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PDF FQD45N03L Data sheet ( Hoja de datos )
| Número de pieza | FQD45N03L | |
| Descripción | N-Channel Logic Level PWM Optimized Power MOSFET | |
| Fabricantes | Fairchild Semiconductor | |
| Logotipo |  |
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March 2004
FQD45N03L
N-Channel Logic Level PWM Optimized Power MOSFET
General Description
This device employs a new advanced MOSFET technology
and features low gate charge while maintaining low on-
resistance.
Optimized for switching applications, this device improves
the overall efficiency of DC/DC converters and allows
operation to higher switching frequencies.
Applications
• DC/DC converters
Features
• Fast switching
• rDS(ON) = 0.018Ω (Typ), VGS = 10V
• rDS(ON) = 0.028Ω (Typ), VGS = 5V
• Qg (Typ) = 9nC, VGS = 5V
• Qgd (Typ) =3nC
• CISS (Typ) =970pF
DRAIN (FLANGE)
D
GATE
SOURCE
TO-252
G
S
MOSFET Maximum Ratings TC=25°C unless otherwise noted
Symbol
VDSS
VGS
ID
Parameter
Drain to Source Voltage
Gate to Source Voltage
Drain Current
Continuous (TC = 25oC, VGS = 10V)
Continuous (TC = 100oC, VGS = 4.5V)
Continuous (TC = 25oC, VGS = 10V, RθJA=52oC)
Pulsed
PD
Power dissipation
Derate above 25oC
TJ, TSTG
Operating and Storage Temperature
Ratings
30
±20
20
20
8
Figure 4
41
0.33
-55 to 150
Thermal Characteristics
RθJC
RθJA
RθJA
Thermal Resistance Junction to Case TO-252
Thermal Resistance Junction to Ambient TO-252
Thermal Resistance Junction to Ambient TO-252, 1in2 copper pad area
3
100
52
Package Marking and Ordering Information
Device Marking
FQD45N03L
Device
FQD45N03L
Package
TO-252AA
Reel Size
330mm
Tape Width
16mm
Units
V
V
A
A
A
A
W
W/oC
oC
oC/W
oC/W
oC/W
Quantity
2500 units
©2004 Fairchild Semiconductor Corporation
FQD45N03L Rev. B1
1 page  
Typical Characteristic (Continued) TC = 25°C unless otherwise noted
2000
1000
CISS = CGS + CGD
COSS ≅ CDS + CGD
CRSS = CGD
100
VGS = 0V, f = 1MHz
40
0.1
1
10
VDS, DRAIN TO SOURCE VOLTAGE (V)
30
Figure 11. Capacitance vs Drain To Source
Voltage
10
VDD = 15V
8
6
4
WAVEFORMS IN
2 DESCENDING ORDER:
ID = 20A
ID = 10A
0
0
5 10 15 20
Qg, GATE CHARGE (nC)
Figure 12. Gate Charge Waveforms For Constant
Gate Current
100
VGS = 4.5V, VDD = 15V, ID = 8A
80
60
40
20
tr
tf
td(OFF)
td(ON)
0
0 10 20 30 40 50
RGS, GATE TO SOURCE RESISTANCE (Ω)
Figure 13. Switching Time vs Gate Resistance
Test Circuits and Waveforms
150
VGS = 10V, VDD = 15V, ID = 8A
100
td(OFF)
tf
50
tr
td(ON)
0
0 10 20 30 40
RGS, GATE TO SOURCE RESISTANCE (Ω)
50
Figure 14. Switching Time vs Gate Resistance
VARY tP TO OBTAIN
REQUIRED PEAK IAS
VGS
tP
0V
RG
VDS
L
DUT
+
VDD
-
IAS
0.01Ω
Figure 15. Unclamped Energy Test Circuit
©2004 Fairchild Semiconductor Corporation
tP
IAS
BVDSS
VDS
VDD
0
tAV
Figure 16. Unclamped Energy Waveforms
FQD45N03L Rev. B1
5 Page 
TRADEMARKS
The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is
not intended to be an exhaustive list of all such trademarks.
ACEx™
FACT Quiet Series™ ISOPLANAR™
POP™
Stealth™
ActiveArray™ FAST
LittleFET™
Power247™
SuperFET™
Bottomless™ FASTr™
MICROCOUPLER™ PowerSaver™
SuperSOT™-3
CoolFET™
FPS™
MicroFET™
PowerTrench
SuperSOT™-6
CROSSVOLT™ FRFET™
MicroPak™
QFET
SuperSOT™-8
DOME™
GlobalOptoisolator™ MICROWIRE™
QS™
SyncFET™
EcoSPARK™ GTO™
MSX™
QT Optoelectronics™ TinyLogic
E2CMOS™
HiSeC™
MSXPro™
Quiet Series™
TINYOPTO™
EnSigna™
I2C™
OCX™
RapidConfigure™
TruTranslation™
FACT™
ImpliedDisconnect™ OCXPro™
Across the board. Around the world.™ OPTOLOGIC
RapidConnect™
UHC™
SILENT SWITCHER UltraFET
The Power Franchise
OPTOPLANAR™ SMART START™ VCX™
Programmable Active Droop™
PACMAN™
SPM™
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TOANY
PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOTASSUMEANY LIABILITY
ARISING OUT OF THEAPPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT
CONVEYANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTENAPPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION.
As used herein:
1. Life support devices or systems are devices or
2. A critical component is any component of a life
systems which, (a) are intended for surgical implant into
support device or system whose failure to perform can
the body, or (b) support or sustain life, or (c) whose
be reasonably expected to cause the failure of the life
failure to perform when properly used in accordance
support device or system, or to affect its safety or
with instructions for use provided in the labeling, can be
reasonably expected to result in significant injury to the
effectiveness.
user.
PRODUCT STATUS DEFINITIONS
Definition of Terms
Datasheet Identification
Product Status
Definition
Advance Information
Formative or
In Design
This datasheet contains the design specifications for
product development. Specifications may change in
any manner without notice.
Preliminary
First Production
This datasheet contains preliminary data, and
supplementary data will be published at a later date.
Fairchild Semiconductor reserves the right to make
changes at any time without notice in order to improve
design.
No Identification Needed
Full Production
This datasheet contains final specifications. Fairchild
Semiconductor reserves the right to make changes at
any time without notice in order to improve design.
Obsolete
Not In Production
This datasheet contains specifications on a product
that has been discontinued by Fairchild semiconductor.
The datasheet is printed for reference information only.
Rev. I9
11 Page | ||
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