Applications High Frequency DC-DC Isolated Converters with Synchronous
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95019A
Applications High Frequency DC-DC Isolated Converters with Synchronous Rectification Telecom Industrial
IRFR3707PbF IRFRU3707PbF
HEXFET® Power MOSFET
VDSS
RDS(on)
High Frequency Buck Converters Computer Processor Power Lead-Free
Benefits
Ultra-Low RDS(on) Very Gate Impedance Fully Characterized Avalanche Voltage Current
D-Pak IRFR3707 I-Pak IRFU3707
Absolute Maximum Ratings
Symbol
25°C 70°C 25°C 70°C TSTG
Parameter
Drain-Source Voltage Gate-to-Source Voltage Continuous Drain Current, Continuous Drain Current, Pulsed Drain Current Maximum Power Dissipation Maximum Power Dissipation Linear Derating Factor Junction Storage Temperature Range
Max.
0.59
Units
mW/°C
Thermal Resistance
Parameter
Junction-to-Case Junction-to-Ambient (PCB mount)* Junction-to-Ambient
Typ.
Max.
1.73
Units
°C/W
When mounted square (FR-4 G-10 Material) recommended footprint soldering techniques refer application note #AN-994
Notes through page
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12/13/04
IRFR/U3707PbF
Static 25°C (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. Static Drain-to-Source On-Resistance Gate Threshold Voltage Drain-to-Source Leakage Current Gate-to-Source Forward Leakage Gate-to-Source Reverse Leakage Typ. 0.027 13.2 Max. Units Conditions 250µA V/°C Reference 25°C, 10V, 17.5 4.5V, VGS, 250µA 24V, 24V, 125°C -200 -16V
Dynamic 25°C (unless otherwise specified)
Symbol
Qoss td(on) td(off) 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. Typ. 11.8 1990 Max. Units Conditions 15V, 49.6A 24.8A 4.5V 24.8A 4.5V 1.0MHz
Avalanche Characteristics
Symbol
Parameter
Single Pulse Avalanche Energy Avalanche Current
Typ.
Max.
Units
Diode Characteristics
Symbol
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 0.88
Conditions MOSFET symbol showing integral reverse junction diode. 25°C, 31A, 125°C, 31A, 25°C, 31A, VR=20V di/dt 100A/µs 125°C, 31A, VR=20V di/dt 100A/µs
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IRFR/U3707PbF
1000
10.0V 9.0V 8.0V 7.0V 6.0V 5.0V 4.5V BOTTOM 3.5V
1000
10.0V 9.0V 8.0V 7.0V 6.0V 5.0V 4.5V BOTTOM 3.5V
Drain-to-Source Current
Drain-to-Source Current
3.5V
3.5V
20µs PULSE WIDTH 25°C
20µs PULSE WIDTH 175°C
VDS, Drain-to-Source Voltage
VDS, Drain-to-Source Voltage
Typical Output Characteristics
Typical Output Characteristics
1000
RDS(on) Drain-to-Source Resistance (Normalized)
Drain-to-Source Current
20µs PULSE WIDTH
Gate-to-Source Voltage
Junction Temperature
Typical Transfer Characteristics
Normalized On-Resistance Temperature
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IRFR/U3707PbF
3000
2500
Gate-to-Source Voltage
1MHz Ciss SHORTED Crss Coss
24.8A
Capacitance (pF)
2000
Ciss
1500
Coss
1000
Crss
Drain-to-Source Voltage
Total Gate Charge (nC)
Typical Capacitance Drain-to-Source Voltage
Typical Gate Charge Gate-to-Source Voltage
1000
1000
Reverse Drain Current
OPERATION THIS AREA LIMITED RDS(on)
Drain Current
10us
100us
10ms
175° Single Pulse
,Source-to-Drain Voltage
VDS, Drain-to-Source Voltage
Typical Source-Drain Diode Forward Voltage
Maximum Safe Operating Area
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IRFR/U3707PbF
LIMITED PACKAGE
D.U.T.
