DIGITAL AUDIO MOSFET
IRF6641TRPbF
Key Parameters
Features
Latest MOSFET silicon technology
Key parameters optimized for Class-D audio amplifier
applications
Low RDS(on) for improved efficiency
Low Qg for better THD and improved efficiency
Low Qrr for better THD and lower EMI
Low package stray inductance for reduced ringing and lower
EMI
VDS
200
V
R
DS(ON) typ. @ VGS = 10V
51
34
m
nC
Qg typ.
R
G(int) typ.
1.0
Can deliver up to 400 W per channel into 8load in half-bridge
configuration amplifier
Dual sided cooling compatible
Compatible with existing surface mount technologies
RoHS compliant, halogen-free
DirectFET® ISOMETRIC
Lead-free (qualified up to 260°C reflow)
MZ
Applicable DirectFET Outline and Substrate Outline (see p.6, 7 for details)
SQ
SX
ST
SH
MQ
MX
MT
MN
MZ
Description
This Digital Audio MOSFET is specifically designed for Class-D audio amplifier applications. This MOSFET utilizes the latest
processing techniques to achieve low on-resistance per silicon area. Furthermore, gate charge, body-diode reverse recovery and
internal gate resistance are optimized to improve key Class-D audio amplifier performance factors such as efficiency, THD, and EMI.
The IRF6641PbF device utilizes DirectFET® packaging technology. DirectFET® packaging technology offers lower parasitic
inductance and resistance when compared to conventional wirebonded SOIC packaging. Lower inductance improves EMI
performance by reducing the voltage ringing that accompanies fast current transients. 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 method and processes. The DirectFET® package
also allows dual sided cooling to maximize thermal transfer in power systems, improving thermal resistance and power dissipation.
These features combine to make this MOSFET a highly efficient, robust and reliable device for Class-D audio amplifier applications.
Base part number
Package Type
Standard Pack
Orderable Part Number
Form
Tape and Reel
Quantity
4800
IRF6641PbF
DirectFET Medium Can
IRF6641TRPbF
Absolute Maximum Ratings
Parameter
Gate-to-Source Voltage
Max.
±20
Units
V
VGS
ID @ TC = 25°C
ID @ TA = 25°C
ID @ TA = 70°C
IDM
Continuous Drain Current, VGS @ 10V
Continuous Drain Current, VGS @ 10V
Continuous Drain Current, VGS @ 10V
Pulsed Drain Current
Power Dissipation
26
4.6
3.7
A
37
PD @TC = 25°C
PD @TA = 25°C
PD @TA = 70°C
EAS
89
Power Dissipation
2.8
1.8
46
W
Power Dissipation
Single Pulse Avalanche Energy
Avalanche Current
mJ
A
IAR
11
Linear Derating Factor
0.022
-40 to + 150
W/°C
°C
TJ
Operating Junction and
TSTG
Storage Temperature Range
Notes through are on page 9
1
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© 2013 International Rectifier
July 1, 2013