LXA20T600
Qspeed™ Family
600 V, 20 A X-Series PFC Diode
www.powerint.com January 2011
Product Summary
IF(AVG) 20 A
VRRM 600 V
QRR (Typ at 125 °C) 140 nC
IRRM (Typ at 125 °C) 5.0 A
Softness tb/ta (Typ at 125 °C) 0.4
AC
TO-220AC
RoHS Compliant
Package uses Lead-free plating and
Green mold compound.
Halogen free per IEC 61249-2-21.
General Description
This device has the lowest QRR of any 600V
Silicon diode. Its recovery characteristics
increase efficiency, reduce EMI and eliminate
snubbers.
Applications
• Power Factor Correction (PFC) Boost Diode
• Motor drive circuit s
• DC-AC Inverters
Features
• Low QRR, Low IRRM, Low tRR
• High dIF/dt capable (1000A/µs)
• Soft recovery
Benefits
• Increases efficiency
• Eliminates need for snubber circuit s
• Reduces EMI filter component size & count
• Enables extremely fast switching
Absolute Maximum Ratings
Absolute maximum ratings are the values beyond which the device may be damaged or have its useful life impaired. Functional operation
under these conditions is not implied.
Symbol Parameter Conditions Rating Units
VRRM Peak repetitive reverse voltage 600 V
IF(AVG) Average forward current TJ = 150 °C, TC = 100 °C 20 A
IFSM Non-repetitive peak surge cur r ent 60 Hz, ½ c ycle 105 A
IFSM Non-repetitive peak surge cur r ent ½ cycle of t=28 µs Sinusoid, TC=25 °C 350 A
TJ(MAX) Maximum junction temperatur e 150 °C
TSTG Storage temperature –55 to 150 °C
Lead soldering temperature Leads at 1.6 mm from case, 10 sec 300 °C
PD Power dissipation TC = 25 °C 125 W
VRRM Peak repetitive reverse voltage 600 V
Thermal Resistance
Symbol Resistance from: Conditions Rating
U
nits
RθJA Junction to ambient
T
O-220 62 °C/W
RθJC Junction to case
T
O-220 1.0 °C/W
Pin Assignment
www.powerint.com Rev 1.1 01/11
LXA20T600
2
Electrical Specifications at TJ= 25 °C (unless otherwise specified)
Symbol Parameter Conditions Min Typ Max Units
DC Characteristics
IR Reverse current VR = 600V, TJ = 25 °C - - 250 µA
V
R = 600V, TJ = 125 °C - 2.0 - mA
VF Forward voltage IF = 20A, TJ = 25 °C - 2.5 3.1 V
I
F = 20A, TJ = 150 °C - 2.3 - V
CJ Junction capacitance VR = 10V, 1 MHz - 92 - pF
Dynamic Characteristics
tRR T
J=25 °C - 26.5 - ns
Reverse recovery time dI/dt =200 A/µs
VR=400 V, IF=20 A TJ=125 °C - 41.3 - ns
QRR T
J=25 °C - 51 80 nC
Reverse recovery charge dI/dt =200 A/µs
VR=400 V, IF=20 A TJ =125 °C - 140 - nC
IRRM T
J =25 °C - 3.0 4.0 A
Maximum reverse
recovery current dI/dt =200 A/µs
VR=400 V, IF=20 A TJ=125 °C - 5.0 - A
S TJ =25 °C - 0.7 -
Softness factor = a
b
t
t dI/dt =200 A/µs
VR=400 V, IF=20 A TJ=125 °C - 0.4 -
Note to component engineers: X-Series diodes employ Schottky technologies in their design and construction.
Therefore, Component Engin eers sh ould p lan their test s etups to be sim ilar to thos e for traditi onal Sch ottky test setups .
(For additional details, see Application Note AN-300.)
