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PD - 93935B
SMPS MOSFET
Applications
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IRFR3708 IRFU3708
HEXFET(R) Power MOSFET
High Frequency DC-DC Isolated Converters with Synchronous Rectification for Telecom and Industrial Use High Frequency Buck Converters for Computer Processor Power
VDSS
30V
RDS(on) max
12.5m
ID
61A
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Benefits
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Ultra-Low Gate Impedance Very Low RDS(on) at 4.5V VGS Fully Characterized Avalanche Voltage and Current
D-Pak IRFR3708 I-Pak IRFU3708
Absolute Maximum Ratings
Symbol
VDS VGS ID @ TA = 25C ID @ TA = 70C IDM PD @TA = 25C PD @TA = 70C TJ , TSTG
Parameter
Drain-Source Voltage Gate-to-Source Voltage Continuous Drain Current, VGS @ 10V Continuous Drain Current, VGS @ 10V Pulsed Drain Current Maximum Power Dissipation Maximum Power Dissipation Linear Derating Factor Junction and Storage Temperature Range
Max.
30 12 61 51 244 87 61 0.58 -55 to + 175
Units
V V A W W W/C C
Thermal Resistance
Parameter
RJC RJA RJA Junction-to-Case Junction-to-Ambient (PCB mount)* Junction-to-Ambient
Typ.
--- --- ---
Max.
1.73 50 110
Units
C/W
* When mounted on 1" square PCB (FR-4 or G-10 Material) . For recommended footprint and soldering techniques refer to application note #AN-994
Notes through are on page 9
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1
8/22/00
IRFR/U3708
Static @ TJ = 25C (unless otherwise specified)
Parameter Drain-to-Source Breakdown Voltage V(BR)DSS/TJ Breakdown Voltage Temp. Coefficient V(BR)DSS RDS(on) VGS(th) IDSS IGSS Min. 30 --- --- Static Drain-to-Source On-Resistance --- --- Gate Threshold Voltage 0.6 --- Drain-to-Source Leakage Current --- Gate-to-Source Forward Leakage --- Gate-to-Source Reverse Leakage --- Typ. --- 0.028 8.5 10.0 15.0 --- --- --- --- --- Max. Units --- V --- V/C 12.5 14.0 m 30.0 2.0 V 20 A 100 200 nA -200 Conditions VGS = 0V, ID = 250A Reference to 25C, ID = 1mA VGS = 10V, ID = 15A VGS = 4.5V, ID = 12A VGS = 2.8V, ID = 7.5A VDS = VGS, ID = 250A VDS = 24V, VGS = 0V VDS = 24V, VGS = 0V, TJ = 125C VGS = 12V VGS = -12V
Dynamic @ TJ = 25C (unless otherwise specified)
Symbol
gfs Qg Qgs Qgd Qoss td(on) tr td(off) tf Ciss Coss Crss Parameter Forward Transconductance Total Gate Charge Gate-to-Source Charge Gate-to-Drain ("Miller") Charge Output Gate Charge Turn-On Delay Time Rise Time Turn-Off Delay Time Fall Time Input Capacitance Output Capacitance Reverse Transfer Capacitance Min. 49 --- --- --- --- --- --- --- --- --- --- --- Typ. --- 24 6.7 5.8 14 7.2 50 17.6 3.7 2417 707 52 Max. Units Conditions --- S VDS = 15V, ID = 50A --- ID = 24.8A --- nC VDS = 15V --- VGS = 4.5V 21 VGS = 0V, ID = 24.8A, VDS = 15V --- VDD = 15V --- ID = 24.8A ns --- RG = 0.6 --- VGS = 4.5V --- VGS = 0V --- VDS = 15V --- pF = 1.0MHz
Avalanche Characteristics
Symbol
EAS IAR
Parameter
Single Pulse Avalanche Energy Avalanche Current
Typ.
--- ---
Max.
