• Enables highly efficiency in synchronous rectification
• Fast Switching Speed
• 100% UIL Tested
• RoHS Compliant
= 3.2mΩ (Typ.)@ VGS = 10V, ID = 50A
DS(on)
DS(on) *QG
rr
Description
This N-Channel MOSFET is produced using Fairchild Semiconductor’s advanced PowerTrench process that has been especially tailored to minimize the on-state resistance and yet
maintain superior switching performance.
Application
• Synchronous Rectification for Server / Telecom PSU
• Battery Charger and Battery Protection circuit
• DC motor drives and Uninterruptible Power Supplies
• Micro Solar Inverter
®
MOSFET
MOSFET Maximum RatingsT
SymbolParameterRatingsUnits
V
DSS
V
GSS
I
D
I
DM
E
AS
P
D
TJ, T
STG
Drain to Source Voltage80V
Gate to Source Voltage±20V
Drain Current
Drain Current- Pulsed (Note 2)400A
Single Pulsed Avalanche Energy (Note 3)240mJ
Power Dissipation
Operating and Storage Temperature Range-55 to +150
If R = 0
tAV = (L)(IAS)/(1.3*RATED BVDSS-VDD)
If R = 0
tAV = (L/R)In[(IAS*R)/(1.3*RATED BVDSS-VDD)+1]
STARTING TJ = 25oC
STARTING TJ = 150oC
I
AS
, AVALANCHE CURRENT (A)
tAV, TIME IN AVALANCHE (ms)
Figure 7. Breakdown Voltage Variation Figure 8. On-Resistance Variation
vs. Temperature vs. Temperature
FDMS039N08B N-Channel PowerTrench
Figure 9. Maximum Safe Operating Area Figure 10. Maximum Drain Current
vs. Ambient Temperature
Figure 11. Unclamped Inductive Figure 12. Eoss vs. Drain to Source Voltage
Switching Capability
®
MOSFET
FDMS039N08B Rev. C2
4
www.fairchildsemi.com
Page 5
Typical Performance Characteristics (Continued)
10
-3
10
-2
10
-1
110
1001000
0.001
0.01
0.1
1
2
0.01
0.1
0.2
0.05
0.02
*Notes:
1. Z
θJA
(t) = 125oC/W Max.
2. Duty Factor, D= t1/t
2
3. TJM - TC = PDM * Z
θJC
(t)
0.5
Single pulse
Thermal Response [Z
θJA
]
Rectangular Pulse Duration [sec]
t
1
P
DM
t
2
Figure 13. Transient Thermal Response Curve
FDMS039N03B N-Channel PowerTrench
®
MOSFET
FDMS039N08B Rev. C2
www.fairchildsemi.com5
Page 6
Gate Charge Test Circuit & Waveform
Resistive Switching Test Circuit & Waveforms
Unclamped Inductive Switching Test Circuit & Waveforms
FDMS039N08B N-Channel PowerTrench
®
MOSFET
FDMS039N08B Rev. C2
6
www.fairchildsemi.com
Page 7
DUT
V
DS
+
_
Driver
R
G
Same Type
as DUT
V
GS
• dv/dt controlled by R
G
• ISDcontrolled by pulse period
V
DD
L
I
SD
10V
V
GS
( Driver )
I
SD
( DUT )
V
DS
( DUT )
V
DD
Body Diode
Forward Voltage Drop
V
SD
IFM, Body Diode Forward Current
Body Diode Reverse Current
I
RM
Body Diode Recovery dv/dt
di/dt
D =
Gate Pulse Width
Gate Pulse Period
--------------------------
DUT
V
DS
+
_
Driver
R
G
Same Type
as DUT
V
GS
• dv/dt controlled by R
G
• ISDcontrolled by pulse period
V
DD
L
L
I
SD
10V
V
GS
( Driver )
I
SD
( DUT )
V
DS
( DUT )
V
DD
Body Diode
Forward Voltage Drop
V
SD
IFM, Body Diode Forward Current
Body Diode Reverse Current
I
RM
Body Diode Recovery dv/dt
di/dt
D =
Gate Pulse Width
Gate Pulse Period
--------------------------
D =
Gate Pulse Width
Gate Pulse Period
--------------------------
FDMS039N08B N-Channel PowerTrench
Peak Diode Recovery dv/dt Test Circuit & Waveforms
®
MOSFET
FDMS039N08B Rev. C2
7
www.fairchildsemi.com
Page 8
Dimensional Outline and Pad Layout
FDMS039N08B N-Channel PowerTrench
®
MOSFET
FDMS039N08B Rev. C2
8
www.fairchildsemi.com
Page 9
TRADEMARKS
®
The following includes registered and unregistered trademarks and service marks, owned by Fairchild Semiconductor and/or its global subsidiaries, and is not
intended to be an exhaustive list of all such trademarks.
