onsemi-FQU2N90TU-AM002

Part #onsemi-FQU2N90TU-AM002
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onsemi-FQU2N90TU-AM002
January
201
4  
FQD2N90 / FQU2N90  
N-Channel QFET

®

MOSFET  
900 V, 1.7 A, 7.2 Ω  
Features  
Description  
• 1.7 A, 900 V, R

DS(on)

= 7.2 Ω (Max.) @ V

GS

= 10 V,  
I

D

= 0.85 A  
• Low Gate Charge (Typ. 12 nC)  
• Low Crss (Typ. 5.5 pF)  
• 100% Avalanche Tested  
• RoHS Compliant  
This N-Channel enhancement mode power MOSFET is  
produced using Fairchild Semiconductor’s proprietary  
planar stripe and DMOS technology. This advanced  
MOSFET technology has been especially tailored to  
reduce on-state resistance, and to provide superior  
switching performance and high avalanche energy  
strength. These devices are suitable for switched mode  
power supplies, active power factor correction (PFC), and  
electronic lamp ballasts.  
D
D
G
I-PAK  
G
S
D-PAK  
G
D
S
S
Absolute Maximum Ratings
T

C

= 25

o

C unless otherwise noted.  
FQD2N90TM  
FQU2N90TU_WS  
FQU2N90TU_AM002  
Symbol  
Parameter  
Unit  
*
4
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Thermal Characteristics  
FQD2N90TM  
FQU2N90TU_WS  
Symbol  
Parameter  
Unit  
FQU2N90TU_AM002  
R

JC  

R

JA  

Thermal Resistance, Junction to Case, Max
.
 
2.
5  
110  
50  
Thermal Resistance, Junction to Ambient (minimum pad of 2 oz copper), Max.  
Thermal Resistance, Junction to Ambient (
*
1 in

2

pad of 2 oz copper), Max.  

o

C/W  
©2009 Fairchild Semiconductor Corporation  
FQD2N90 / FQU2N90 Rev. C2  
1

Package Marking and Ordering Information  
Part Number  
FQD2N90TM  
Top Mark  
FQD2N90  
FQU2N90  
FQU2N90  
Package  
D-PAK  
I
-PAK  
Packing Method
 
Reel Size  
Tape Width  
16
mm  
N/A  
Quantity  
2500 units  
7
5
units  
330 mm  
N/A  
Tape and Reel  
Tube  
FQU2N90TU_WS  
FQU2N90TU_
AM002  
I
-PAK  
N/A  
N/A  
7
5
units  
Tube  
Electrical Characteristics
T

C

= 25

o

C unless otherwise noted.  
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µ
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ꢀꢁꢂꢃꢄꢅ  
1. Repetitive Rating : Pulse width limited by maximum junction temperature  
2. L =
111
mH, I

AS

=
1.7
A, V

DD

= 50 V, R

G

= 25
Ω
, Starting
 
T

J

= 25

o

C  
3. I

SD

≤
2.2
A
, di/dt ≤
2
00 A/μs, V

DD

≤ BV

DSS

, Starting T

J

= 25

o

C  
4. Essentially independent of operating temperature  
©2009 Fairchild Semiconductor Corporation  
FQD2N90 / FQU2N90 Rev. C2  
2

ꢀ !ꢁꢂꢃꢄꢅꢆꢇꢃꢈꢃꢂꢉꢊꢈꢁꢋꢉꢁꢂꢋ
 
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ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢊ

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ꢂ  

ꢆꢂꢋꢀꢅꢀꢀꢀꢀꢀꢀꢀꢌꢉꢍꢎꢀꢊ
 
ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢌꢎꢍꢎꢀꢊ
 
ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢏꢍꢎꢀꢊ
 
ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢐꢍꢎꢀꢊ
 
ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢑꢍꢉꢀꢊ
 
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ꢀꢁ

ꢂ  

ꢒꢂꢃꢃꢂꢓꢀꢅꢀꢀꢀꢀꢉꢍꢉꢀꢊ
 
ꢄꢅꢀ
ꢀ
 
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ꢄꢀ  
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ꢀꢁꢂꢃꢄꢅꢀꢆ  
ꢀ
ꢀꢁꢂꢃꢄꢔꢀꢅ
 
