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PDF IRF6798MPBF Data sheet ( Hoja de datos )

Número de pieza IRF6798MPBF
Descripción HEXFET Power MOSFET plus Schottky Diode
Fabricantes International Rectifier 
Logotipo International Rectifier Logotipo



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PD - 97433B
IRF6798MPbFwww.DataSheet4U.com
IRF6798MTRPbF
HEXFET® Power MOSFET plus Schottky Diode ‚
l RoHs Compliant Containing No Lead and Bromide 
l Integrated Monolithic Schottky Diode
l Low Profile (<0.7 mm)
l Dual Sided Cooling Compatible 
l Low Package Inductance
Typical values (unless otherwise specified)
VDSS
VGS
RDS(on)
RDS(on)
25V max ±20V max 0.95m@ 10V 1.6m@ 4.5V
Qg tot Qgd Qgs2 Qrr Qoss Vgs(th)
50nC 16nC 6.8nC 64nC 38nC 1.8V
l Optimized for High Frequency Switching 
l Ideal for CPU Core DC-DC Converters
l Optimized for Sync. FET socket of Sync. Buck Converter
l Low Conduction and Switching Losses
l Compatible with existing Surface Mount Techniques 
l 100% Rg tested
MX
DirectFET™ ISOMETRIC
Applicable DirectFET Outline and Substrate Outline (see p.7,8 for details)
SQ SX
Description
ST
MQ MX MT MP
The IRF6798MPbF combines the latest HEXFET® Power MOSFET Silicon technology with the advanced DirectFETTM packaging to achieve
the lowest on-state resistance in a package that has the footprint of a SO-8 and only 0.7 mm profile. The DirectFET package is compatible
with existing layout geometries used in power applications, PCB assembly equipment and vapor phase, infra-red or convection soldering
techniques. Application note AN-1035 is followed regarding the manufacturing methods and processes. The DirectFET package allows dual
sided cooling to maximize thermal transfer in power systems, improving previous best thermal resistance by 80%.
The IRF6798MPbF balances industry leading on-state resistance while minimizing gate charge along with low gate resistance to reduce both
conduction and switching losses. This part contains an integrated Schottky diode to reduce the Qrr of the body drain diode further reducing
the losses in a Synchronous Buck circuit. The reduced losses make this product ideal for high frequency/high efficiency DC-DC converters
that power high current loads such as the latest generation of microprocessors. The IRF6798MPbF has been optimized for parameters that
are critical in synchronous buck converter’s Sync FET sockets.
Absolute Maximum Ratings
Parameter
VDS Drain-to-Source Voltage
VGS
ID @ TA = 25°C
ID @ TA = 70°C
ID @ TC = 25°C
IDM
EAS
IAR
Gate-to-Source Voltage
eContinuous Drain Current, VGS @ 10V
eContinuous Drain Current, VGS @ 10V
fContinuous Drain Current, VGS @ 10V
gPulsed Drain Current
hSingle Pulse Avalanche Energy
ÃgAvalanche Current
Max.
25
±20
37
30
197
300
220
30
Units
V
A
mJ
A
5 14.0
4
ID = 37A
12.0 ID= 30A VDS= 20V
10.0
VDS= 13V
3 8.0
2
TJ = 125°C
1
TJ = 25°C
0
2 4 6 8 10 12 14 16 18 20
VGS, Gate -to -Source Voltage (V)
Fig 1. Typical On-Resistance vs. Gate Voltage
Notes:
 Click on this section to link to the appropriate technical paper.
‚ Click on this section to link to the DirectFET Website.
ƒ Surface mounted on 1 in. square Cu board, steady state.
www.irf.com
6.0
4.0
2.0
0.0
0
25 50 75 100 125 150
QG Total Gate Charge (nC)
Fig 2. Typical Total Gate Charge vs. Gate-to-Source Voltage
„ TC measured with thermocouple mounted to top (Drain) of part.
… Repetitive rating; pulse width limited by max. junction temperature.
† Starting TJ = 25°C, L = 0.50mH, RG = 25, IAS = 30A.
1
12/10/09

1 page




IRF6798MPBF pdf
1000
100
10
TJ = 150°C
1
TJ = 25°C
TJ = -40°C
VGS = 0V
0
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1
VSD, Source-to-Drain Voltage (V)
Fig 10. Typical Source-Drain Diode Forward Voltage
200
1000
100
10
1
IRF6798MTRPbFwww.DataSheet4U.com
OPERATION IN THIS AREA LIMITED
BY RDS(on)
100µsec
1msec
10msec
DC
0.1 TA = 25°C
TJ = 150°C
Single Pulse
0.01
0.01
0.10
1.00
10.00 100.00
VDS, Drain-to-Source Voltage (V)
Fig11. Maximum Safe Operating Area
2.5
150
2.0
100
ID = 10mA
1.5
50
0
25 50 75 100 125 150
TC , Case Temperature (°C)
Fig 12. Maximum Drain Current vs. Case Temperature
900
800
700
600
1.0
-75 -50 -25 0 25 50 75 100 125 150
TJ , Temperature ( °C )
Fig 13. Typical Threshold Voltage vs. Junction
Temperature
ID
TOP 8.8A
19A
BOTTOM 30A
500
400
300
200
100
0
25 50 75 100 125 150
Starting TJ , Junction Temperature (°C)
www.irf.com
Fig 14. Maximum Avalanche Energy vs. Drain Current
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