High voltage ignition coil driver power Darlington transistors Ve
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BU931 BU931P, BU931T
High voltage ignition coil driver power Darlington transistors
Very rugged Bipolar technology High operating junction temperature Wide range packages
Applications
High ruggedness electronic ignitions TO-3 TO-247
Description
devices bipolar Darlington transistors manufactured using Multi-Epitaxial Planar technology. They have been properly designed used automotive environment electronic ignition power actuators.
TO-220
Figure
Internal schematic diagrams
TO-3
TO-220 TO-247
Table
Device summary
Marking BU931 BU931P BU931T Package TO-3 TO-247 TO-220 Packaging Tray Tube Tube
Order codes BU931 BU931P BU931T
November 2008
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www.st.com
Content
BU931, BU931P, BU931T
Content
Electrical ratings Electrical characteristics
Electrical characteristics (curves)
Test circuits Package mechanical data Revision history
2/13
BU931, BU931P, BU931T
Electrical ratings
Electrical ratings
Table
Symbol VCES VCEO VEBO PTOT Tstg
Absolute maximum ratings
Value Parameter BU931 Collector-emitter voltage (VBE Collector-emitter voltage Emitter-base voltage Collector current Collector peak current Base current Base peak current Total dissipation Storage temperature Max. operating junction temperature BU931P BU931T Unit
Table
Symbol
Thermal data
Value Parameter BU931 BU931P BU931T °C/W Thermal resistance junction-case max. Unit
Rthj-case
3/13
Electrical characteristics
BU931, BU931P, BU931T
Electrical characteristics
(Tcase unless otherwise specified)
Table
Symbol ICES ICEO IEBO
Electrical characteristics
Parameter Collector cut-off current (VBE Collector cut-off current Emitter cut-off current Test conditions Min. Typ. Max. Unit
VCEO(sus)(1)
Collector-emitter Vclamp sustaining voltage Figure Collector-emitter saturation voltage Vclamp Figure
VCE(sat)
VBE(sat) hFE(1)
Base-emitter saturation voltage current gain Diode forward voltage Functional test
Inductive Load Storage time Fall time
Vclamp Figure
Pulsed duration duty cycle 1.5%
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BU931, BU931P, BU931T
Electrical characteristics
Figure
Electrical characteristics (curves)
Safe operating area BU931 BU931P Figure Safe operating area BU931T
Figure
current gain
Figure
Switching time inductive load
Figure
Collector-emitter saturation voltage Figure hFE=
Collector-emitter saturation voltage hFE=
5/13
Electrical characteristics Figure Collector-emitter saturation voltage Figure
BU931, BU931P, BU931T Base-emitter saturation voltage hFE=
Figure Base-emitter saturation voltage hFE=
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BU931, BU931P, BU931T
Test circuits
Test circuits
Figure Functional test wafeforms
Figure Functional test circuit
Figure Switching time test circuit
Figure Sustaining voltage test circuit
7/13
Package mechanical data
BU931, BU931P, BU931T
Package mechanical data
order meet environmental requirements, offers these devices ECOPACK® packages. These packages have lead-free second level interconnect category second level interconnect marked package inner label, compliance with JEDEC Standard JESD97. maximum ratings related soldering conditions also marked inner label. ECOPACK trademark. ECOPACK specifications available www.st.com
8/13
BU931, BU931P, BU931T
Package mechanical data
TO-3 mechanical data
DIM. min. 11.00 0.97 1.50 8.32 19.00 10.70 16.50 25.00 4.00 38.50 30.00 max. 13.10 1.15 1.65 8.92 20.00 11.10 17.20 26.00 4.09 39.30 30.30
0015923C
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Package mechanical data
BU931, BU931P, BU931T
TO-247 Mechanical data
Min. 4.85 2.20 0.40 19.85 15.45 5.45 14.20 3.70 18.50 3.55 4.50 5.50 3.65 5.50 14.80 4.30 Max. 5.15 2.60 1.40 2.40 3.40 0.80 20.15 15.75
Dim.
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BU931, BU931P, BU931T
Package mechanical data
TO-220 mechanical data
4.40 0.61 1.14 0.48 15.25 1.27 2.40 4.95 1.23 6.20 2.40 3.50 16.40 28.90 3.75 2.65 3.85 2.95 0.147 0.104 10.40 2.70 5.15 1.32 6.60 2.72 3.93 0.393 0.094 0.194 0.048 0.244 0.094 0.511 0.137 4.60 0.88 1.70 0.70 15.75 0.173 0.024 0.044 0.019
inch 0.181 0.034 0.066 0.027 0.62 0.050 0.409 0.106 0.202 0.051 0.256 0.107 0.551 0.154 0.645 1.137 0.151 0.116
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Revision history
BU931, BU931P, BU931T
Revision history
Table
Date 21-Jun-2004 18-Nov-2008
Document revision history
Revision Package changed from TO-218 TO-247 BU931P. Inserted type TO-220 (BU931T). Changes
12/13
BU931, BU931P, BU931T
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