Datasheet
©2005 Fairchild Semiconductor Corporation
1
www.fairchildsemi.com
June 2005
FDS4685 Rev. C(W)
FDS4685 40V P-Channel PowerTrench
®
MOSFET
FDS4685
40V P-Channel PowerTrench
®
MOSFET
Features
■
–8.2 A, –40 V R
DS(ON)
= 0.027
Ω
@ V
GS
= –10 V
R
DS(ON)
= 0.035
Ω
@ V
GS
= –4.5 V
■
Fast switching speed
■
High performance trench technology for extremely low
R
DS(ON)
■
High power and current handling capability
Applications
■
Power management
■
Load switch
■
Battery protection
General Description
This P-Channel MOSFET is a rugged gate version of Fairchild
Semiconductor’s advanced PowerTrench process. It has been
optimized for power management applications requiring a wide
range of gate drive voltage ratings (4.5V – 20V).
Absolute Maximum Ratings
T
A
= 25°C unless otherwise noted
Package Marking and Ordering Information
Symbol Parameter Ratings Units
V
DSS
Drain-Source Voltage –40 V
V
GSS
Gate-Source Voltage
±
20 V
I
D
Drain Current - Continuous (Note 1a) –8.2 A
- Pulsed –50
P
D
Power Dissipation for Single Operation (Note 1a) 2.5 W
(Note 1b) 1.4
(Note 1c) 1.2
T
J
, T
STG
Operating and Storage Junction Temperature Range –55 to +150
°
C
Thermal Characteristics
R
θ
JA
Thermal Resistance, Junction-to-Ambient (Note 1a) 50
°
C/W
R
θ
JA
Thermal Resistance, Junction-to-Ambient (Note 1c) 125
R
θ
JC
Thermal Resistance, Junction-to-Case (Note 1) 25
Device Marking Device Reel Size Tape width Quantity
FDS4685 FDS4685 13” 12mm 2500 units
S
Pin 1
D
S
S
SO-8
D
D
D
G
5
6
7
8
4
3
2
1