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IRF6638PbF fiches techniques PDF

International Rectifier - DirectFET Power MOSFET

Numéro de référence IRF6638PbF
Description DirectFET Power MOSFET
Fabricant International Rectifier 
Logo International Rectifier 





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IRF6638PbF fiche technique
PD - 97239
IRF6638PbF
IRF6638TRPbFwww.DataSheet4U.com
l RoHs Compliant 
l Lead-Free (Qualified up to 260°C Reflow)
l Application Specific MOSFETs
l Ideal for CPU Core DC-DC Converters
l Low Conduction Losses
l High Cdv/dt Immunity
l Low Profile (<0.7mm)
l Dual Sided Cooling Compatible 
l Compatible with existing Surface Mount Techniques 
DirectFET™ Power MOSFET ‚
Typical values (unless otherwise specified)
VDSS
VGS
RDS(on)
RDS(on)
30V max ±20V max 2.2m@ 10V 3.0m@ 4.5V
Qg tot Qgd Qgs2 Qrr Qoss Vgs(th)
30nC 11nC 3.2nC 27nC 18.4nC 1.8V
MX
DirectFET™ ISOMETRIC
Applicable DirectFET Outline and Substrate Outline (see p.7,8 for details)
SQ SX ST
MQ MX MT MP
Description
The IRF6638PbF 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 0.6 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, when 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 IRF6638PbF balances both low resistance and low charge along with ultra low package inductance to reduce both conduction and
switching losses. The reduced total losses make this product ideal for high efficiency DC-DC converters that power the latest generation of
processors operating at higher frequencies. The IRF6638PbF has been optimized for parameters that are critical in synchronous buck
including Rds(on), gate charge and Cdv/dt-induced turn on immunity. The IRF6638PbF offers particularly low Rds(on) and high Cdv/dt
immunity for synchronous FET applications.
Absolute Maximum Ratings
Parameter
Max.
Units
VDS Drain-to-Source Voltage
30 V
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
±20
25
20 A
140
200
37 mJ
20 A
10 6.0
8
ID = 25A
5.0 ID= 20A
VDS= 24V
6
4.0
VDS= 15V
VDS= 6.0V
3.0
4
TJ = 125°C
2.0
2
0 TJ = 25°C
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
1.0
0.0
0
5 10 15 20 25 30 35
VGS, Gate -to -Source Voltage (V)
Notes:
Fig 1. Typical On-Resistance Vs. Gate Voltage
 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
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 = 0.19mH, RG = 25, IAS = 20A.
1
07/13/06

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