Diodes DMS2120LFWB - Manual (Page 3)

SBR is a registered trademark of Diodes Incorporated.
DMS2120LFWB
Document number: DS31667 Rev. 5 - 2
3 of 7
www.diodes.com
September 2012
© Diodes Incorporated
DMS2120LFWB
NEW PROD
UC
T
Q1, P-CHANNEL MOSFET
0 1 2 3 4 5
Fig. 1 Typical Output Characteristics
-V , DRAIN-SOURCE VOLTAGE (V)
DS
0
2
4
6
8
10
-I
, D
R
AI
N
C
U
R
R
E
N
T
(A
)
D
V = -1.5V
GS
V = -2.0V
GS
V = -2.5V
GS
V = -4.5V
GS
V = -8.0V
GS
V = -1.0V
GS
V = -1.2V
GS
0.5 1 1.5 2
0
2
4
6
8
10
-I
, D
R
AI
N
C
U
R
R
EN
T
(A
)
D
Fig. 2 Typical Transfer Characteristics
-V , GATE SOURCE VOLTAGE (V)
GS
V = -5V
DS
T = -55°C
A
T = 25°C
A
T = 85°C
A
T = 150°C
A
T = 125°C
A
0
0.02
0.04
0.06
0.08
0.1
0.12
0.14
0 1 2 3 4 5 6 7 8
Fig. 3 Typical On-Resistance
vs. Drain Current and Gate Voltage
-I , DRAIN CURRENT (A)
D
R
, D
R
AI
N
-S
O
U
R
C
E
O
N
-R
ES
IS
T
A
N
C
E (
)
DS
(O
N)
Ω
V = -2.5V
GS
V = -4.5V
GS
V = -1.8V
GS
0
0.02
0.04
0.06
0.08
0.1
0.12
0.14
0 1 2 3 4 5 6 7 8
-I , DRAIN CURRENT (A)
Fig. 4 Typical Drain-Source On-Resistance
vs. Drain Current and Temperature
D
R
, D
R
AI
N
-S
O
U
R
C
E
O
N
-R
ES
IS
T
A
N
C
E (
)
DS
(O
N
)
Ω
T = -55°C
A
T = 25°C
A
T = 85°C
A
T = 125°C
A
T = 150°C
A
Fig. 5 On-Resistance Variation with Temperature
-50 -25 0 25 50 75 100 125 150
T , JUNCTION TEMPERATURE (°C)
J
0.6
0.8
1.0
1.2
1.4
1.6
R
, D
R
AI
N-
S
O
U
R
C
E
ON
-R
E
S
IS
T
A
N
C
E
(N
OR
MA
L
IZ
E
D
)
DS
(O
N)
V = -4.5V
I = -5A
GS
D
V = -2.5V
I = -2A
GS
D
0.03
0.05
0.07
0.09
0.11
Fig. 6 On-Resistance Variation with Temperature
-50 -25 0 25 50 75 100 125 150
T , JUNCTION TEMPERATURE (°C)
J
R
, DRA
IN-
S
OURCE
ON-
R
ES
IST
A
NCE
(
)
DS
(O
N)
Ω
V = -4.5V
I = -5A
GS
D
V = -2.5V
I = -2A
GS
D