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Low voltage fast-switching PNP power transistor
Features
■ Very low collector to emitter saturation voltage
■ High current gain characteristic
■ Fast-switching speed
■ Surface-mounting DPAK (TO-252) power
package in tape & reel (suffix “T4)
■ Through-hole IPAK (TO-251) power package
in tube (suffix “-1”)
Description
The device is manufactured in PNP Planar
technology by using a “Base Island” layout. The
resulting transistor shows exceptional high gain
performance coupled with very low saturation
voltage.
STD2805
Preliminary Data
3
1
TO-252
DPAK
(suffix “T4”) (suffix “-1”)
Figure 1. Internal schematic diagram
TO-251
IPAK
3
2
1
Applications
■ CCFL drivers
■ Voltage regulators
■ Relay drivers
■ High efficiency low voltage switching
applications
Table 1. Devices summary
Order codes Marking Package Packaging
STD2805T4 D2805 DPAK Tape & reel
STD2805-1 D2805 IPAK Tube
June 2007 Rev 1 1/9
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to
change without notice.
www.st.com
9
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Electrical ratings STD2805
1 Electrical ratings
Table 1. Absolute maximum rating
Symbol Parameter Value Unit
V
V
V
I
P
T
Collector-base voltage (IE =0) -60 V
CBO
Collector-emitter voltage (IB =0) -60 V
CEO
Emitter-base voltage (IC =0) -6 V
EBO
I
Collector current -5 A
C
Collector peak current (tP < 5ms) -10 A
CM
I
Base current -2 A
B
Total dissipation at Tc ≤ 25°C 15 W
tot
Storage temperature -65 to 150 °C
stg
T
Max. operating junction temperature 150 °C
J
Table 2. Thermal data
Symbol Parameter Value Unit
R
thj-case
Thermal resistance junction-case __max 8.33 °C/W
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STD2805 Electrical characteristics
2 Electrical characteristics
(T
= 25°C unless otherwise specified)
case
Table 3. Electrical characteristics
Symbol Parameter Test Conditions Min. Typ. Max. Unit
I
CBO
I
V
(BR)CBO
V
(BR)CEO
V
(BR)EBO
V
CE(sat)
V
BE(sat)
h
FE
C
EBO
f
T
CBO
Collector cut-off current
=0)
(I
E
Emitter cut-off current
=0)
(I
C
Collector-base
breakdown voltage
(I
= 0)
E
Collector-emitter
breakdown voltage
(I
= 0)
B
Emitter-base breakdown
voltage (I
Collector-emitter
(1)
C
saturation voltage
Base-emitter saturation
(1)
voltage
(1)
DC current gain
Transition frequency
Collector-base
capacitance
= 0)
= -60V
V
CB
= -5V
V
EB
I
=-100µA
C
I
=-1mA
C
=-100µA
I
E
I
=-100mA _ IB =-5mA
C
=-2A _ _ IB =-50mA
I
C
I
=-3A ___ IB =-150mA
C
I
=-5A ___ IB =-200mA
C
I
=-2A _ _ IB =-50mA
C
=-100mA V
I
C
=-5A V
I
C
I
=-10A V
C
V
=-10V IC =-50mA
CE
V
=-10V f =1MHz
CB
CE
CE
CE
=-2V
=-2V
=-2V
0.1 µA
0.1 µA
-60 V
-60 V
-6 V
mV
mV
mV
mV
-150
-200
-50
-300
-400
-600
-0.9 -1.2 V
200
400
85
20
150 MHz
60 pF
t
ON
t
t
Resistive load
Turn-on time
s
f
Storage time
Fall time
= -30V IC = -1A
V
CC
I
=-I
B1
B2
Note (1) Pulsed duration = 300 µs, duty cycle ≤1.5%
= -0.1A
80
600
70
ns
ns
ns
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Page 4
Electrical characteristics STD2805
2.1 Test circuit
Figure 2. Resistive load switching test circuit
1) Fast electronic switch
2) Non-inductive resistor
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STD2805 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 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
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Package mechanical data STD2805
TO-252 (DPAK) MECHANICAL DATA
DIM.
A 2.20 2.40 0.087 0.094
A1 0.90 1.10 0.035 0.043
A2 0.03 0.23 0.001 0.009
B 0.64 0.90 0.025 0.035
B2 5.20 5.40 0.204 0.213
C 0.45 0.60 0.018 0.024
C2 0.48 0.60 0.019 0.024
D 6.00 6.20 0.236 0.244
E 6.40 6.60 0.252 0.260
G 4.40 4.60 0.173 0.181
H 9.35 10.10 0.368 0.398
L2 0.8 0.031
L4 0.60 1.00 0.024 0.039
V2 0
MIN. TYP. MAX. MIN. TYP. MAX.
o
mm inch
o
8
o
0
o
0
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P032P_B
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STD2805 Package mechanical data
TO-251 (IPAK) MECHANICAL DATA
DIM.
A 2.20 2.40 0.087 0.094
A1 0.90 1.10 0.035 0.043
A3 0.70 1.30 0.028 0.051
B 0.64 0.90 0.025 0.035
B2 5.20 5.40 0.204 0.213
B3 0.85 0.033
B5 0.30 0.012
B6 0.95 0.037
C 0.45 0.60 0.018 0.024
C2 0.48 0.60 0.019 0.024
D 6.00 6.20 0.237 0.244
E 6.40 6.60 0.252 0.260
G 4.40 4.60 0.173 0.181
H 15.90 16.30 0.626 0.642
L 9.00 9.40 0.354 0.370
L1 0.80 1.20 0.031 0.047
L2 0.80 1.00 0.031 0.039
V1 10
MIN. TYP. MAX. MIN. TYP. MAX.
mm inch
o
10
o
P032N_E
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Revision history STD2805
4 Revision history
Table 4. Revision history
Date Revision Changes
26-Jun-2007 1 Initial release.
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STD2805
y
y
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