©2006 Fairchild Semiconductor Corporation 1www.fairchildsemi.com
FDD6N50/FDU6N50 REV. A
FDD6N50/FDU6N50 500V N-Channel MOSFET
January 2006
UniFET TM
FDD6N50/FDU6N50
500V N-Channel MOSFET
Features
6A, 500V, RDS(on) = 0.9 @VGS = 10 V
Low gate charge ( typical 12.8 nC)
•Low C
rss ( typical 9 pF)
•Fast switching
100% avalanche tested
Improved dv/dt capability
Description
These N-Channel enhancement mode power field effect
transistors are produced using Fairchild’s proprietary, planar
stripe, DMOS technology.
This advanced technology has been especially tailored to
minimize on-state resistance, provide superior switching
performance, and withstand high energy pulse in the avalanche
and commutation mode. These devices are well suited for high
efficient switched mode power supplies and active power factor
correction.
I-PAK
FDU Series
D-PAK
FDD Series GSD
GS
D
D
G
S
Absolute Maximum Ratings
Symbol Parameter FDD6N50/FDU6N50 Unit
VDSS Drain-Source Voltage 500 V
IDDrain Current - Continuous (TC = 25°C)
- Continuous (TC = 100°C)
6
3.8
A
A
IDM Drain Current - Pulsed (Note 1) 24 A
VGSS Gate-Source voltage ±30 V
EAS Single Pulsed Avalanche Energy (Note 2) 270 mJ
IAR Avalanche Current (Note 1) 6 A
EAR Repetitive Avalanche Energy (Note 1) 8.9 mJ
dv/dt Peak Diode Recovery dv/dt (Note 3) 4.5 V/ns
PDPower Dissipation (TC = 25°C)
- Derate above 25°C
89
0.71
W
W/°C
TJ, TSTG Operating and Storage Temperature Range -55 to +150 °C
TLMaximum Lead Temperature for Soldering Purpose,
1/8” from Case for 5 Seconds 300 °C
Thermal Characteristics
Symbol Parameter Min. Max. Unit
RθJC Thermal Resistance, Junction-to-Case -- 1.4 °C/W
RθJA Thermal Resistance, Junction-to-Ambient -- 83 °C/W
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FDD6N50/FDU6N50 REV. A
FDD6N50/FDU6N50 500V N-Channel MOSFET
Package Marking and Ordering Information
Device Marking Device Package Reel Size Tape Width Quantity
FDD6N50 FDD6N50TM D-PAK 380mm 16mm 2500
FDD6N50 FDD6N50TF D-PAK 380mm 16mm 2000
FDU6N50 FDU6N50TU I-PAK - - 70
Electrical Characteristics TC = 25°C unless otherwise noted
Symbol Parameter Conditions Min. Typ. Max Units
Off Characteristics
BVDSS Drain-Source Breakdown Voltage VGS = 0V, ID = 250µA500 -- -- V
BVDSS
/ TJ
Breakdown Voltage Temperature
Coefficient ID = 250µA, Referenced to 25°C-- 0.5 -- V/°C
IDSS Zero Gate Voltage Drain Current VDS = 500V, VGS = 0V
VDS = 400V, TC = 125°C
--
--
--
--
1
10
µA
µA
IGSSF Gate-Body Leakage Current, Forward VGS = 30V, VDS = 0V -- -- 100 nA
IGSSR Gate-Body Leakage Current, Reverse VGS = -30V, VDS = 0V -- -- -100 nA
On Characteristics
VGS(th) Gate Threshold Voltage VDS = VGS, ID = 250µA3.0 -- 5.0 V
RDS(on) Static Drain-Source
On-Resistance VGS = 10V, ID = 3A -- 0.76 0.9
gFS Forward Transconductance VDS = 40V, ID = 3A (Note 4) -- 2.5 -- S
Dynamic Characteristics
Ciss Input Capacitance VDS = 25V, VGS = 0V,
f = 1.0MHz
-- 720 940 pF
Coss Output Capacitance -- 95 190 pF
Crss Reverse Transfer Capacitance -- 913.5 pF
Switching Characteristics
td(on) Turn-On Delay Time VDD = 250V, ID = 6A
RG = 25
(Note 4, 5)
-- 620 ns
trTurn-On Rise Time -- 55 120 ns
td(off) Turn-Off Delay Time -- 25 60 ns
tfTurn-Off Fall Time -- 35 80 ns
QgTotal Gate Charge VDS = 400V, ID = 6A
VGS = 10V
(Note 4, 5)
-- 12.8 16.6 nC
Qgs Gate-Source Charge -- 3.7 -- nC
Qgd Gate-Drain Charge -- 5.8 -- nC
Drain-Source Diode Characteristics and Maximum Ratings
ISMaximum Continuous Drain-Source Diode Forward Current -- -- 6 A
ISM Maximum Pulsed Drain-Source Diode Forward Current -- -- 24 A
VSD Drain-Source Diode Forward Voltage VGS = 0V, IS = 6A -- -- 1.4 V
trr Reverse Recovery Time VGS = 0V, IS = 6A
dIF/dt =100A/µs (Note 4)
-- 275 -- ns
Qrr Reverse Recovery Charge -- 1.7 -- µC
NOTES:
1. Repetitive Rating: Pulse width limited by maximum junction temperature
2. IAS = 6A, VDD = 50V, L=13.5mH, RG = 25, Starting TJ = 25°C
3. ISD 6A, di/dt 200A/µs, VDD BVDSS, Starting TJ = 25°C
4. Pulse Test: Pulse width 300µs, Duty Cycle 2%
5. Essentially Independent of Operating Temperature Typical Characteristics
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FDD6N50/FDU6N50 REV. A
FDD6N50/FDU6N50 500V N-Channel MOSFET
Typical Performance Characteristics
Figure 1. On-Region Characteristics Figure 2. Transfer Characteristics
Figure 3. On-Resistance Variation vs. Figure 4. Body Diode Forward Voltage
Drain Current and Gate Voltage Variation vs. Source Current
