IRF IRF6648PBF

PD - 97225A
IRF6648PbF
IRF6648TRPbF
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DirectFET™ Power MOSFET ‚
RoHs Compliant 
Lead-Free (Qualified up to 260°C Reflow)
Application Specific MOSFETs
Optimized for Synchronous Rectification for
5V to 12V outputs
Low Conduction Losses
Ideal for 24V input Primary Side Forward Converters
Low Profile (<0.7mm)
Dual Sided Cooling Compatible 
Compatible with existing Surface Mount Techniques 
Typical values (unless otherwise specified)
VDSS
RDS(on)
VGS
5.5mΩ@ 10V
60V max ±20V max
Qg
tot
36nC
Qgd
Qgs2
Qrr
Qoss
Vgs(th)
14nC
2.7nC
37nC
21nC
4.0V
DirectFET™ ISOMETRIC
MN
Applicable DirectFET Outline and Substrate Outline (see p.7,8 for details)
SH
SJ
SP
MZ
MN
Description
The IRF6648PbF 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 IRF6648PbF is an optimized switch for use in synchronous rectification circuits with 5-12Vout, and is also ideal for use as
a primary side switch in 24Vin forward converters. The reduced total losses in the device coupled with the high level of thermal
performance enables high efficiency and low temperatures, which are key for system reliability improvements, and makes this
device ideal for high performance.
Absolute Maximum Ratings
Parameter
Drain-to-Source Voltage
Gate-to-Source Voltage
Continuous Drain Current, VGS @ 10V
Continuous Drain Current, VGS @ 10V
VGS
ID @ TC = 25°C
ID @ TC = 70°C
IDM
EAS
IAR
g
Pulsed Drain Current
Single Pulse Avalanche Energy
Avalanche Current
g
h
Typical RDS(on) (mΩ)
60
ID = 17A
50
40
30
20
T J = 125°C
10
T J = 25°C
0
4
6
8
10
12
14
16
VGS, Gate -to -Source Voltage (V)
Fig 1. Typical On-Resistance 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 Website.
ƒ Surface mounted on 1 in. square Cu board, steady state.
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f
f
VGS, Gate-to-Source Voltage (V)
VDS
Max.
Units
60
±20
86
69
260
47
34
V
A
mJ
A
12.0
ID= 17A
10.0
VDS= 48V
VDS= 30V
8.0
6.0
4.0
2.0
0.0
0
5
10
15
20
25
30
35
40
QG, Total Gate Charge (nC)
Fig 2. 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 = 0.082mH, RG = 25Ω, IAS = 34A.
1
08/24/06
IRF6648PbF
Electrical Characteristic @ TJ = 25°C (unless otherwise specified)
Parameter
Min.
Conditions
Typ. Max. Units
BVDSS
Drain-to-Source Breakdown Voltage
60
–––
–––
∆ΒVDSS/∆TJ
RDS(on)
Breakdown Voltage Temp. Coefficient
–––
0.076
–––
Static Drain-to-Source On-Resistance
–––
5.5
7.0
VGS = 0V, ID = 250µA
V
V/°C Reference to 25°C, ID = 1mA
mΩ VGS = 10V, ID = 17A i
VDS = VGS, ID = 150µA
VGS(th)
Gate Threshold Voltage
3.0
4.0
4.9
V
∆VGS(th)/∆TJ
IDSS
Gate Threshold Voltage Coefficient
–––
-11
–––
mV/°C
Drain-to-Source Leakage Current
–––
–––
20
µA
VDS = 60V, VGS = 0V
–––
–––
250
IGSS
Gate-to-Source Forward Leakage
–––
–––
100
nA
VGS = 20V
Gate-to-Source Reverse Leakage
–––
–––
-100
Forward Transconductance
31
–––
–––
gfs
Qg
VDS = 48V, VGS = 0V, TJ = 125°C
VGS = -20V
S
VDS = 10V, ID = 17A
Total Gate Charge
–––
36
50
Qgs1
Pre-Vth Gate-to-Source Charge
–––
7.5
–––
Qgs2
Post-Vth Gate-to-Source Charge
–––
2.7
–––
Qgd
Gate-to-Drain Charge
–––
14
21
ID = 17A
Qgodr
Gate Charge Overdrive
Switch Charge (Qgs2 + Qgd)
–––
12
–––
See Fig. 15
Qsw
–––
17
–––
Qoss
Output Charge
–––
21
–––
nC
RG (Internal)
Gate Resistance
–––
1.0
–––
Ω
td(on)
Turn-On Delay Time
–––
16
–––
tr
Rise Time
–––
29
–––
td(off)
Turn-Off Delay Time
–––
28
–––
tf
Fall Time
–––
13
–––
Ciss
Input Capacitance
–––
2120
–––
Coss
Output Capacitance
–––
600
–––
Crss
Reverse Transfer Capacitance
–––
170
–––
Coss
Output Capacitance
–––
2450
–––
ƒ = 1.0MHz
VGS = 0V, VDS = 1.0V, f=1.0MHz
Coss
Output Capacitance
–––
440
–––
VGS = 0V, VDS = 48V, f=1.0MHz
Min.