Figure 1. Reverse Recovery Definitions
Figure 2. Reverse Recovery Test Circuit
Pulse generator
Rg Q1
VR
+
15V
D1
DUT
L1
IF
dIF/dt
IRRM
tRR
tb
ta
0
0.1xIRRM
Rev 1.1 01/11 www.powerint.com
LXA20T600
3
Electrical Specifications at TJ= 25 °C (unless otherwise specified)
0
5
10
15
20
25
30
35
40
45
50
55
60
0.00.51.01.52.02.53.03.54.0
V
F
(V)
I
F
(A)
Tj=125C
Tj=25C
Figure 3. Typical IF vs VF
0
50
100
150
200
250
300
350
400
0 20 40 60 80 100 120 140 160 180
V
R
(V)
C
j
(pF)
Figure 4. Typical Cj vs VR
50
75
100
125
150
175
200
225
250
0 5 10 15 20 25 30 35
I
F
(A)
Q
RR
(n C )
dI
F
/dt=200A/us
dI
F
/dt=500A/us
Figure 5. Typical QRR vs IF at TJ = 125 °C
15
20
25
30
35
40
45
50
0 5 10 15 20 25 30 35
I
F
(A)
t
RR
(n s )
dI
F
/dt=200A/us
dI
F
/dt=500A/us
Figure 6. Typical tRR vs IF at TJ = 125 °C
0
5
10
15
20
25
30
35
40
25 50 75 100 125 150
Case Temperature, T
C
(
o
C)
I
F(AV)
(A)
Figure 7. DC Current Derating Curve
0
20
40
60
80
100
120
140
25 50 75 100 125 150
Case Temper atu re, T
C
(
o
C)
P (W )
Figure 8. Power Derating Curve
www.powerint.com Rev 1.1 01/11
LXA20T600
4
0
5
10
15
20
25
30
35
40
45
50
55
60
25 50 75 100 125 150
TC(°C)
IF( PEAK) (A)
duty cycle=10%
duty cycle=50%
duty cycle=30%
DC
Figure 9. IF(PEAK) vs TC, f=70 kHz
LXA20T600
0.001
0.01
0.1
1
1.E-06 1.E-05 1.E-04 1.E-03 1.E-02 1.E-01 1.E+00
t1(sec)
Zth(j-c)/Rth(j-c
)
D=0.002
D=0.005
D= 0. 01
D= 0. 02
D= 0. 05
D= 0.1
D = 0. 3
D= 0.5
Single Pulse
Figure 10. Normalized Maximum Transient Thermal Impedance
Rev 1.1 01/11 www.powerint.com
LXA20T600
5
Dimensional Outline Drawings
Millimeters
Dim MIN MAX
A 4.32 4.70
A1 1.14 1.40
A2 2.03 2.79
C 0.34 0.610
D 9.65 10.67
E 2.49 2.59
E1 4.98 5.18
F 0.508 1.016
F1 1.14 1.78
H 14.71 16.51
H1 5.84 6.55
H2 8.51 9.25
H3 3.53 3.96
H4 2.54 3.05
L 12.70 14.22
L1 - 6.35
Mechanical Mounting
Method Maximum Torque / Pressure specification
Screw through hole in package tab 1 Newton Meter (nm) or 8.8 inch-pounds (lb-in)
Clamp against package body 12.3 kilogram-force per square centimeter (kgf/cm2) or 175 lbf/in2
Soldering time and temperature: This product has been designed for use with high-
temperature, lead-free solder. The component leads can be subjected to a maximum
temperature of 300 °C, for up to 10 seconds. See Application Note AN-303, for more
details.
Ordering Information
Part Number Package Packing
LXA20T600 TO-220AC 50 units/tube
The information contained in this document is subject to change without notice.
www.powerint.com Rev 1.1 01/11
LXA20T600
6
Revision Notes Date
1.0 Released by Qspeed 09/09
1.1 Converted to Power Integrations Document 01/11
Rev 1.1 01/11 www.powerint.com
LXA20T600
7
For the latest updates, visit our website: www.powerint.com
Power Integrations reserves the right to make changes to its products at any time to improve reliability or manufacturability.
Power Integrations do es not assume an y li abilit y arisi ng from the use of any device or circuit described here in. POWE R
INTEGRATIONS MAKES NO WARRANTY HEREIN AND SPECIFICALLY DISCLAIMS ALL WARRANTIES INCLUDING,
WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
PURPOSE, AND NON-INFRINGEMENT OF THIRD PARTY RIGHTS.