213 62
Units
mJ A
Diode Characteristics
Symbol
IS
ISM
Parameter Continuous Source Current (Body Diode) Pulsed Source Current (Body Diode) Diode Forward Voltage Reverse Reverse Reverse Reverse Recovery Recovery Recovery Recovery Time Charge Time Charge
Min. Typ. Max. Units --- --- --- --- 61 A 244 1.3 --- 62 96 65 105 V ns nC ns nC
VSD trr Qrr trr Qrr
--- 0.88 --- 0.80 --- 41 --- 64 --- 43 --- 70
Conditions D MOSFET symbol showing the G integral reverse p-n junction diode. S TJ = 25C, IS = 31A, VGS = 0V TJ = 125C, IS = 31A, VGS = 0V TJ = 25C, IF = 31A, VR=20V di/dt = 100A/s TJ = 125C, IF = 31A, VR=20V di/dt = 100A/s
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IRFR/U3708
1000
VGS TOP 10.0V 5.0V 4.5V 4.0V 3.5V 3.3V 3.0V BOTTOM 2.7V
1000
VGS 10.0V 5.0V 4.5V 4.0V 3.5V 3.3V 3.0V BOTTOM 2.7V TOP
ID, Drain-to-Source Current (A)
100
ID, Drain-to-Source Current (A)
100
2.7V
2.7V
10
10
20s PULSE WIDTH Tj = 25C
1 0.1 1 10 100 1 0.1 1
20s PULSE WIDTH Tj = 175C
10 100
VDS, Drain-to-Source Voltage (V)
VDS, Drain-to-Source Voltage (V)
Fig 1. Typical Output Characteristics
Fig 2. Typical Output Characteristics
1000
2.5
RDS(on) , Drain-to-Source On Resistance (Normalized)
ID = 61A
I D , Drain-to-Source Current (A)
2.0
TJ = 25 C TJ = 175 C
1.5
100
1.0
0.5
10 2.0
V DS = 15V 20s PULSE WIDTH 5.0 3.0 4.0 6.0
0.0 -60 -40 -20 0
VGS = 10V
20 40 60 80 100 120 140 160 180
VGS, Gate-to-Source Voltage (V)
TJ , Junction Temperature ( C)
Fig 3. Typical Transfer Characteristics
Fig 4. Normalized On-Resistance Vs. Temperature
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IRFR/U3708
3500
2800
VGS , Gate-to-Source Voltage (V)
VGS = 0V, f = 1MHz Ciss = Cgs + Cgd , Cds SHORTED Crss = Cgd Coss = Cds + Cgd
10
ID = 24.8A
VDS = 15V
8
C, Capacitance (pF)
Ciss
2100
6
1400
C oss
4
700
2
0 1
C rss
10 100
0 0 10 20 30 40 50
VDS , Drain-to-Source Voltage (V)
QG , Total Gate Charge (nC)
Fig 5. Typical Capacitance Vs. Drain-to-Source Voltage
Fig 6. Typical Gate Charge Vs. Gate-to-Source Voltage
1000
1000
ISD , Reverse Drain Current (A)
OPERATION IN THIS AREA LIMITED BY R
DS(on)
10
TJ = 25 C
I D , Drain Current (A)
100
TJ = 175 C
10us
100
100us
10
1ms
1
0.1 0.2
V GS = 0 V
0.8 1.4 2.0 2.6
1 0.1
TC = 25 C TJ = 175 C Single Pulse
1 10
10ms
100
VSD ,Source-to-Drain Voltage (V)
VDS , Drain-to-Source Voltage (V)
Fig 7. Typical Source-Drain Diode Forward Voltage
Fig 8. Maximum Safe Operating Area
4
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IRFR/U3708
70
VDS
RD
LIMITED BY PACKAGE
60
VGS RG
D.U.T.
+
I D , Drain Current (A)
50
-VDD
10V
40
Pulse Width 1 s Duty Factor 0.1 %
30
Fig 10a. Switching Time Test Circuit
20
VDS
10
90%
0 25 50 75 100 125 150 175
TC , Case Temperature ( C)
10% VGS
td(on) tr t d(off) tf
Fig 9. Maximum Drain Current Vs. Case Temperature
Fig 10b. Switching Time Waveforms
10
Thermal Response (Z thJC )
1
D = 0.50 0.20 0.10 0.05
0.1
0.02 0.01
SINGLE PULSE (THERMAL RESPONSE)
0.01 0.00001
Notes: 1. Duty factor D = t 1 / t 2 2. Peak T J = P DM x Z thJC + TC 0.1 0.0001 0.001 0.01 1
P DM t1 t2
t1 , Rectangular Pulse Duration (sec)
Fig 11. Maximum Effective Transient Thermal Impedance, Junction-to-Case
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IRFR/U3708
RDS ( on ) , Drain-to-Source On Resistance ( )
0.025
( RDS(on), Drain-to -Source On Resistance )
0.017
0.015
0.020
0.013
0.015 VGS = 4.5V 0.010 VGS = 10V 0.005 0 50 100 150 200 250 300 ID , Drain Current ( A )
0.011
0.009
ID = 31A
0.007 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0
VGS, Gate -to -Source Voltage (V)
Fig 12. On-Resistance Vs. Drain Current
Current Regulator Same Type as D.U.T.
