISTORS
s
s s s
SGSIF344 IS SGS-THOMSON PREFERRED SALESTYPE HIGH VOLTAGE CAPABILITY VERY HIGH SWITCHING SPEED LOW BASE-DRIVE REQUIREMENTS
APPLICATIONS: s SWITCH MODE POWER SUPPLIES s HORIZONTAL DEFLECTION FOR COLOUR TVS AND MONITORS DESCRIPTION The SGSIF344 and SGSIF444 are manufactured using Multiepitaxial Mesa technology for cost-effective high performance and uses a Hollow Emitter structure to enhance switching speeds. These
transistors are available in ISOWATT220 and ISOWATT218 plastic package respectively. The SGSF series is designed for high speed switching applications such as power supplies and horizontal deflection circuits in TVs and monitors.
3 1 2
1
3 2
ISOWATT220
ISOWATT218
INTERNAL SCHEMATIC DIAGRAM
ABSOLUTE MAXIMUM RATINGS
Symb ol V CES V CEO VEBO IC I CM IB I BM P tot T s tg Tj June 1997 Parameter SGSIF344 Collector-Emitter Voltage (VBE = 0) Collector-Emitter Voltage (IB = 0) Emitter-Base Voltage (IC = 0) Collector Current Collector Peak Current (tp < 5 ms) Base Current Base Peak Current (tp < 5 ms) o T otal Dissipation at Tc = 25 C Storage Temperature Max. Operating Junction T emperature 1200 600 7 7 12 5 8 40 -65 to 150 150 50 Valu e SGSIF 444 V V V A A A A W
o o
Un it
C C 1/7
SGSIF344 / SGSIF444
THERMAL DATA
ISOW AT T220 ISOW AT T218 R t hj-ca se Thermal Resistance Junction-case Max 3.12 2.5
o o
C/W C/W
ELECTRICAL CHARACTERISTICS (Tcase = 25 oC unless otherwise specified)
Symb ol I CE...