ꢀꢀꢀꢇꢈꢀꢉ

ꢃ
ꢂ

ꢀꢊꢀꢍꢋꢉ  
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ꢀꢀꢀꢌꢈꢀꢌꢍꢋ ꢅꢀꢎꢏꢐꢅꢄꢀꢑꢄꢅꢃ  
ꢂ
ꢀꢀꢀꢌꢍꢀꢈꢉꢎ
 
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ꢁ
ꢀꢀꢀꢈꢍꢀꢆ

ꢄ

ꢀꢇꢀꢈꢉ
 
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ꢀꢃ  
ꢀꢁ  
ꢀꢁ  
ꢀꢁ  
ꢀꢁ

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ꢀꢁ

ꢁ  

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ꢄꢀ  
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ꢂ

ꢀꢂꢀꢓꢋꢏꢈꢉꢃꢄꢅꢆꢇꢈꢀꢁꢄꢎꢏꢋꢐꢈꢀꢀꢑꢁꢒ  
 

ꢀ
ꢂ

ꢖꢔꢀꢏꢗꢍꢌ!ꢁꢋꢘꢏ”ꢙꢔ ꢋ#ꢈꢗꢒꢙꢔꢚ ꢜ
 
ꢀꢁꢂꢃꢄꢅꢆ’ꢈꢆꢔꢎꢕꢖꢅꢂꢁꢘꢎꢆꢉꢏꢊꢄꢊꢌꢍꢅꢄꢁꢐꢍꢁꢌꢐ
 
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ꢀꢁ  
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ꢀꢁ  
ꢄ
ꢄꢀ  
ꢄꢅꢀ
ꢀ  
ꢂꢅ
ꢀ  
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ꢀꢁꢂꢃꢄꢅꢀꢆ  
ꢀꢀꢀꢇꢈꢀꢉ

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ꢀꢊꢀꢋꢉ  
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ꢀꢀꢀꢌꢈꢀꢌꢍꢋ ꢅꢀꢎꢏꢐꢅꢄꢀꢑꢄꢅꢃ  
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ꢕ
 
ꢔꢖꢔꢀꢏꢗꢍꢌꢔꢄꢘꢏꢏꢙꢌꢈꢔꢔꢚꢛꢜ
 
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ꢀꢁꢂꢃꢄꢅꢆꢓꢈꢆꢔꢎꢕꢖꢅꢐꢁꢐꢍꢊꢎꢌꢅꢆꢗꢊꢄꢁꢊꢍꢁꢘꢎꢆꢆꢙꢐꢈ
 
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#ꢅ$ꢋꢅꢄꢊꢍꢃꢄꢅ
 
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ꢀ
ꢇꢁꢁ  
ꢆꢁꢁ  
ꢅꢁꢁ  
ꢄꢁꢁ  
ꢃꢁꢁ  
ꢂꢁꢁ  
ꢀꢁꢁ  
ꢁ
ꢅꢁ  
ꢚ

ꢅꢆꢆ

ꢀꢇꢀꢚ

ꢇ
ꢆ

ꢀꢛꢀꢚ

ꢇ
ꢈ

ꢀꢜꢚ

ꢈ
ꢆ

ꢀꢇꢀꢔꢝꢂꢞꢃꢄ !
 