Fig 13. On-Resistance Vs. Gate Voltage
50K 12V .2F .3F
VGS
QGS
D.U.T. + V - DS
QG QGD
600
EAS , Single Pulse Avalanche Energy (mJ)
VG
VGS
3mA
Charge
IG ID
480
Current Sampling Resistors
ID 10A 20.7A BOTTOM 24.8A TOP
Fig 14a&b. Gate Charge Test Circuit and Waveform
360
240
15V
120
V (B R )D S S tp VD S L DRIVER
RG
20 V
D.U .T IA S
+ - VD D
0 25 50 75 100 125 150 175
A
IAS
tp
0.0 1
Starting TJ , Junction Temperature ( C)
Fig 15a&b. Unclamped Inductive Test circuit and Waveforms
Fig 15c. Maximum Avalanche Energy Vs. Drain Current
6
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IRFR/U3708
D-Pak (TO-252AA) Package Outline
Dimensions are shown in millimeters (inches)
6 .7 3 (.2 6 5 ) 6 .3 5 (.2 5 0 ) -A5 .4 6 (.2 1 5 ) 5 .2 1 (.2 0 5 ) 4 1 .2 7 (.0 5 0 ) 0 .8 8 (.0 3 5 )
2 .3 8 (.0 9 4 ) 2 .1 9 (.0 8 6 )
1 .1 4 (.0 4 5 ) 0 .8 9 (.0 3 5 ) 0 .5 8 (.0 2 3 ) 0 .4 6 (.0 1 8 )
6 .4 5 (.2 4 5 ) 5 .6 8 (.2 2 4 ) 6 .2 2 (.2 4 5 ) 5 .9 7 (.2 3 5 ) 1.0 2 (.0 4 0 ) 1.6 4 (.0 2 5 ) 1 2 3 0 .5 1 (.0 2 0 ) M IN . 1 0 .4 2 (.4 1 0 ) 9 .4 0 (.3 7 0 ) L E A D A S S IG N M E N T S 1 - GATE 2 - D R A IN 3 - S OU R CE 4 - D R A IN -B 1 .5 2 (.0 6 0 ) 1 .1 5 (.0 4 5 ) 3X 2X 1 .1 4 (.0 4 5 ) 0 .7 6 (.0 3 0 ) 2 .2 8 ( .0 9 0 ) 4 .5 7 ( .1 8 0 )
0 .8 9 (.0 3 5 ) 0 .6 4 (.0 2 5 ) 0 .2 5 ( .0 1 0 ) M AMB N O TE S :
0 .5 8 (.0 2 3 ) 0 .4 6 (.0 1 8 )
1 D IM E N S IO N IN G & T O L E R A N C IN G P E R A N S I Y 1 4 .5 M , 1 9 8 2 . 2 C O N T R O L L IN G D IM E N S IO N : IN C H . 3 C O N F O R M S T O J E D E C O U T L IN E T O -2 5 2 A A . 4 D IM E N S IO N S S H O W N A R E B E F O R E S O L D E R D IP , S O L D E R D IP M A X. + 0 .1 6 (.0 0 6 ) .
