UNISONIC TECHNOLOGIES CO., LTD
BU931
NPN POWER DARLINGTON
FEATURES
* High operating junction temperature
* High voltage ignition coil driver
* Very rugged bipolar technology
NPN SILICON TRANSISTOR
1
TO-3P
INTERNAL SCHEMATIC DIAGRAM
1
TO-263
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
BU931L-T3P-T
BU931G-T3P-T
BU931L-TQ2-T
BU931G-TQ2-T
BU931L-TQ2-R
BU931G-TQ2-R
Package
TO-3P
TO-263
TO-263
Pin Assignment
1
2
3
B
C
E
B
C
E
B
C
E
Packing
Tube
Tube
Tape Reel
BU931L-T3P-T
(1)Packing Type
(2)Package Type
(3)Lead Plating
(1) T: Tube, R: Tape Reel
(2) T3P: TO-3P, TQ2: TO-263
(3) L: Lead Free, G: Halogen Free
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Copyright © 2013 Unisonic Technologies Co., Ltd
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BU931
ABSOLUTE MAXIMUM RATINGS
(Ta=25°C)
NPN SILICON TRANSISTOR
PARAMETER
SYMBOL
RATINGS
UNIT
Collector-Emitter Voltage (V
BE
=0)
V
CES
500
V
Collector-Emitter Voltage (I
B
=0)
V
CEO
400
V
Emitter-Base Voltage (I
C
=0)
V
EBO
5
V
Collector Current
I
C
15
A
Collector Peak Current
I
CM
30
A
Base Current
I
B
1
A
Base Peak Current
I
BM
5
A
Power Dissipation (T
C
=25°C)
TO-3P
135
W
P
D
TO-263
125
W
Junction Temperature
T
J
+200
°C
Storage Temperature
T
STG
-65 ~ +200
°C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
THERMAL DATA
PARAMETER
Junction to Case
TO-3P
TO-263
SYMBOL
θ
JC
RATING
1.1
1.2
UNIT
°C/W
°C/W
ELECTRICAL CHARACTERISTICS
PARAMETER
Collector Cut-off Current (I
B
=0)
Emitter Cut-off Current (I
C
=0)
Collector-Emitter Saturation Voltage (Note)
SYMBOL
I
CEO
I
EBO
V
CE(SAT)
TEST CONDITIONS
V
CE
= 450 V
V
CE
=450V, T
J
=125°C
V
EB
= 5V
I
C
= 7A, I
B
=70mA
I
C
= 8A, I
B
=100mA
I
C
= 10A, I
B
=250mA
I
C
= 7A, I
B
=70mA
I
C
= 8A, I
B
=100mA
I
C
= 10A, I
B
=250mA
I
C
= 5A, V
CE
=10V
I
F
= 10 A
V
CC
=24V, V
clamp
=400V
L=7mH
V
CC
= 12V, V
clamp
=300V
L=7mH
I
C
=7A, I
B
=70mA
V
BE
=0, R
BE
=47Ω
MIN
TYP MAX UNIT
100
μA
0.5
mA
20
mA
1.6
V
1.8
1.8
2.2
2.4
2.5
300
2.5
8
15
0.5
V
A
μs
μs
V
V
V
V
V
Base-Emitter Saturation Voltage (Note)
DC Current Gain
Diode Forward Voltage
Functional Test
V
BE(SAT)
h
FE
V
F
Inductive Load Storage Time / Fall Time
t
S
t
F
Note: Pulsed: Pulse duration = 300μs, duty cycle 1.5 %
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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BU931
TEST CIRCUITS
24V
L=7mH
V
Z
Driver and
current limiting
circuit
NPN SILICON TRANSISTOR
V
D
12V
7mH
T.U.T
100Ω
0.22µF
V
IN
T.U.T
47Ω
0.2Ω
V
clamp
Functional Test Circuit
Switching Time Test Circuit
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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TYPICAL CHARACTERISTICS
Collector Emitter Saturation Voltage
vs. Collector Current
h
FE
=50
Collector-Emitter Saturation
Voltage, V
CE(SAT)
(V)
3
NPN SILICON TRANSISTOR
Collector-Emitter Saturation Voltage,
V
CE(SAT)
(V)
Collector Emitter Saturation Voltage
vs. Collector Current
h
FE
=100
3
2
125°C
25°C
-40°C
2
125°C
25°C
-40°C
1
1
0
1
2
4
6
0
1
2
4
6
Collector Current, I
C
(A)
Base Emitter Saturation Voltage vs.
Collector Current
h
FE
=50
3
Collector Current, I
C
(A)
Base Emitter Saturation Voltage vs.
Collector Current
Base-Emitter Saturation Voltage,
V
BE(SAT)
(V)
h
FE
=100
3
Base-Emitter Saturation Voltage,
V
BE(SAT)
(V)
125°C
25°C
-40°C
2
2
125°C
25°C
-40°C
1
1
0
1
2
4
6
0
1
2
4
6
Collector Current, I
C
(A)
DC Current Gain vs. Collector Current
8
6
4
Collector Current, I
C
(A)
V
CE
=2V
DC Current Gain, h
FE
2
25°C
10
2
8
6
4
2
10
10
-1
2
1
Collector Current, I
C
(A)
4
6
8
2
4
6
8
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www.unisonic.com.tw
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BU931
NPN SILICON TRANSISTOR
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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