STMicroelectronics MD1802FX User manual

August 2007 Rev 2 1/11
11
MD1802FX
High voltage NPN power transistor for standard
definition CRT display
Features
■State-of-the-art technology:
– Diffused collector “Enhanced generation”
■Stable performances versus operating
temperature variation
■Low base-drive requirements
■Tight hFE range at operating collector current
■Fully insulated power package U.L. compliant
Applications
■Horizontal deflection output for TV
■Switch mode power supplies for CRT TV
Description
The MD1802FX is manufactured using Diffused
Collector in Planar Technology adopting new and
enhanced high voltage structure. The new MD
product series show improved silicon efficiency
bringing updated performance to the Horizontal
Deflection stage.
Figure 1. Internal schematic diagram
ISOWATT218FX
123
Table 1. Device summary
Order code Marking Package Packing
MD1802FX MD1802FX ISOWATT218FX Tube
www.st.com

Content MD1802FX
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Content
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

MD1802FX Electrical ratings
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1 Electrical ratings
Table 3. Thermal data
Table 2. Absolute maximum rating
Symbol Parameter Value Unit
VCES Collector-emitter voltage (VBE = 0) 1500 V
VCEO Collector-emitter voltage (IB= 0) 700 V
VEBO Collector-base voltage (IC= 0) 9 V
ICCollector current 10 A
ICM Collector peak current (tP< 5ms) 15 A
IBBase current 5 A
PTOT Total dissipation at Tc= 25°C 57 W
Vins
Insulation withstand voltage (RMS) from all three leads to
external heatsink 2500 V
Tstg Storage temperature -65 to 150
°C
TJMax. operating junction temperature 150
Symbol Parameter Value Unit
Rthj-case Thermal resistance junction-case _______________max 2.2 °C/W

Electrical characteristics MD1802FX
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2 Electrical characteristics
(Tcase = 25°C unless otherwise specified)
Table 4. Electrical characteristics
Symbol Parameter Test conditions Min. Typ. Max. Unit
ICES
Collector cut-off current
(VBE =0)
VCE = 1500V
VCE = 1500V; TC= 125°C
0.2
2
mA
mA
IEBO
Emitter cut-off current
(IC=0) VEB = 9V 1mA
VCEO(sus) (1)
Collector-emitter
sustaining voltage
(IC=0)
IC = 100mA 700 V
VCE(sat) (1)
1. Pulsed: Pulse duration = 300 ms, duty cycle 1.5 %
Collector-emitter
saturation voltage IC = 5A IB = 1.25A 1.5 V
VBE(sat) (1) Base-emitter saturation
voltage IC = 5A IB = 1.25A 1.2 V
hFE (1) DC current gain
IC = 1A VCE = 5V
IC = 5A VCE = 1V
IC = 5A VCE = 5V 5.5
23
5.5
8.5
ts
tf
Inductive load
Storage time
Fall time
IC = 4A IB(on) =500mA
VBE(off) = -2.7V fh= 16KHz
LBB(off) = 4.5µH
2.4
0.2
µs
µs

MD1802FX Electrical characteristics
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2.1 Electrical characteristics (curves)
Figure 2. Safe operating area 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

Electrical characteristics MD1802FX
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Figure 8. Output characteristics

MD1802FX Electrical characteristics
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2.2 Test circuits
Figure 9. Power losses and inductive load switching
Figure 10. Reverse biased safe operating area

Package mechanical data MD1802FX
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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

MD1802FX Package mechanical data
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Dim. mm.
Min. Typ Max.
A5.305.70
C2.803.20
D3.10 3.50
D1 1.802.20
E0.801.10
F0.65 0.95
F2 1.802.20
G10.30 11.50
G1 5.45
H15.30 15.70
L910.20
L2 22.8023.20
L326.30 26.70
L4 43.20 44.40
L5 4.304.70
L6 24.30 24.70
L7 14.60 15
N1.802.20
R3.804.20
Dia3.40 3.80
ISOWATT218FX mechanical data
7627132 B

Revision history MD1802FX
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4 Revision history
Table 5. Document revision history
Date Revision Changes
02-Aug-2006 1 Initial release.
14-Aug-2007 2 Complete document, added all curves (2.1: Electrical characteristics
(curves)

MD1802FX
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