ꢚ

ꢉ
ꢆꢆ

ꢀꢇꢀꢚ

ꢈ
ꢆ

ꢀꢛꢀꢚ
 
ꢇꢈ  
ꢀ
ꢁꢂꢁꢆꢇꢅꢀ  
ꢁꢂꢁꢃꢄꢅꢀ  
ꢅꢁ  
ꢚ

ꢊꢆꢆ

ꢀꢇꢀꢚ
 
ꢇꢈ  
ꢅꢀ  
ꢄ
ꢀ
ꢀ
ꢅꢁ  
ꢇ
ꢉꢇꢇ  
ꢁꢂꢁꢈꢉꢅꢀ  
ꢅꢁ  
ꢇ
ꢃ
ꢈꢇꢇ  
ꢀ
ꢀꢁꢂꢃꢄꢔꢀꢅ
 
ꢀꢀꢀꢌꢍꢀꢊ

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ꢂ

ꢀꢇꢀꢎꢀꢊ
 
ꢀꢀꢀꢈꢍꢀ”ꢀꢇꢀꢌꢀ#$%
 
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ꢇ
ꢆꢇꢇ  
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ꢀ
ꢀꢁꢂꢃꢄꢀꢅꢀꢘ

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ꢀꢇꢀꢈꢍꢈꢀꢙ
 
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ꢀ
ꢁ
ꢂ
ꢃ
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ꢅꢀ  
ꢅꢁ  
ꢅꢂ  
ꢀꢁ  
ꢂ
ꢁ
ꢀꢁ  
ꢀꢁ  
ꢀꢁ  
ꢀ ꢁꢂꢃꢄꢅꢆꢇꢂꢈꢆꢅꢉꢂꢊꢋꢆꢌꢍꢉꢂꢎꢏꢊꢐ  
ꢁ
 

ꢀ
ꢂ

ꢖꢔꢀꢏꢗꢍꢌ!ꢁꢋꢘꢏ”ꢙꢔ ꢋ#ꢈꢗꢒꢙꢔꢚ ꢜ
 
ꢀꢁꢂꢃꢄꢅꢆꢇꢈꢆꢉꢊꢋꢊꢌꢁꢍꢊꢎꢌꢅꢆꢉꢏꢊꢄꢊꢌꢍꢅꢄꢁꢐꢍꢁꢌꢐ
 
ꢀꢁꢂꢃꢄꢅꢆꢑꢈꢆꢒꢊꢍꢅꢆꢆꢉꢏꢊꢄꢂꢅꢆꢉꢏꢊꢄꢊꢌꢍꢅꢄꢁꢐꢍꢁꢌꢐ
 
©2009 Fairchild Semiconductor Corporation  
FQD2N90 / FQU2N90 Rev. C2  
3

ꢀ !ꢁꢂꢃꢄꢅꢆꢇꢃꢈꢃꢂꢉꢊꢈꢁꢋꢉꢁꢂꢋꢅ
ꢀꢀꢀꢀꢁꢂꢃꢄꢅꢆꢄꢇꢈꢉꢊ  
ꢀ
ꢀ
ꢆꢅꢂ  
ꢄꢅꢃ  
ꢄꢅꢂ  
ꢁꢅꢃ  
ꢁꢅꢂ  
ꢂꢅꢃ  
ꢂꢅꢂ  
ꢏꢌꢎ  
ꢏꢌꢏ  
ꢏꢌꢋ  
ꢀ
ꢊꢋꢌꢍꢎꢏꢊꢐ  
ꢋꢌꢔ  
ꢋꢌꢓ  
ꢊꢊꢊꢀꢅꢊꢑ ꢊꢒꢊꢁꢊꢑ  
ꢇꢈ  
ꢀ
ꢀꢁꢂꢃꢄꢅꢀꢆ  
ꢁ
ꢔ
ꢊꢊꢊꢂꢅꢊꢓ ꢊꢒꢊꢂꢃꢁꢊ  
ꢉ
ꢀꢀꢀꢇꢈꢀꢉ