and Temperature
Figure 5. Capacitance Characteristics Figure 6. Gate Charge Characteristics
246810
10-2
10-1
100
101
Note
1. VDS = 40V
2. 250s Pulse Test
-55
150
25
ID , Drain Current [A]
VGS , Gate-Source Voltage [V]
0 1020304050
0
5
10
15
20
VGS
Top : 10.0 V
8.0V
7.5 V
7.0 V
6.5 V
6.0 V
5.5 V
Bottom : 5.0 V
Notes :
1. 250s Pulse Test
2. TC = 25
ID, Drain Current [A]
VDS, Drain-Source Voltage [V]
0 5 10 15 20
0.0
0.5
1.0
1.5
2.0
2.5
VGS = 20V
VGS = 10V
Note : TJ = 25
RDS(ON) [],Drain-Source On-Resistance
ID, Drain Current [A]
0.20.40.60.81.01.21.41.61.8
10-1
100
101
25
150
Notes :
1. VGS = 0V
2. 250s Pulse Test
IDR , Reverse Drain Current [A]
VSD , Source-Drain Voltage [V]
100101
10
100
1000
Ciss = Cgs + Cgd (Cds = shorted)
Coss = Cds + Cgd
Crss = Cgd
Notes :
1. VGS = 0 V
2. f = 1 MHz
Crss
Coss
Ciss
Capacitance [pF]
VDS, Drain-Source Voltage [V]
051015
0
2
4
6
8
10
12
VDS = 250V
VDS = 100V
VDS = 400V
Note : ID = 6A
VGS, Gate-Source Voltage [V]
QG, Total Gate Charge [nC]
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FDD6N50/FDU6N50 REV. A
FDD6N50/FDU6N50 500V N-Channel MOSFET
Typical Performance Characteristics (Continued)
Figure 7. Breakdown Voltage Variation Figure 8. On-Resistance Variation
vs. Temperature vs. Temperature
Figure 9. Maximum Safe Operating Area Figure 10. Maximum Drain Current
vs. Case Temperature
Figure 11. Transient Thermal Response Curve
-100 -50 0 50 100 150 200
0.8
0.9
1.0
1.1
1.2
Notes :
1. VGS = 0 V
2. ID = 250 µA
BVDSS, (Normalized)
Drain-Source Breakdown Voltage
TJ, Junction Temperature [oC]
-100 -50 0 50 100 150 200
0.0
0.5
1.0
1.5
2.0
2.5
3.0
Notes :
1. VGS = 10 V
2. ID = 3 A
RDS(ON), (Normalized)
Drain-Source On-Resistance
TJ, Junction Temperature [oC]
25 50 75 100 125 150
0
2
4
6
8
ID, Drain Current [A]
TC, Case Temperature []
100101102103
10-2
10-1
100
101
102
10 us
Operation in This Area
is Limited by R DS(on)
DC
10 ms
1 ms
100 us
Notes :
1. TC = 25 oC
2. TJ = 150 oC
3. Single Pulse
ID, Drain Current [A]
VDS, Drain-Source Voltage [V]
10-5 10-4 10-3 10-2 10-1 100101
10-2
10-1
100
Notes :
1. ZJC
(t) = 1.4 /W Max.
2. D uty F actor, D= t1/t2
3. TJM - TC = PDM * ZJC
(t)
single pulse
D=0.5
0.02
0.2
0.05
0.1
0.01
ZJC
(t), Thermal Response
t1, Square W ave Pulse Duration [sec]
t1
PDM
t2
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FDD6N50/FDU6N50 REV. A
FDD6N50/FDU6N50 500V N-Channel MOSFET
Gate Charge Test Circuit & Waveform
Resistive Switching Test Circuit & Waveforms
Unclamped Inductive Switching Test Circuit & Waveforms
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FDD6N50/FDU6N50 REV. A
FDD6N50/FDU6N50 500V N-Channel MOSFET
Peak Diode Recovery dv/dt Test Circuit & Waveforms
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FDD6N50/FDU6N50 REV. A
FDD6N50/FDU6N50 500V N-Channel MOSFET
Mechanical Dimensions
D-PAK
Dimensions in Millimeters
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FDD6N50/FDU6N50 REV. A
FDD6N50/FDU6N50 500V N-Channel MOSFET
Mechanical Dimensions (Continued)
I-PAK
Dimensions in Millimeters
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 P ATENT RIGHTS, NOR THE RIGHTS OF OTHERS.
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.
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 F AIRCHILD SEMICONDUCTOR CORPORATION.
As used herein:
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, or (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 significant injury to the
user.
2. A critical component is 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.
PRODUCT ST A TUS DEFINITIONS
Definition of Terms
Datasheet Identification Product Status Definition
Advance Information
Preliminary
No Identification Needed
Obsolete
This datasheet contains the design specifications for
product development. Specifications may change in
any manner without notice.
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.
This datasheet contains final specifications. Fairchild
Semiconductor reserves the right to make changes at
any time without notice in order to improve design.
This datasheet contains specifications on a product
that has been discontinued by Fairchild semiconductor.
The datasheet is printed for reference information only.
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In Design
First Production
Full Production
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