2Cool™
AccuPower™
Auto-SPM™
AX-CAP™*
®
BitSiC
Build it Now™
CorePLUS™
CorePOWER™
CROSSVOLT™
CTL™
Current Transfer Logic™
DEUXPEED
Dual Cool™
EcoSPARK
EfficentMax™
The Power Franchise
The Right Technology for Your Success™
TinyBoost™
TinyBuck™
TinyCalc™
®
TinyLogic
TINYOPTO™
TinyPower™
TinyPWM™
TinyWire™
®
TranSiC
TriFault Detect™
TRUECURRENT®*
µSerDes™
®
UHC
Ultra FRFET™
UniFET™
VCX™
VisualMax™
XS™
®
®
FDMS039N08B N-Channel PowerTrench
®
MOSFET
*Trademarks of System General Corporation, used under license by Fairchild Semiconductor.
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE
RELIABILITY, FUNCTION, OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY
PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.
THESE SPECIFICATIONS DO NOT EXPAND THE TERMS OF FAIRCHILD’S WORLDWIDE TERMS AND CONDITIONS, SPECIFICALLY THE WARRANTY
THEREIN, WHICH COVERS THESE PRODUCTS.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE
EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION.
As used here in:
1. Life support devices or systems are devices or systems which, (a) are
intended for surgical implant into the body or (b) support or sustain life,
and (c) whose failure to perform when properly used in accordance with
instructions for use provided in the labeling, can be reasonably
expected to result in a significant injury of the user.
ANTI-COUNTERFEITING POLICY
Fairchild Semiconductor Corporation’s Anti-Counterfeiting Policy. Fairchild’s Anti-Counterfeiting Policy is also stated on our external website,
www.Fairchildsemi.com, under Sales Support.
Counterfeiting of semiconductor parts is a growing problem in the industry. All manufactures of semiconductor products are experiencing counterfeiting of their
parts. Customers who inadvertently purchase counterfeit parts experience many problems such as loss of brand reputation, substandard performance, failed
2. A critical component in any component of a life support, device, or
system whose failure to perform can be reasonably expected to cause
the failure of the life support device or system, or to affect its safety or
effectiveness.
application, and increased cost of production and manufacturing delays. Fairchild is taking strong measures to protect ourselves and our customers from the
proliferation of counterfeit parts. Fairchild strongly encourages customers to purchase Fairchild parts either directly from Fairchild or from Authorized Fairchild
Distributors who are listed by country on our web page cited above. Products customers buy either from Fairchild directly or from Authorized Fairchild
Distributors are genuine parts, have full traceability, meet Fairchild’s quality standards for handing and storage and provide access to Fairchild’s full range of
up-to-date technical and product information. Fairchild and our Authorized Distributors will stand behind all warranties and will appropriately address and
warranty issues that may arise. Fairchild will not provide any warranty coverage or other assistance for parts bought from Unauthorized Sources. Fairchild is
committed to combat this global problem and encourage our customers to do their part in stopping this practice by buying direct or from authorized distributors.
PRODUCT STATUS DEFINITIONS
Definition of Terms
Datasheet IdentificationProduct StatusDefinition
Advance InformationFormative / In Design
PreliminaryFirst Production
No Identification NeededFull Production
ObsoleteNot In Production
FDMS039N08B Rev. C2
Datasheet contains the design specifications for product development. Specifications
may change in any manner without notice.
Datasheet contains preliminary data; supplementary data will be published at a later
date. Fairchild Semiconductor reserves the right to make changes at any time without
notice to improve design.
Datasheet contains final specifications. Fairchild Semiconductor reserves the right to
make changes at any time without notice to improve the design.
Datasheet contains specifications on a product that is discontinued by Fairchild
Semiconductor. The datasheet is for reference information only.
9
www.fairchildsemi.com
Rev. I55
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