ST901T
STD901T
High voltage NPN Darlington transistor for ignition coil
Features
■
■
■
High voltage special Darlington structure
Very rugged bipolar technology
High DC current gain
Application
■
High ruggedness electronic ignition for small engines
Description
The device is a high voltage NPN transistor in monolithic special Darlington configuration designed for applications such as electronic ignition for small engines (scooters, lawnmowers, chainsaws).
TAB
DPAK
1
3
TAB
TO-220
1
2
3
Figure 1.
Internal schematic diagram
C
(2, TAB)
B
(1)
E (3)
Table 1.
Device summary
Order code
ST901T
STD901T
Marking
901T
D901T
February 2011 Doc ID 4510 Rev 5
Packages
TO-220
DPAK
Packaging
Tube
Tape and reel
1/12
www.st.com
12
3
4
1
2
Contents
Contents
ST901T, STD901T
Electrical ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1
Electrical characteristics (curves) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2/12 Doc ID 4510 Rev 5
ST901T, STD901T
1
Electrical ratings
Table 2.
Symbol
Absolute maximum ratings
Parameter
V
CES
Collector-emitter voltage (V
BE
= 0)
V
CEO
Collector-emitter voltage (I
B
= 0)
V
EBO
Emitter-base voltage (I
C
= 0)
I
C
Collector peak current (tp < 5 ms) I
CM
I
B
I
BM
P tot
Base peak current (tp < 5 ms)
Total dissipation at T
C
= 25 °C for ST901T
P tot
T stg
T
J
Total dissipation at T
C
= 25 °C for STD901T
Storage temperature
Max. operating junction temperature
Table 3.
Symbol
R thj-case
R thj-case
Thermal data
Parameter
Thermal resistance junction-case max for ST901T
Thermal resistance junction-case max for STD901T
Electrical ratings
Value Unit
500 V
350 V
5 V
4
8
0.5
2.5
100
35
-65 to 150
150
A
A
A
A
W
W
°C
°C
Value
1.25
3.57
Unit
°C/W
°C/W
Doc ID 4510 Rev 5 3/12
Electrical characteristics
2 Electrical characteristics
ST901T, STD901T
(T case
= 25°C unless otherwise specified).
Table 4.
Electrical characteristics
Symbol Parameter Test conditions
I
I
CES
CEO
Collector cut-off current
(I
E
= 0)
V
CE
= 500 V
V
CE
= 500 V T case
=125 °C
Collector cut-off current
(I
B
= 0)
V
CE
= 350 V
V
CE
= 350 V T case
= 125 °C
I
EBO
Emitter cut-off current
(I
C
= 0)
V
CEO(sus)
(1)
V
CE(sat)
(1)
Collector-emitter sustaining voltage
(I
B
= 0 )
Collector-emitter saturation voltage
I
I
V
C
C
EB
= 5 V
= 10 mA
= 2 A I
B
= 20 mA
Min.
Typ.
Max.
Unit
100
500
100
500
10
350
V
BE(sat)
(1) h
FE
Base-emitter saturation voltage
I
C
= 2 A I
B
= 20 mA
Functional test
I
C
= 2 A V
CE
= 2 V
I
C
= 4 A V
CE
= 2 V
V
CC
= 24 V V clamp
= 350 V
L = 4 mH t s t f
Inductive load storage time fall time
I
I
V
CC
= 12 V L = 4 mH
C
= 2 A V
B(on)
1.
Pulse test: pulse duration
≤ 300 µs, duty cycle ≤ 2 % clamp
= 20 mA V
= 250 V
BE(off)
= -3 V
1800
500
4
15
1.5
2
1.8
3800
µA
µA
µA
µA
µA
V
V
V
A
µs
µs
4/12 Doc ID 4510 Rev 5
ST901T, STD901T Electrical characteristics
characteristics
Figure 2.
Collector-emitter saturation voltage (h
FE
= 100)
AM08502v1
V
CE(sat)
(V)
Figure 3.
Base-emitter saturation voltage (h
FE
= 100)
AM08503v1
V
BE(sat)
(V)
T
J
= -40
°C
1.4
1.8
T
J
= -40 °C
1.2
1.6
1
0.8
1.4
1.2
T
J
= 25
°C
T
J
= 125
°C
T
J
= 25
°C
0.6
1
T
J
= 125 °C
0.4
0.1
1
I
C
0.8
0.1
1
I
C
(A)
Figure 4.
DC current gain (V
CE
= 2 V) Figure 5.
DC current gain (V
CE
= 5 V)
AM08504v1 AM08508v1 h
FE
T
J
= 25 °C T
J
= 125 °C T
J
= 25 °C
T
J
= 125
°C
1000
1000
T
J
= -40
°C
T
J
= -40 °C
100
0.1
1
I
C
(A)
100
0.1
1
I
C
(A)
Doc ID 4510 Rev 5 5/12
Package mechanical data
3 Package mechanical data
ST901T, STD901T
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK
®
packages, depending on their level of environmental compliance. ECOPACK
® specifications, grade definitions and product status are available at: www.st.com. ECOPACK is an ST trademark.
6/12 Doc ID 4510 Rev 5
ST901T, STD901T
D
D1
E e
A b b1 c e1
F
H1
J1
L
Table 5.
Dim.
TO-220 type A mechanical data
Min.
4.40
0.61
1.14
0.48
15.25
L1
L20
L30
∅
P
Q
6.20
2.40
13
3.50
10
2.40
4.95
1.23
3.75
2.65
mm
Typ.
1.27
16.40
28.90
Package mechanical data
3.85
2.95
Max.
4.60
0.88
1.70
0.70
15.75
10.40
2.70
5.15
1.32
6.60
2.72
14
3.93
Doc ID 4510 Rev 5 7/12
Package mechanical data
Figure 6.
TO-220 type A drawing
ST901T, STD901T
0015988_typeA_Rev_S
8/12 Doc ID 4510 Rev 5
ST901T, STD901T
H
L
L1
L2
L4
D1
E
E1 e e1
R
V2 b4 c c2
D
A
A1
A2 b
Table 6.
Dim.
DPAK (TO-252) mechanical data
Min.
5.20
0.45
0.48
6.00
2.20
0.90
0.03
0.64
6.40
4.40
9.35
1
0.60
0°
mm
Typ.
5.10
4.70
2.28
2.80
0.80
0.20
Package mechanical data
1
8°
Max.
5.40
0.60
0.60
6.20
2.40
1.10
0.23
0.90
6.60
4.60
10.10
Doc ID 4510 Rev 5 9/12
Package mechanical data
Figure 7.
TO-252 (DPAK) drawings
ST901T, STD901T
0068772_G
10/12 Doc ID 4510 Rev 5
ST901T, STD901T
Table 7.
Date
Document revision history
14-Oct-2004
15-Jan-2005
25-Feb-2005
13-Oct-2005
11-Feb-2011
Revision
1
2
3
4
5
Changes
First release.
DC current gain range has been modified.
Added four drawings on page 3.
Updated package mechanical data
Inserted new order code STD901T
Revision history
Doc ID 4510 Rev 5 11/12
ST901T, STD901T
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12/12 Doc ID 4510 Rev 5