ꢀꢁ

ꢀꢊꢀꢇꢋꢀꢉ  
ꢀꢀꢀꢌꢈꢀꢍ

ꢂ

ꢀꢊꢀꢇꢈꢇꢀꢎ  
ꢒꢏꢋꢋ  
ꢒꢍꢋ  
ꢋ
ꢍꢋ  
ꢏꢋꢋ  
ꢏꢍꢋ  
ꢎꢋꢋ  
ꢀꢁꢂꢂ  
ꢀꢃꢂ  
ꢂ
ꢃꢂ  
ꢁꢂꢂ  
ꢁꢃꢂ  
ꢄꢂꢂ  
ꢀ
ꢁ
ꢂꢃꢄꢅꢆꢇꢈꢉꢅꢂꢀꢊꢋꢌꢊꢍꢎꢇꢄꢍꢊꢂꢏ

ꢇ

ꢐ
ꢑ  
#
ꢂ
ꢃ$ꢔꢑꢕꢖꢋꢆꢑꢃ#ꢍꢈꢗꢍꢇꢉꢖꢔꢇꢍꢃ%

ꢇ

ꢘ
&
 
ꢆ
%
ꢀꢁꢂꢃꢄꢅꢆ-ꢇꢆꢑꢄꢅꢈ.ꢒꢓ!ꢌꢆꢔꢓꢕꢋꢈꢂꢅꢆꢔꢈꢄꢁꢈꢋꢁꢓꢌ  
ꢏꢐꢇꢆ#ꢅ$ꢊꢅꢄꢈꢋꢃꢄꢅ  
ꢀꢁꢂꢃꢄꢅꢆ/ꢇꢆꢉꢌꢖꢗꢅꢐꢁꢐꢋꢈꢌꢘꢅꢆꢔꢈꢄꢁꢈꢋꢁꢓꢌ  
ꢏꢐꢇꢆ#ꢅ$ꢊꢅꢄꢈꢋꢃꢄꢅ  
ꢀ
ꢀ
ꢀꢅꢉ  
ꢀꢅꢃ  
ꢀꢅꢂ  
ꢁꢅꢈ  
ꢁꢅꢇ  
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ꢁꢅꢁ  
ꢀꢁꢂꢃꢄꢅꢆꢇꢈꢉꢆꢈꢉꢊꢋꢆꢌꢉꢍꢃꢂꢄꢉ
 
ꢆꢌꢉꢎꢆꢏꢆꢅꢂꢐꢉꢑꢒꢉꢓꢉ

ꢅꢆꢇꢈꢉꢊ  

ꢀꢁ

ꢅ  

ꢏꢋꢆ
µ
ꢀ  
ꢏꢋꢋꢆ
µ
ꢀ  
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ꢉꢐ  
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ꢉꢔꢇꢅꢂꢌꢉꢕ
 
ꢉꢉꢉꢖꢗꢉꢊ

ꢁ

ꢉꢘꢉꢙꢚꢉ

ꢈ

ꢛ
 
ꢉꢉꢉꢙꢗꢉꢊ

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ꢈ

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ꢉꢉꢉꢝꢗꢉꢞꢆꢈ !ꢂꢉ”#!ꢌꢂ
 
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ꢔ ꢁꢂꢕꢅꢎꢇꢂꢔꢇꢖꢗꢇꢉꢅꢀꢆꢉꢇꢂꢓ  
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ꢁ
ꢂꢃ  
ꢀꢁꢂꢃꢄꢅꢆ(ꢇꢆ)ꢈ*ꢁ$ꢃ$ꢆ”ꢈ&ꢅꢆꢉꢊꢅꢄꢈꢋꢁꢌꢂꢆ+ꢄꢅꢈ  
ꢀꢁꢂꢃꢄꢅꢆ’,ꢇꢆ)ꢈ*ꢁ$ꢃ$ꢆꢍꢄꢈꢁꢌꢆꢎꢃꢄꢄꢅꢌꢋ  
ꢏꢐꢇꢆꢆꢎꢈꢐꢅꢆ#ꢅ$ꢊꢅꢄꢈꢋꢃꢄꢅ  
ꢀ
ꢉ ꢊ ꢋ
ꢌ
ꢍ  
ꢀ ꢁ

