Analog Power
AM3940N
N-Channel 40-V (D-S) MOSFET
These miniature surface mount MOSFETs utilize a
high cell density trench process to provide low
rDS(on) and to ensure minimal power loss and heat
dissipation. Typical applications are DC-DC
converters and power management in portable and
battery-powered products such as computers,
printers, PCMCIA cards, cellular and cordless
telephones.
PRODUCT SUMMARY
VDS (V)
rDS(on) m(Ω)
ID (A)
58 @ VGS = 10V
3.5
40
82 @ VGS = 4.5V
3.0
•
•
Low rDS(on) provides higher efficiency and
extends battery life
1
2
3
6
5
4
Low thermal impedance copper leadframe
TSOP-6 saves board space
•
•
Fast switching speed
High performance trench technology
ABSOLUTE MAXIMUM RATINGS (TA = 25 oC UNLESS OTHERWISE NOTED)
Parameter
Symbol
VDS
Limit
40
Units
Drain-Source Voltage
Gate-Source Voltage
V
VGS
±20
TA=25oC
TA=70oC
3.5
2.8
16
Continuous Drain Currenta
ID
A
Pulsed Drain Currentb
Continuous Source Current (Diode Conduction)a
Power Dissipationa
IDM
IS
A
1.25
1.3
0.8
TA=25oC
TA=70oC
PD
W
oC
Operating Junction and Storage Temperature Range
TJ, Tstg -55 to 150
THERMAL RESISTANCE RATINGS
Parameter
Symbol
RθJA
Maximum Units
oC/W
t <= 10 sec
Steady-State
100
Maximum Junction-to-Ambienta
166
oC/W
Notes
a.
b.
Surface Mounted on 1” x 1” FR4 Board.
Pulse width limited by maximum junction temperature
1
Publication Order Number:
DS-AM3940_A
PRELIMINARY