BSS138
0.6
T
j
= 25
°
C
V
GS
= 3.5V
0.8
I
D
, DRAIN-SOURCE CURRENT (A)
0.7
0.6
0.5
150
°
C
V
DS
= 1V
-55
°
C
I
D
, DRAIN-SOURCE CURRENT (A)
0.5
V
GS
= 3.25V
25
°
C
0.4
V
GS
= 3.0V
0.3
V
GS
= 2.75V
0.4
0.3
0.2
0.1
0
0
0.2
V
GS
= 2.5V
0.1
0
3
4
5
6
7
8
9 10
V
DS
, DRAIN-SOURCE VOLTAGE (V)
Fig. 1 Drain-Source Current vs. Drain-Source Voltage
0
1
2
0.5 1
2.5
1.5
2
3 3.5
V
GS
, GATE-SOURCE VOLTAGE (V)
Fig. 2 Transfer Characteristics
4
4.5
2.45
2.25
2.05
1.85
1.65
1.45
1.25
1.05
0.85
0.65
-55
V
GS
= 4.5V
I
D
= 0.075A
V
GS
= 10V
I
D
= 0.5A
2
V
GS(th)
, GATE THRESHOLD VOLTAGE (V)
1.8
1.6
I
D
= 1.0mA
R
DS(ON)
, NORMALIZED DRAIN-SOURCE
ON-RESISTANCE (
Ω
)
1.4
1.2
1
0.8
0.6
0.4
0.2
-25
5
35
65
95
125 155
T
j
, JUNCTION TEMPERATURE (°C)
Fig. 4 Gate Threshold Voltage vs. Junction Temperature
0
-55
-5
45
145
95
T
j
, JUNCTION TEMPERATURE (°C)
Fig. 3 Drain-Source On-Resistance vs. Junction Temperature
R
DS(ON)
, DRAIN-SOURCE ON-RESISTANCE (
Ω
)
150
°
C
R
DS(ON)
, DRAIN-SOURCE ON-RESISTANCE (
Ω
)
8
7
6
5
4
3
-55
°
C
25
°
C
V
GS
= 2.5V
9
8
7
6
5
4
3
2
1
0
0.1
0.15
0.25
0.2
I
D
, DRAIN-CURRENT (A)
Fig. 6 Drain-Source On-Resistance vs. Drain-Current
0
0.05
-55
°
C
25
°
C
V
GS
= 2.75V
150
°
C
2
1
0
0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16
I
D
, DRAIN-CURRENT (A)
Fig. 5 Drain-Source On-Resistance vs. Drain-Current
0
BSS138
Document number: DS30144 Rev. 13 - 2
2 of 4
www.diodes.com
May 2008
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