D-Pak (TO-252AA) Part Marking Information
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IRFR/U3708
I-Pak (TO-251AA) Package Outline
Dimensions are shown in millimeters (inches)
6 .7 3 (.26 5 ) 6 .3 5 (.25 0 ) -A 5 .4 6 (.2 1 5 ) 5 .2 1 (.2 0 5 ) 4 1 .2 7 ( .0 5 0 ) 0 .8 8 ( .0 3 5 )
2 .3 8 (.0 9 4 ) 2 .1 9 (.0 8 6 ) 0 .5 8 (.0 2 3 ) 0 .4 6 (.0 1 8 ) L E A D A S S IG N M E N T S 1 - GATE 2 - D R A IN 3 - SOURCE 4 - D R A IN
6 .4 5 (.2 4 5 ) 5 .6 8 (.2 2 4 ) 1 .5 2 (.0 6 0 ) 1 .1 5 (.0 4 5 ) 1 -B 2.2 8 (.0 9 0) 1.9 1 (.0 7 5) 9 .6 5 ( .3 8 0 ) 8 .8 9 ( .3 5 0 ) 2 3 6 .2 2 ( .2 4 5 ) 5 .9 7 ( .2 3 5 )
N O TE S : 1 D IM E N S IO N IN G & TO L E R A N C IN G P E R A N S I Y 1 4 .5M , 19 8 2 . 2 C O N T R O L L IN G D IM E N S IO N : IN C H . 3 C O N F O R MS TO J E D E C O U T L IN E TO -2 5 2 A A . 4 D IM E N S IO N S S H O W N A R E B E F O R E S O L D E R D IP , S O L D E R D IP M A X. + 0.1 6 (.0 0 6 ).
3X
1 .1 4 (.0 45 ) 0 .7 6 (.0 30 )
3X
0 .8 9 (.0 35 ) 0 .6 4 (.0 25 ) M AMB
1 .1 4 ( .0 4 5 ) 0 .8 9 ( .0 3 5 ) 0 .5 8 (.0 2 3 ) 0 .4 6 (.0 1 8 )
2 .28 (.0 9 0 ) 2X
0 .2 5 (.0 1 0 )
I-Pak (TO-251AA) Part Marking Information
8
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IRFR/U3708
D-Pak (TO-252AA) Tape & Reel Information
Dimensions are shown in millimeters (inches)
TR TRR TR L
1 6 .3 ( .6 4 1 ) 1 5 .7 ( .6 1 9 )
1 6 .3 ( .64 1 ) 1 5 .7 ( .61 9 )
1 2 .1 ( .4 7 6 ) 1 1 .9 ( .4 6 9 )
FE E D D IR E C TIO N
8 .1 ( .3 18 ) 7 .9 ( .3 12 )
FE E D D IR E C T IO N
N O T ES : 1 . C O N T R O L L IN G D IM EN S IO N : M IL L IM ET E R . 2 . AL L D IM EN SIO N S AR E SH O W N IN M IL L IM ET E R S ( IN C H E S ). 3 . O U TL IN E C O N F O R M S T O E IA -4 81 & E IA -54 1 .
1 3 IN C H
16 m m N O T ES : 1 . O U TL IN E C O N F O R M S T O E IA-4 8 1 .
Notes:
Repetitive rating; pulse width limited by
max. junction temperature.
Pulse width 300s; duty cycle 2%. Calculated continuous current based on maximum allowable
junction temperature. Package limitation current is 30A.
Starting TJ = 25C, L = 0.7 mH
RG = 25, IAS = 24.8 A.
IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105 IR EUROPEAN REGIONAL CENTRE: 439/445 Godstone Rd, Whyteleafe, Surrey CR3 OBL, UK Tel: ++ 44 (0)20 8645 8000 IR CANADA: 15 Lincoln Court, Brampton, Ontario L6T3Z2, Tel: (905) 453 2200 IR GERMANY: Saalburgstrasse 157, 61350 Bad Homburg Tel: ++ 49 (0) 6172 96590 IR ITALY: Via Liguria 49, 10071 Borgaro, Torino Tel: ++ 39 011 451 0111 IR JAPAN: K&H Bldg., 2F, 30-4 Nishi-Ikebukuro 3-Chome, Toshima-Ku, Tokyo 171 Tel: 81 (0)3 3983 0086 IR SOUTHEAST ASIA: 1 Kim Seng Promenade, Great World City West Tower, 13-11, Singapore 237994 Tel: ++ 65 (0)838 4630 IR TAIWAN:16 Fl. Suite D. 207, Sec. 2, Tun Haw South Road, Taipei, 10673 Tel: 886-(0)2 2377 9936 Data and specifications subject to change without notice. 8/00
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