PD - 97093
IRF6621PbF
IRF6621TRPbF
DirectFET Power MOSFET
Typical values (unless otherwise specified)
l RoHS Compliant
VDSS
VGS
RDS(on)
RDS(on)
l Lead-Free (Qualified up to 260°C Reflow)
l Application Specific MOSFETs
7.0mΩ@ 10V 9.3mΩ@ 4.5V
30V max ±20V max
Qg tot Qgd
Qgs2
Qrr
Qoss Vgs(th)
l Ideal for CPU Core DC-DC Converters
l Low Conduction Losses and Switching Losses
l Low Profile (<0.7mm)
11.7nC 4.2nC 1.0nC
10nC
6.9nC
1.8V
l Dual Sided Cooling Compatible
l Compatible with existing Surface Mount Techniques
DirectFET ISOMETRIC
SQ
Applicable DirectFET Outline and Substrate Outline (see p.7,8 for details)
SQ
SX
ST
MQ
MX
MT
MP
Description
The IRF6621PbF 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 MICRO-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, when application note AN-1035 is followed regarding the manufacturing methods and processes. The DirectFET pack-
age allows dual sided cooling to maximize thermal transfer in power systems, improving previous best thermal resistance by 80%.
The IRF6621PbF 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 IRF6621PbF has been optimized for parameters that are critical in synchronous buck
operating from 12 volt bus converters including Rds(on) and gate charge to minimize losses in the control FET socket.
Absolute Maximum Ratings
Max.
30
Parameter
Units
V
VDS
Drain-to-Source Voltage
±20
12
V
Gate-to-Source Voltage
GS
Continuous Drain Current, VGS @ 10V
Continuous Drain Current, VGS @ 10V
Continuous Drain Current, VGS @ 10V
Pulsed Drain Current
I
I
I
I
@ TA = 25°C
D
D
D
9.6
55
@ TA = 70°C
@ TC = 25°C
A
96
DM
EAS
IAR
13
Single Pulse Avalanche Energy
Avalanche Current
mJ
A
9.6
25
20
15
10
5
12
10
8
I = 9.6A
D
V
= 24V
I
= 12A
DS
D
VDS= 15V
6
T
= 125°C
J
4
2
T
= 25°C
J
0
2.0
4.0
6.0
8.0
10.0
0
4
8
12
16
20
24
28
V
, Gate-to-Source Voltage (V)
GS
Fig 1. Typical On-Resistance Vs. Gate Voltage
Q
Total Gate Charge (nC)
G
Fig 2. Typical Total Gate Charge vs Gate-to-Source Voltage
Notes:
TC measured with thermocouple mounted to top (Drain) of part.
ꢀ Repetitive rating; pulse width limited by max. junction temperature.
Starting TJ = 25°C, L = 0.29mH, RG = 25Ω, IAS = 9.6A.
Click on this section to link to the appropriate technical paper.
Click on this section to link to the DirectFET Website.
Surface mounted on 1 in. square Cu board, steady state.
www.irf.com
1
5/24/06