ꢆ  

ꢀ
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ꢀꢀꢀꢇ ꢈꢀ&
 

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ꢃ! ꢀꢊ ꢀꢋ ꢈꢌ ꢀ
 
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* ꢈ  
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ꢀꢀꢀꢋ ꢈꢀ+ ꢍ ꢃ, ꢀ- ) . ꢃꢂ ꢎ/ꢀ+ ꢊ ꢃ

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ꢃ

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1ꢀꢏ

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2 ꢀ&
 

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ꢁ

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ꢏ  
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ꢌ
ꢋ ꢍ  
“
ꢀ ꢁ

ꢀ
ꢅ  

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ꢌ
ꢋ ꢎ  
ꢋ
ꢌ
ꢋ ꢏ  
ꢁꢂ  
ꢀ

ꢀ  

ꢀ
ꢁ
ꢂ ꢃ ꢄꢅ ꢆꢇ ꢈ ꢄꢀ ꢅ  
ꢀ

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ꢁ  

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ꢂ  

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ꢃ  

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ꢅ  

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ꢅ  

ꢀ
ꢁꢂꢃ ꢄ ꢆ ꢅ ꢉꢇ ꢂꢊ
 
ꢅ ꢋ ꢇ ꢂꢌ ꢆ ꢍꢎ ꢇ ꢂꢏ ꢆ ꢉꢅ ꢀꢐꢑ ꢒ ꢂꢓꢎ ꢇ ꢈ  
ꢀ
ꢀꢁꢂꢃꢄꢅꢆ”ꢇꢆ#ꢄꢈꢌꢐꢁꢅꢌꢋꢆ#ꢙꢅꢄ$ꢈꢕꢆꢗꢅꢐꢊꢓꢌꢐꢅꢆꢎꢃꢄꢏꢅ  
©2009 Fairchild Semiconductor Corporation  
FQD2N90 / FQU2N90 Rev. C2  
4

V

GS  

Same Type  
as DUT  
50K
Ω
 
Q

g  

12V  
200nF  
300nF  
V

DS  

V

GS  

Q

gs  

Q

gd  

DUT  
I
= const.  
G
Charge  
Figure
12
. Gate Charge Test Circuit & Waveform  
R

L  

V

DS  

90%  
V

DS  

V

DD  

V

GS  

R

G  

10%  
V

GS  

DUT  
V
GS  
t

d(on)  

t

r  

t

d(off)  

t

f  

t

on  

t

off  

Figure
13
. Resistive Switching Test Circuit & Waveforms  
BV

DSS  

——————–  
BV

DSS

– V

DD  

L
1
2
2
—-  
E

AS  

=
L I

AS  

V

DS  

I

D  

BV

DSS  

I

AS  

R

G  

V

DD  

I

D

(t)  
V
V

DS

(t)  
V

DD  

DUT  

G

S  

t

p  

t

p  

Time  
Figure
14
. Unclamped Inductive Switching Test Circuit & Waveforms  
©2009 Fairchild Semiconductor Corporation  
FQD2N90 / FQU2N90 Rev. C2  
5

+
DUT  
V

DS  

_
I

SD  

L
Driver  
R

G  

Same Type  
as DUT  
V

DD  

V

GS  

• dv/dt controlled by
 
R

G  

• I

SD

controlled by pulse period  
Gate Pulse Width  
————————–  
V

GS  

D =  
Gate Pulse Period  
10V  
( Driver )  
I

FM

, Body Diode Forward Current  
I

SD  

di/dt  
( DUT )  
I

RM  

Body Diode Reverse Current  
Body Diode Recovery dv/dt  
V

SD  

V

DS  

( DUT )  
V

DD  

Body Diode  
Forward Voltage Drop  
Figure
15
. Peak Diode Recovery dv/dt Test Circuit & Waveforms  
©2009 Fairchild Semiconductor Corporation  
FQD2N90 / FQU2N90 Rev. C2  
6

