BU508AW_0708 ST Microelectronics, Inc., BU508AW_0708 Datasheet

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BU508AW_0708

Manufacturer Part Number
BU508AW_0708
Description
High Voltage NPN Power Transistor for Standard Definition CRT Display
Manufacturer
ST Microelectronics, Inc.
Datasheet
Features
Applications
Description
The BU508AW is manufactured using diffused
collector in planar technology adopting new and
enhanced high voltage structure for updated
performance to the horizontal deflection stage.
Table 1.
August 2007
Order code
State-of-the-art technology:
– Diffused collector “Enhanced generation”
Stable performances versus operating
temperature variation
Low base-drive requirement
Tight h
High ruggedness
TO-247 semi-insulated power package
Horizontal deflection output for CRT TV
Switch mode power supplies for CRT TV
BU508AW
FE
Device summary
range at operating collector current
BU508AW
Marking
High voltage NPN power transistor for standard
Rev 2
Package
TO-247
Figure 1.
Internal schematic diagram
definition CRT display
TO-247
Packaging
BU508AW
1
Tube
2
3
www.st.com
1/11
11

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BU508AW_0708 Summary of contents

Page 1

Features ■ State-of-the-art technology: – Diffused collector “Enhanced generation” ■ Stable performances versus operating temperature variation ■ Low base-drive requirement ■ Tight h range at operating collector current FE ■ High ruggedness ■ TO-247 semi-insulated power package Applications ■ Horizontal ...

Page 2

Content Content 1 Electrical ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 3

BU508AW Electrical ratings 1 Table 2. Absolute maximum rating Symbol V Collector-emitter voltage (V CES V Collector-emitter voltage (I CEO V Collector-base voltage (I EBO I Collector current C I Collector peak current ( Base current B P ...

Page 4

Electrical characteristics 2 Electrical characteristics (T = 25°C unless otherwise specified) case Table 4. Electrical characteristics Symbol Collector cut-off current I CES (V BE Emitter cut-off current I EBO (I =0) C Collector-emitter (1) sustaining voltage V CEO(sus) (I =0) ...

Page 5

BU508AW 2.1 Electrical characteristics (curves) Figure 2. Safe operating area Figure 4. DC current gain Figure 6. Collector-emitter saturation voltage Electrical characteristics Figure 3. Derating curve Figure 5. DC current gain Figure 7. Base-emitter saturation voltage 5/11 ...

Page 6

Electrical characteristics Figure 8. Output characteristics 6/11 BU508AW ...

Page 7

BU508AW 2.2 Test circuits Figure 9. Power losses and inductive load switching Figure 10. Reverse biased safe operating area Electrical characteristics 7/11 ...

Page 8

Package mechanical data 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 ...

Page 9

BU508AW DIM øP øR S TO-247 MECHANICAL DATA mm. MIN. TYP MAX. 4.85 5.15 2.20 2.60 1.0 1.40 2.0 2.40 3.0 3.40 0.40 0.80 19.85 20.15 15.45 15.75 ...

Page 10

Revision history 4 Revision history Table 5. Document revision history Date 02-Mar-2007 14-Aug-2007 10/11 Revision 1 Initial release. Complete document, added all curves 2 (curves) BU508AW Changes (2.1: Electrical characteristics ...

Page 11

BU508AW Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at ...

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