Typ. Max. Units
–––
–––
VDS = 30V
nC
VGS = 10V
VDS = 16V, VGS = 0V
VDD = 30V, VGS = 10Vi
ID = 17A
ns
RG= 6.2Ω
See Fig. 16 & 17
VGS = 0V
pF
VDS = 25V
Diode Characteristics
Parameter
IS
Continuous Source Current
ISM
Pulsed Source Current
MOSFET symbol
81
(Body Diode)
A
–––
–––
260
Conditions
showing the
integral reverse
(Body Diode)g
p-n junction diode.
TJ = 25°C, IS = 17A, VGS = 0V i
VSD
Diode Forward Voltage
–––
–––
1.3
trr
Reverse Recovery Time
–––
31
47
ns
TJ = 25°C, IF = 17A, VDD = 30V
Qrr
Reverse Recovery Charge
–––
37
56
nC
di/dt = 100A/µs iSee Fig. 18
V
Notes:
… Repetitive rating; pulse width limited by max. junction temperature.
‡ Pulse width ≤ 400µs; duty cycle ≤ 2%.
2
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IRF6648PbF
Absolute Maximum Ratings
e
e
f
Max.
Units
2.8
1.8
89
270
-40 to + 150
W
Parameter
Power Dissipation
Power Dissipation
Power Dissipation
Peak Soldering Temperature
Operating Junction and
Storage Temperature Range
PD @TA = 25°C
PD @TA = 70°C
PD @TC = 25°C
TP
TJ
TSTG
°C
Thermal Resistance
Parameter
em
km
fm
RθJA
RθJA
RθJC
RθJ-PCB
Junction-to-Ambient
Junction-to-Ambient
Junction-to-Case
Junction-to-PCB Mounted
Linear Derating Factor
e
Typ.
Max.
–––
12.5
–––
1.0
45
–––
1.4
–––
Units
°C/W
0.022
W/°C
Thermal Response ( Z thJC )
10
1
D = 0.50
0.20
0.1
0.10
0.05
τJ
0.02
0.01
0.01
R1
R1
τJ
τ1
R2
R2
R3
R3
τC
τ1
τ2
τ2
Ci= τi/Ri
Ci= τi/Ri
SINGLE PULSE
( THERMAL RESPONSE )
τ3
τ3
τC
Ri (°C/W) τi (sec)
0.17199 0.000044
0.67673 0.001660
0.54961 0.007649
Notes:
1. Duty Factor D = t1/t2
2. Peak Tj = P dm x Zthjc + Tc
0.001
1E-006
1E-005
0.0001
0.001
0.01
0.1
t1 , Rectangular Pulse Duration (sec)
Fig 3. Maximum Effective Transient Thermal Impedance, Junction-to-Case
Notes:
‰ Used double sided cooling , mounting pad.
Š Mounted on minimum footprint full size board with metalized
back and with small clip heatsink.
ƒ Surface mounted on 1 in. square Cu
(still air).
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‹ Rθ is measured at TJ of approximately 90°C.
‰ Mounted to a PCB with
small clip heatsink (still air)
Š Mounted on minimum
footprint full size board with
metalized back and with small
clip heatsink (still air)
3
IRF6648PbF
1000
1000
BOTTOM
VGS
15V
10V
8.0V
7.0V
6.0V
VGS
15V
10V
8.0V
7.0V
6.0V
TOP
ID, Drain-to-Source Current (A)
ID, Drain-to-Source Current (A)
TOP
100
BOTTOM
100
10
6.0V
6.0V
10
≤60µs PULSE WIDTH
≤60µs PULSE WIDTH
Tj = 150°C
Tj = 25°C
1
1
0.1
1
10
0.1
VDS, Drain-to-Source Voltage (V)
Fig 4. Typical Output Characteristics
2.0
ID = 86A
Typical RDS(on) (Normalized)
ID, Drain-to-Source Current (A)
VDS = 10V
≤60µs PULSE WIDTH
100
T J = 150°C
T J = 25°C
T J = -40°C
10
1
0.1
VGS = 10V
1.5
1.0
0.5
2
4
6
8
10
30
VGS = 0V,
f = 1 MHZ
Ciss = C gs + Cgd, C ds SHORTED
Crss = C gd
T J = 25°C
Vgs = 7.0V
Vgs = 8.0V
Vgs = 10V
Vgs = 15V
25
Typical RDS(on) ( mΩ)
Coss = Cds + Cgd
Ciss
Coss
1000
20 40 60 80 100 120 140 160
Fig 7. Normalized On-Resistance vs. Temperature
Fig 6. Typical Transfer Characteristics
10000
-60 -40 -20 0
T J , Junction Temperature (°C)
VGS, Gate-to-Source Voltage (V)
C, Capacitance (pF)
10
Fig 5. Typical Output Characteristics
1000
Crss
20
15
10
5
0
100
1
10
100
VDS, Drain-to-Source Voltage (V)
Fig 8. Typical Capacitance vs.Drain-to-Source Voltage
4
1
V DS, Drain-to-Source Voltage (V)
0
20
40
60
80
100
ID, Drain Current (A)
Fig 9. Normalized Typical On-Resistance vs.
