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2STF2220
High gain Low Voltage PNP power transistor
Features

Very low Collector to Emitter saturation voltage D.C. Current gain, hFE >100 1.5 A continuous collector current
Applications

Power management in portable equipment Switching regulator in battery charger applications
SOT-89
Description
The device in a PNP transistor manufactured using new "PB-HDC" (Power Bipolar High Density Current) technology. The resulting transistor shows exceptional high gain performances coupled with very low saturation voltage. Figure 1. Internal schematic diagram
Table 1.
Device summary
Marking 2220 Package SOT-89 Packaging Tape & reel
Order code 2STF2220
September 2007
Rev 3
1/11
www.st.com 11
2STF2220
Contents
1 2 Electrical ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1 2.2 Electrical characteristics (curves) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Test circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3 4
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
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2STF2220
Electrical ratings
1
Electrical ratings
Table 2.
Symbol VCBO VCEO VEBO IC ICM IB IBM Ptot Tstg TJ
Absolute maximum rating
Parameter Collector-base voltage (IE = 0) Collector-emitter voltage (IB = 0) Emitter-base voltage (IC = 0) Collector current Collector peak current (tP < 5ms) Base current Base peak current (tP < 5ms) Total dissipation at T amb = 25C Storage temperature Max. operating junction temperature Value -20 -20 -5 -1.5 -3 -0.1 -0.2 1.4 -65 to 150 150 Unit V V V A A A A W C C
Table 3.
Symbol
Thermal data
Parameter __max Value 89 Unit C/W
Rthj-amb(1) Thermal resistance junction-amb (1) Device mounted on PCB area of 1cm2
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Electrical characteristics
2STF2220
2
Electrical characteristics
(Tcase = 25C unless otherwise specified) Table 4.
Symbol ICBO IEBO
Electrical characteristics
Parameter Collector cut-off current (IE =0) Emitter cut-off current (IC =0) Test Conditions VCB = -20V VEB = -5V Min. Typ. Max. -0.1 -0.1 Unit A A
Collector-emitter V(BR)CEO (2) breakdown voltage (IB = 0) V(BR)EBO VCE(sat) (2) Emitter-base breakdown voltage (IC = 0) Collector-emitter saturation voltage Base-emitter saturation voltage Base-emitter on voltage
IC = -10mA
-20
V
IE = -100A IC = -0.5A IC = -1.5A IC = -0.5A IC = -1.5A IC = -1A IC = -100mA IB = -50mA IB = -150mA IB = -50mA IB = -150mA V CE = -2V V CE = -2V V CE = -2V V CE = -2V V CE = -2V VCB = -10V
-5 -0.25 -0.45 -1 -1.1 -1 200 170 120 75 30 600
V V V V V V
VBE(sat) (2) VBE(on) (2)
hFE (2)
DC current gain
IC = -500mA IC = -1.5A IC = -3A IE = 0 f = 1MHz IC = -1.5A
CCBO
Collector-base capacitance Resistive load Turn-on time Turn-off time
pF
ton toff
V CC = -10V
IB1 = -IB2 = -150mA
60 250
ns ns
Note (2) Pulsed duration = 300 s, duty cycle 1.5%
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2STF2220
Electrical characteristics
2.1
Electrical characteristics (curves)
Figure 2. Output characteristics Figure 3. Derating curve
Figure 4.
DC current gain
Figure 5.
DC current gain
Figure 6.
Collector-emitter saturation voltage
Figure 7.
Base-emitter saturation voltage
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Electrical characteristics Figure 8. Base-emitter on voltage Figure 9. Capacitance curves
2STF2220
Figure 10. Switching time resistive load Figure 11. Switching time resistive load
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2STF2220
Electrical characteristics
2.2
Test circuits
Figure 12. Resistive load switching test circuit
1) Fast electronic switch 2) Non-inductive resistor
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Package mechanical data
2STF2220
3
Package mechanical data
In order to meet environmental requirements, ST offers these devices in ECOPACK(R) packages. These packages have a Lead-free second level interconnect. The category of second level interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com
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2STF2220
Package mechanical data
SOT-89 MECHANICAL DATA
mm MIN. A B B1 C C1 D D1 E e e1 H L 1.4 0.44 0.36 0.35 0.35 4.4 1.62 2.29 1.42 2.92 3.94 0.89 TYP. MAX. 1.6 0.56 0.48 0.44 0.44 4.6 1.83 2.6 1.57 3.07 4.25 1.2 MIN. 55.1 17.3 14.2 13.8 13.8 173.2 63.8 90.2 55.9 115.0 155.1 35.0 mils TYP. MAX. 63.0 22.0 18.9 17.3 17.3 181.1 72.0 102.4 61.8 120.9 167.3 47.2
DIM.
P025H
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Revision history
2STF2220
4
Revision history
Table 5.
Date 19-Jun-2006 27-Sep-2006 18-Sep-2007
Document revision history
Revision 1 2 3 Initial release. New maturity code. Added Figure 3. Changes
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2STF2220
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