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  Datasheet File OCR Text:
 SOT23 N-CHANNEL ENHANCEMENT MODE VERTICAL DMOS FET
ISSUE 3 - MARCH 1996 PARTMARKING DETAIL 7 - SS
BSS138
S
D G
ABSOLUTE MAXIMUM RATINGS.
PARAMETER Drain-Source Voltage Continuous Drain Current at Tamb=25C Pulsed Drain Current Gate-Source Voltage Power Dissipation at Tamb=25C Operating and Storage Temperature Range SYMBOL VDS ID IDM VGS Ptot Tj:Tstg VALUE 50 200 800 20 360 -55 to +150
SOT23 UNIT V mA mA V mW C
ELECTRICAL CHARACTERISTICS (at Tamb = 25C unless otherwise stated).
PARAMETER Drain-Source Breakdown Voltage Gate-Source Threshold Voltage Gate-Body Leakage Zero Gate Voltage Drain Current Static Drain-Source On-State Resistance (1) Forward Transconductance(1)(2) Input Capacitance (2) Common Source Output Capacitance (2) Reverse Transfer Capacitance (2) Turn-On Delay Time (2)(3) Rise Time (2)(3) Turn-Off Delay Time (2)(3) Fall Time (2)(3) SYMBOL MIN. BVDSS VGS(th) IGSS IDSS 50 0.5 1.5 100 0.5 5 100 3.5 120 50 25 8 10 10 15 25 MIN. MAX. UNIT CONDITIONS. V V nA A A nA mS pF pF pF ns ns ns ns VDD 30V, ID=280mA VDS=25V, VGS=0V, f=1MHz ID=0.25mA, VGS=0V ID=1mA, VDS= VGS VGS= 20V, VDS=0V VDS=50V, VGS=0 VDS=50V, VGS=0V, T=125C(2) VDS=20V, VGS=0 VGS=5V,ID=200mA VDS=25V,ID=200mA
RDS(on) gfs Ciss Coss Crss td(on) tr td(off) tf
(1) Measured under pulsed conditions. Width=300s. Duty cycle 2% (2) Sample test. (3) Switching times measured with 50 source impedance and <5ns rise time on a pulse generator
3 - 72
BSS138
TYPICAL CHARACTERISTICS
IDS -Drain Source Current (A)
1.0
VGS =10V 5V 4.5V 4V
100
VGS =2.5V 3V 3.5V 4V
3.5V
0.6
3V
RDS(on) - Drain Source On Resistance (Ohms)
0.8
10
0.4
2.5V
0.2
80s Pulsed Test
5V 7V 10V
2V
0 0 1 2 3 4 5
1.0 0.01 0.1 1.0
VDS -Drain Source Voltage (Volts)
ID-Drain Current (Amperes)
Saturation Characteristics
Typical On Resistance vs. Drain Current
gfs -Forward Transconductance (mS)
500
gfs -Forward Transconductance (mS)
500
400
400
300
VDS =25V 80s Pulsed Test
300
VDS =25V 80s Pulsed Test
200
200
100
100
0 0 0.2 0.4 0.6 0.8 1.0
0 0 2 4 6 8 10
ID -Drain Current (Amperes)
VGS -Gate Source Voltage (Volts)
Typical Transconductance vs. Drain Current
100
Ciss Crss
Typical Transconductance vs. Gate - Source Voltage
Normalised RDS(on) And VGS(th)
1.8 1.6 1.4 1.2 1.0 0.8 0.6 -40 0 40 80
0
Coss
NOTE:-VGS =0V F=1MHz Ciss
RDS(on) AT VGS =5V ID=200mA
C-Capacitance (pF)
10
Coss
VGS(th) AT ID=1mA VDS=VGS
Crss
1 0.1 1 10 100 120 160
VDS -Drain Source Voltage (Volts)
T-Temperature ( C)
Typical Capacitance vs. Drain - Source Voltage
Normalised RDS(on) And VGS(th) vs. Temperature
3 - 73
BSS138
TYPICAL CHARACTERISTICS
VGS -Gate-Source Voltage (Volts)
14 12 10 8 6 4 2 0 0 0.2 0.4 0.6 0.8 1.0 1.2
ID =200mA
VD
D
1.0
IDS - Drain Source Current (A)
0V =2
0.8
80s Pulsed Test VDS =10V
V 30
V 50
0.6 0.4 0.2 0 0 1 2 3 4 5
Q-Charge (nC)
VGS - Gate Source Voltage (V)
Typical Gate Charge vs. Gate-Source Voltage
VSD - Source Drain Voltage (V)
1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 100A 1mA 10mA
80s Pulsed Test VGS =0
Typical Transfer Characteristics
100mA
1A
IDS - Drain Source Current
Typical Diode Forward Voltage
3 - 74


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