PD -96907A
IRF6614
DirectFET Power MOSFET
Typical values (unless otherwise specified)
l Application Specific MOSFETs
l Lead and Bromide Free
VDSS
VGS
RDS(on)
RDS(on)
5.9mΩ@ 10V 7.1mΩ@ 4.5V
40V max ±20V max
l Low Profile (<0.7 mm)
l Dual Sided Cooling Compatible
l Ultra Low Package Inductance
l Optimized for High Frequency Switching above 1MHz
Qg tot Qgd
Qgs2
Qrr
Qoss Vgs(th)
19nC
6.0nC 1.4nC 5.5nC 9.5nC
1.8V
l Ideal for CPU Core and Telecom Synchronous
Rectification in DC-DC Converters
l Optimized for Control FET socket of Sync. Buck Converter
l Low Conduction Losses
l Compatible with existing Surface Mount Techniques
DirectFET ISOMETRIC
ST
Applicable DirectFET Outline and Substrate Outline (see p.7,8 for details)
SQ
SX
ST
MQ
MX
MT
Description
The IRF6614 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 package allows dual sided cooling to maximize thermal transfer in power systems, improving previous best thermal
resistance by 80%.
The IRF6614 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 genera-
tion of processors operating at higher frequencies. The IRF6614 has been optimized for parameters that are critical in synchronous
buck operating from 12 volt buss converters including Rds(on) and gate charge to minimize losses in the control FET socket.
Absolute Maximum Ratings
Max.
40
Parameter
Units
V
VDS
Drain-to-Source Voltage
±20
12.7
10.1
55
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
@ TA = 70°C
@ TC = 25°C
A
102
22
DM
EAS
IAR
Single Pulse Avalanche Energy
Avalanche Current
mJ
A
10.2
12
10
8
20
16
12
8
I = 10.2A
D
V
= 32V
I
= 12.7A
DS
VDS= 20V
D
6
T
T
= 125°C
= 25°C
J
4
J
2
4
0
2.0
4.0
6.0
8.0
10.0
0
10
Q
20
30
40
50
V
, Gate-to-Source Voltage (V)
GS
Total Gate Charge (nC)
G
Fig 1. Typical On-Resistance Vs. Gate Voltage
Fig 2. Typical Total Gate Charge vs Gate-to-Source Voltage
Notes:
Click on this section to link to the appropriate technical paper.
Click on this section to link to the DirectFET MOSFETs
Repetitive rating; pulse width limited by max. junction temperature.
Starting TJ = 25°C, L = 0.43mH, RG = 25Ω, IAS = 10.2A.
Surface mounted on 1 in. square Cu board, steady state.
TC measured with thermocouple mounted to top (Drain) of part.
www.irf.com
1
11/8/04