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Medium current, high performance, low voltage PNP transistor

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Last Updated: 01/07/2008

Pages: 10

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STX790A
Medium current, high performance, low voltage PNP transistor
Features

Very low collector to emitter saturation voltage DC current gain, hFE > 100 3 A continuous collector current 40 V breakdown voltage V(BR)CER

Applications

Power management in portable equipment Voltage regulation in bias supply circuits Switching regulator in battery charger applications Heavy load driver

TO-92

TO-92AP

Figure 1.

Internal schematic diagram

Description
The device in manufactured in low voltage PNP 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
Marking X790A X790A Package TO-92 TO-92 AP Packaging Bulk Ammopack

O rder code STX790A STX790A-AP

June 2008

Rev 3

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Electrical ratings

STX790A

1

Electrical ratings
Table 2.
S y mb o l VCBO VCER VCEO VEBO IC ICM Ptot Tstg TJ

Absolute maximum rating
Parameter Collector-base voltage (IE = 0) Collector-emitter voltage (R BE = 47 ) Collector-emitter voltage (IB = 0) Emitter-base voltage (IC = 0) Collector current Collector peak current (tP < 5 ms) Total dissipation at Tamb = 25 C Storage temperature Max. operating junction temperature Value - 40 - 40 - 30 -5 -3 -6 0. 9 -65 to 150 150 Unit V V V V A A W C C

Table 3.
S y mb o l Rthj-case Rthj-amb

Thermal data
Parameter Thermal resistance junction-case Thermal resistance junction-amb __max __max Value 44.6 139 Uni t C/W C/W

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STX790A

Electrical characteristics

2

Electrical characteristics
(Tcase = 25 C unless otherwise specified) Table 4.
Symbol ICBO

Electrical characteristics
Parameter Collector cut-off current (IE = 0) Emitter cut-off current (IC = 0) Test conditions VCB = -30 V VCB = -30 V; VEB = -4 V TC = 100 C Min. Typ. Max. -10 -100 -10 Unit A A A

IEBO

Collector-emitter V(BR)CEO (1) breakdown voltage (IB = 0) V(BR)CER
(1)

IC = -10 mA

-30

V

Collector-emitter breakdown voltage (RBE = 47 ) Collector-base breakdown voltage (IE = 0) Emitter-base breakdown voltage (IC = 0)

IC = -10 mA

-40

V

V(BR)CBO

IC = -100 A

-40

V

V(BR)EBO

IE = -100 A IC = -0.5 A IC = -1.2 A IB = -5 mA IB = -20 mA IB = -20 mA IB = -100 mA IB = -100 mA

-5 -0.15 -0.25 -0.5 -0.7 -0.9 IB = -10mA V CE = -2V V CE = -2V V CE = -2V V CE = -2V V CE = -1V V CE = -1V 100 100 100 100 90 160 130 -0.8 -0.8 200 200 -1 -1 400 400

V V V V V V V V

VCE(sat)

(1)

Collector-emitter saturation voltage

IC = -2 A IC = -3 A IC = -3 A TJ = 100 C

VBE(sat) (1) VBE(on) (1)

Base-emitter saturation voltage Base-emitter on voltage

IC = -1A IC = -1A IC = -10mA IC = -500mA

hF E

(1)

DC current gain

IC = -1A IC = -2A IC = -3A

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Electrical characteristics Table 4.
S y mb o l ft

STX790A

Electrical characteristics (continued)
Parameter Transition frequency Resistive load Delay time Rise time Storage time Fall time Test conditions IC = -50 mA f = 50 MHz V CE = -5 V Min. Typ. 100 Max. Unit M Hz

td tr ts tf

IC = -3 A see Figure 8

V CC = -20 V

180 160 250 80

220 210 300 100

ns ns ns ns

IB1 = -IB2 = -60 mA

1. Pulse duration = 300 s, duty cycle 1.5%

2.1

Electrical characteristics (curves)
Figure 2. DC current gain Figure 3. DC current gain

Figure 4.

Collector-emitter saturation voltage

Figure 5.

Base-emitter saturation voltage

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STX790A Figure 6. Switching time resistive load Figure 7.

Electrical characteristics Switching time resistive load

2.2

Test circuit
Figure 8. Resistive load switching test circuit

1) Fast electronic switch 2) Non-inductive resistor

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Package mechanical data

STX790A

3

Package mechanical data
In order to meet environmental requirements, ST offers these devices in ECOPACK 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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STX790A

Package mechanical data

TO-92 bulk shipment mechanical data
mm. DIM. MIN. T YP M AX .

A b D E e e1 L R S1 W V

4 .32 0 .36 4.45 3 .30 2.41 1.14 12.70 2.16 0.92 0.41 5o

4 .95 0 .51 4.95 3 .94 2.67 1.40 15.49 2.41 1.52 0.56

0102782 D

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Package mechanical data

STX790A

TO-92 ammopack shipment (suffix"-AP") mechanical data

Dim. A1 T T1 T2 d P0 P2 F1,F2 F3 delta H W W0 W1 W2 H H3 H0 H1 D0 t L I1 delta P

M in

mm Ty p

12.50 5.65 2.44 4.98 -2 . 0 0 17.50 5.70 8.50 18.50 0.5 15.50 3.80

12.70 6.35 2.54 5.08 18.00 6.00 9.00

1 16.00 4.00

Max 4.80 3.80 1.60 2.30 0.48 12.90 7.05 2.94 5.48 2.00 19.00 6.30 9.25 0.50 20.50 1.5 16.50 25.00 4.20 0.90 11.00 1.00

3.00 -1 . 0 0

0050910S

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STX790A

Revision history

4

Revision history
Table 5.
Dat e 24-Mar-2003 29-Mar-2006 25-Jun-2008

Document revision history
Revision 1 2 3 Initial release. New template. Updated TO-92 mechanical data. Changes

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STX790A

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