Mechanical Dimensions  
Figure
16
. TO252 (D-PAK), Molded, 3-Lead, Option AA&AB  
Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner  
without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or  
obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specif-  
ically the warranty therein, which covers Fairchild products.  
Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings:  
7
©2009 Fairchild Semiconductor Corporation  
FQD2N90 / FQU2N90 Rev. C2  

Mechanical Dimensions  
Figure
17
. TO-251 (I-PAK), Molded, 3-Lead, Option AA  
Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner  
without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or  
obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specif-  
ically the warranty therein, which covers Fairchild products.  
Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings:  
8
©2009 Fairchild Semiconductor Corporation  
FQD2N90 / FQU2N90 Rev. C2  

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.  
AccuPower™  
AX-CAP *  
BitSiC™  
Build it Now™  
CorePLUS™  
CorePOWER™  
CROSSVOLT
™  
CTL™  
F-PFS™  
FRFET  
Sync-Lock™  
®*  
®
®
®
tm  
®
Global Power Resource

SM  

GreenBridge™  
Green FPS™  
PowerTrench  
PowerXS™  
Programmable Active Droop™  
QFET  
QS™  
Quiet Series™  
RapidConfigure™  
™
®
TinyBoost  
TinyBuck  
®
®
Green FPS™ e-Series™  
G
max
™  
GTO™  
TinyCalc™  
®
TinyLogic  
TINYOPTO™  
TinyPower™  
TinyPWM™  
TinyWire™  
TranSiC™  
TriFault Detect™  
Current Transfer Logic™  
IntelliMAX™  
®
DEUXPEED  
ISOPLANAR™  
Marking Small Speakers Sound Louder  
and Better™  
MegaBuck™  
MICROCOUPLER™  
MicroFET™  
MicroPak™  
MicroPak2™  
MillerDrive™  
MotionMax™  
Dual Cool™  
®
EcoSPARK  
Saving our world, 1mW/W/kW at a time™  
SignalWise™  
SmartMax™  
EfficentMax™  
ESBC™  
®
TRUECURRENT *  
SerDes™  
SMART START™  
®
Solutions for Your Success™  
®
®
SPM  
Fairchild  
®
STEALTH™  
SuperFET  
SuperSOT™-3  
SuperSOT™-6  
SuperSOT™-8  
Fairchild Semiconductor  
FACT Quiet Series™  
®
®
UHC  
®
Ultra FRFET™  
UniFET™  
VCX™  
VisualMax™  
VoltagePlus™  
XS™  
®
mWSaver  
OptoHiT™  
OPTOLOGIC  
OPTOPLANAR  
FACT  
FAST  
®
®
FastvCore™  
FETBench™  
FPS™  
®
®
SupreMOS  
SyncFET™  
*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.  
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.  
ANTI-COUNTERFEITING POLICY  
Fairchild Semiconductor Corporation’s Anti-Counterfeiting Policy. Fairchild’s Anti-Counterfeiting Policy is also stated on our external website,  
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  
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 Identification  
Product Status  
Definition  
Datasheet contains the design specifications for product development. Specifications  
may change in any manner without notice.  
Advance Information  
Formative / In Design  
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.  
Preliminary  
First Production  
Datasheet contains final specifications. Fairchild Semiconductor reserves the right to  
make changes at any time without notice to improve the design.  
No Identification Needed  
Obsolete  
Full Production  
Datasheet contains specifications on a product that is discontinued by Fairchild  
Semiconductor. The datasheet is for reference information only.  
Not In Production  
Rev. I66  
9
©2009 Fairchild Semiconductor Corporation  
FQD2N90 / FQU2N90 Rev. C2