Drain Current
-VDD
Pulse Width Duty Factor
10a. Switching Time Test Circuit
Case Temperature
Maximum Drain Current Case Temperature
td(on)
d(off)
10b. Switching Time Waveforms
Thermal Response thJC
0.50 0.20 0.10 0.05 0.02 0.01 SINGLE PULSE (THERMAL RESPONSE) Notes: Duty factor Peak thJC 0.0001 0.001 0.01
0.01 0.00001
Rectangular Pulse Duration (sec)
Maximum Effective Transient Thermal Impedance, Junction-to-Ambient
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IRFR/U3707PbF
Drain-to-Source Resistance
RDS(on) Drain-to -Source Resistance
0.10 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0.00 Drain Current 4.5V
0.013
0.012
0.011
0.010
0.009 10.0
VGS, Gate -Source Voltage
On-Resistance Drain Current
Current Regulator Same Type D.U.T.
On-Resistance Gate Voltage
.2µF .3µF
D.U.T.
Single Pulse Avalanche Energy (mJ)
Charge
10.1A 20.7A BOTTOM 24.8A
Current Sampling Resistors
14a&b. Basic Gate Charge Test Circuit Waveforms
V(BR)DSS
DRIVER
D.U.T
0.01
Starting Junction Temperature
15a&b. Unclamped Inductive Test Circuit Waveforms
15c. Maximum Avalanche Energy Drain Current
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IRFR/U3707PbF
D-Pak (TO-252AA) Package Outline
Dimensions shown millimeters (inches)
D-Pak (TO-252AA) Part Marking Information
EXAMPLE: THIS IRFR120 EMBLY CODE 1234 EMBLED 1999 EMBLY LINE Note: sembly line position indicates "Lead-Free" PART NUMBER INTERNAT IONAL RECTIF LOGO
IRFU120 916A
EMBLY CODE
DATE CODE YEAR 1999 WEEK LINE
PART NUMBER INTERNAT IONAL RECTIF LOGO
IRFU120
DATE CODE IGNATES LEAD-F PRODUCT (OPT IONAL) YEAR 1999 WEEK EMBLY CODE
EMBLY CODE
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IRFR/U3707PbF
I-Pak (TO-251AA) Package Outline
Dimensions shown millimeters (inches)
I-Pak (TO-251AA) Part Marking Information
EXAMPLE: IRFU120 ASSEMBLY CODE 5678 SEMBLED 1999 ASSEMBLY LINE Note: assembly line position indicates "Lead-Free" ERNAT IONAL RECT IFIER LOGO PART NUMBER
U120 919A
EMBLY CODE
CODE YEAR 1999 WEEK LINE
ERNAT IONAL RECT IFIER LOGO PART NUMBER
IRFU120
SEMBLY CODE
CODE DESIGNAT LEAD-FREE PRODUCT (OPT IONAL) YEAR 1999 WEEK SEMBLY CODE
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IRFR/U3707PbF
D-Pak (TO-252AA) Tape Reel Information
Dimensions shown millimeters (inches)
16.3 .641 15.7 .619
16.3 .641 15.7 .619
12.1 .476 11.9 .469
FEED DIRECTION
.318 .312
FEED DIRECTION
NOTES CONTROLLING DIMENSION MILLIMETER. DIMENSIONS SHOWN MILLIMETERS INCHES OUTLINE CONFORMS EIA-481 EIA-541.
INCH
NOTES OUTLINE CONFORMS EIA-481.
Notes:
Repetitive rating; pulse width limited
max. junction temperature.
Pulse width 300µs; duty cycle Calculated continuous current based maximum allowable
junction temperature. Package limitation current
Starting 25°C,
24.8
Data specifications subject change without notice.
WORLD HEADQUARTERS: Kansas St., Segundo, California 90245, Tel: (310) 252-7105 Fax: (310) 252-7903 Visit www.irf.com sales contact information. 12/04
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