PATENT INFORMATION
The products and applications illustrated herein (including transformer construction and circuits external to the products)
may be covered by one or more U.S. and foreign patents, or potentially by pending U.S. and foreign patent applicatio ns
assigned to Power Integrations. A complete list of Power Integrations’ patents may be found at www.powerint.com. Power
Integrations grants its customers a license under certain patent rights as set forth at http://www.powerint.com/ip.htm.
The PI Logo, TOPSwitch, TinySwitch, LinkSwitch, DPA-Switch, PeakSwitch, CAPZero, SENZero, LinkZero, HiperPFS, HiperTFS,
Qspeed, EcoSmart, Clampless, E-Shield, Filterfuse, StackFET, PI Expert and PI FACTS a re tr ad em arks of Power Integrations, Inc.
Other trademarks are property of their respective companies. ©Copyright 2011 Power Integrations, Inc.
Power Integrations Worldwide Sales Support Locations
WORLD HEADQUARTERS
5245 Hellyer Avenue
San Jose, CA 95138, USA.
Main: +1-408-414-9200
Customer Service:
Phone: +1-408-414-9665
Fax: +1-408-414 -9765
e-mail:
usasales@powerint.com
GERMANY
Rueckertstrasse 3
D-80336, Munich
Germany
Phone: +49-89-5527-3911
Fax: +49-89-5527-3 920
e-mail:
eurosales@powerint.com
JAPAN
Kosei Dai-3 Building
2-12-11, Shin-Yokohama,
Kohoku-ku, Yokohama-shi,
Kanagawa 222-0033
Japan
Phone: +81-45-471-1021
Fax: +81-45-471-3717
e-mail: japansales@powerint.com
TAIWAN
5F, No. 318, Nei Hu Rd., Sec. 1
Nei Hu District
Taipei 114, Taiwan R.O.C.
Phone: +886-2-2659-4570
Fax: +886-2-2659-4550
e-mail:
taiwansales@powerint.com
CHINA (SHANGHAI)
Rm 1601/1610, Tower 1
Kerry Everbright City
No. 218 Tianmu Road West
Shanghai, P.R.C. 200070
Phone: +86-021-6354-6323
Fax: +86-021-63 54-6325
e-mail:
chinasales@powerint.com
INDIA
#1, 14
th
Main Road
Vasanthanagar
Bangalore-560052
India
Phone: +91-80-4113-8020
Fax: +91-80-4113-8 023
e-mail:
indiasales@powerint.com
KOREA
RM 602, 6FL
Korea City Air Terminal B/D, 159-6
Samsung-Dong, Kangnam-Gu,
Seoul, 135-728
Korea
Phone: +82-2-2016-6610
Fax: +82-2-2016-6630
e-mail: koreasales@powerint.com
EUROPE HQ
1st Floor, St. James’s House
East Street, Farnham
Surrey GU9 7TJ
United Kingdom
Phone: +44 (0) 1252-730-141
Fax: +44 (0) 1252-727-689
e-mail:
eurosales@powerint.com
CHINA (SHENZHEN)
Rm A, B & C 4
th
Floor, Block C,
Electronics Science and
Technology Building
2070 Shennan Zhong Road
Shenzhen, Guangdong,
P.R.C. 518031
Phone: +86-755-8379-3243
Fax: +86-755-83 79-5828
e-mail:
chinasales@powerint.com
ITALY
Via De Amicis 2
20091 Bresso MI
Italy
Phone: +39-028-928-6000
Fax: +39-028-928-6009
e-mail:
eurosales@powerint.com
SINGAPORE
51 Newton Road,
#19-01/05 Goldhill Plaza
Singapore, 308900
Phone: +65-6358-2160
Fax: +65-6358-2015
e-mail:
singaporesales@powerint.com
APPLICATIONS HOTLINE
World Wide +1-408-414-9660
APPLICATIONS FAX
World Wide +1-408-414-9760
