Bss127 – Diodes BSS127 User Manual
Page 4
BSS127
Document number: DS35476 Rev. 6 - 2
4 of 6
January 2013
© Diodes Incorporated
BSS127
0
100
200
300
400
500
0
0.005
0.01
0.015
0.02
0.025
V , GATE-SOURCE VOLTAGE (V)
Figure 7 Typical On-Resistance vs. Drain Current and Gate Voltage
GS
R
, DRAI
N
-S
OURCE
ON-
R
ESI
S
TA
NCE
(
)
DS
(O
N)
Ω
0
20
40
60
80
100
120
140
160
180
200
2
3
4
5
6
7
8
9
10
V , GATE-SOURCE VOLTAGE (V)
Figure 8 Typical Transfer Characteristic
GS
R
( ) Ave @ I = 20mA
DS(ON)
D
Ω
R
, D
R
AI
N-
S
O
U
R
C
E
O
N-
R
ESI
S
TAN
C
E (
)
DS
(O
N)
Ω
V , DRAIN-SOURCE VOLTAGE (V)
DS
Figure 9 Typical Junction Capacitance
C
, C
A
P
A
C
IT
A
N
C
E (
p
F)
T
0
5
10
15
20
25
30
35
40
45
50
0
5
10
15
20
25
30
35
40
f = 1MHz
C
ISS
C
OSS
C
RSS
Q - (nC)
G
Figure 10 Gate Charge Characteristics
V (
V
)
GS
0
2
4
6
8
10
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
1
V
=25V, I =250mA
DS
D
0.001
0.01
0.1
1
0.00001
0.0001
0.001
0.01
0.1
1
10
100
1000
t1, PULSE DURATION TIME (sec)
Figure 11 Transient Thermal Resistance
r(
t)
, T
R
A
N
SI
EN
T T
H
ERM
A
L
R
E
SIS
TA
N
C
E
D = 0.9
D = 0.7
D = 0.5
D = 0.3
D = 0.1
D = 0.05
D = 0.02
D = 0.01
D = 0.005
D = Single Pulse
R
(t)=r(t) * R
R
=164C/W
Duty Cycle, D=t1/ t2
θ
θ
θ
JA
JA
JA