FDT3612
100V N-Channel PowerTrench MOSFET
General Description
Features
This N-Channel MOSFET has been designed
specifically to improve the overall efficiency of DC/DC
converters using either synchronous or conventional
switching PWM controllers.
• 3.7 A, 100 V. RDS(ON) = 120 mΩ @ VGS = 10 V
RDS(ON) = 130 mΩ @ VGS = 6 V
• Fast switching speed
These MOSFETs feature faster switching and lower
gate charge than other MOSFETs with comparable
RDS(ON) specifications. The result is a MOSFET that is
easy and safer to drive (even at very high frequencies),
and DC/DC power supply designs with higher overall
efficiency.
• Low gate charge (14nC typ)
• High performance trench technology for extremely
low RDS(ON)
• High power and current handling capability in a
widely used surface mount package
Applications
• DC/DC converter
• Motor driving
D
D
D
D
S
S
D
G
SOT-223
G
D
SOT-223 *
G
G
S
(J23Z)
Absolute Maximum Ratings
Symbol
S
TA=25oC unless otherwise noted
Parameter
Ratings
Units
VDSS
Drain-Source Voltage
100
V
VGSS
Gate-Source Voltage
±20
V
ID
Drain Current
(Note 1a)
3.7
A
PD
Maximum Power Dissipation
(Note 1a)
3.0
(Note 1b)
1.3
– Continuous
– Pulsed
20
(Note 1c)
TJ, TSTG
W
1.1
–55 to +150
°C
(Note 1a)
42
°C/W
(Note 1)
12
°C/W
Operating and Storage Junction Temperature Range
Thermal Characteristics
RθJA
Thermal Resistance, Junction-to-Ambient
RθJC
Thermal Resistance, Junction-to-Case
Package Marking and Ordering Information
Device Marking
Device
Reel Size
Tape width
Quantity
3612
FDT3612
13’’
12mm
2500 units
2012 Fairchild Semiconductor Corporation
FDT3612 Rev. C2 (W)
FDT3612
February 2012
FDT3612
Typical Characteristics
1.8
5.0V
ID, DRAIN CURRENT (A)
VGS = 10V
RDS(ON), NORMALIZED
DRAIN-SOURCE ON-RESISTANCE
20
4.5V
16
12
4.0V
8
4
3.5V
1.6
VGS = 4.0V
1.4
4.5V
5.0V
6.0V
1.2
0.8
0
0
2
4
6
0
8
4
8
12
16
20
ID, DRAIN CURRENT (A)
VDS, DRAIN-SOURCE VOLTAGE (V)
Figure 1. On-Region Characteristics.
Figure 2. On-Resistance Variation with
Drain Current and Gate Voltage.
0.4
2.2
ID = 3.7A
VGS = 10V
2
RDS(ON), ON-RESISTANCE (OHM)
RDS(ON), NORMALIZED
DRAIN-SOURCE ON-RESISTANCE
10V
1
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
-50
-25
0
25
50
75
100
125
ID = 1.9 A
0.3
TA = 125oC
0.2
TA = 25oC
0.1
0
150
3
4
5
6
7
8
9
10
o
TJ, JUNCTION TEMPERATURE ( C)
VGS, GATE TO SOURCE VOLTAGE (V)
Figure 3. On-Resistance Variation with
Temperature.
Figure 4. On-Resistance Variation with
Gate-to-Source Voltage.
100
20
IS, REVERSE DRAIN CURRENT (A)
ID, DRAIN CURRENT (A)
VDS = 10V
16
12
8
TA = 125oC
25oC
4
-55oC
VGS = 0V
10
TA = 125oC
1
25oC
0.1
-55oC
0.01
0.001
0.0001
0
2
2.5
3
3.5
4
4.5
VGS, GATE TO SOURCE VOLTAGE (V)
Figure 5. Transfer Characteristics.
5
0
0.2
0.4
0.6
0.8
1
1.2
1.4
VSD, BODY DIODE FORWARD VOLTAGE (V)
Figure 6. Body Diode Forward Voltage Variation
with Source Current and Temperature.
FDT3612 Rev. C2 (W)