Drain Current and Gate Voltage
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IRF6648PbF
1000
T J = 150°C
T J = 25°C
T J = -40°C
100
ID, Drain-to-Source Current (A)
ISD, Reverse Drain Current (A)
1000
OPERATION IN THIS AREA
LIMITED BY R DS(on)
100µsec
100
10
1
1msec
10
10msec
1
Tc = 25°C
Tj = 150°C
Single Pulse
VGS = 0V
0
0.1
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
0
VSD, Source-to-Drain Voltage (V)
10
100
VDS, Drain-to-Source Voltage (V)
Fig11. Maximum Safe Operating Area
Fig 10. Typical Source-Drain Diode Forward Voltage
6.0
Typical VGS(th) , Gate threshold Voltage (V)
90
80
70
ID, Drain Current (A)
1
60
50
40
30
20
10
5.0
4.0
3.0
ID = 150µA
ID = 250µA
ID = 1.0mA
ID = 1.0A
2.0
0
25
50
75
100
125
-75 -50 -25
150
0
25
50
75 100 125 150
T J , Temperature ( °C )
T C , Case Temperature (°C)
Fig 13. Threshold Voltage vs. Temperature
Fig 12. Maximum Drain Current vs. Case Temperature
EAS , Single Pulse Avalanche Energy (mJ)
200
ID
12A
18A
BOTTOM 34A
180
TOP
160
140
120
100
80
60
40
20
0
25
50
75
100
125
150
Starting T J , Junction Temperature (°C)
Fig 14. Maximum Avalanche Energy vs. Drain Current
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5
IRF6648PbF
Current Regulator
Same Type as D.U.T.
Id
Vds
50KΩ
Vgs
.2µF
12V
.3µF
+
V
- DS
D.U.T.
Vgs(th)
VGS
3mA
IG
ID
Qgs1 Qgs2
Current Sampling Resistors
Fig 15a. Gate Charge Test Circuit
Qgd
Qgodr
Fig 15b. Gate Charge Waveform
V(BR)DSS
15V
DRIVER
L
VDS
tp
D.U.T
V
RGSG
+
V
- DD
IAS
20V
tp
A
I AS
0.01Ω
Fig 16b. Unclamped Inductive Waveforms
Fig 16a. Unclamped Inductive Test Circuit
LD
VDS
VDS
90%
+
VDD D.U.T
VGS
Pulse Width < 1µs
Duty Factor < 0.1%
Fig 17a. Switching Time Test Circuit
6
10%
VGS
td(on)
tr
td(off)
tf
Fig 17b. Switching Time Waveforms
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IRF6648PbF
D.U.T
Driver Gate Drive
+
ƒ
+
‚
-
„
*
D.U.T. ISD Waveform
Reverse
Recovery
Current
+

RG
•
•
•
•
di/dt controlled by RG
Driver same type as D.U.T.
ISD controlled by Duty Factor "D"
D.U.T. - Device Under Test
VDD
P.W.
Period
VGS=10V
Circuit Layout Considerations
• Low Stray Inductance
• Ground Plane
• Low Leakage Inductance
Current Transformer
-
D=
Period
P.W.
+
Body Diode Forward
Current
di/dt
D.U.T. VDS Waveform
Diode Recovery
dv/dt
Re-Applied
Voltage
Body Diode
VDD
Forward Drop
Inductor
Current
Inductor Curent
-
Ripple ≤ 5%
ISD
* VGS = 5V for Logic Level Devices
Fig 18. Diode Reverse Recovery Test Circuit for N-Channel
HEXFET® Power MOSFETs
DirectFET™ Substrate and PCB Layout, MN Outline ƒ
(Medium Size Can, N-Designation).
Please see DirectFET application note AN-1035 for all details regarding the assembly of DirectFET.
This includes all recommendations for stencil and substrate designs.
G = GATE
D = DRAIN
S = SOURCE
D
S
D
G
D
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S
D
7
IRF6648PbF
DirectFET™ Outline Dimension, MN Outline
(Medium Size Can, N-Designation).
Please see DirectFET application note AN-1035 for all details regarding the assembly of DirectFET.
This includes all recommendations for stencil and substrate designs.
&+/'05+105
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/+0
/#:
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/#:
#
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(
)
*
,
-
.
/
4
2
DirectFET™ Part Marking
8
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IRF6648PbF
DirectFET™ Tape & Reel Dimension (Showing component orientation).
NOTE: Controlling dimensions in mm
Std reel quantity is 4800 parts. (ordered as IRF6648TRPBF). For 1000 parts on 7"
reel, order IRF6648TR1PBF
REEL DIMENSIONS
STANDARD OPTION (QTY 4800)
TR1 OPTION (QTY 1000)
IMPERIAL
IMPERIAL
METRIC
METRIC
MIN
MAX
MIN
MAX
CODE
MIN
MIN
MAX
MAX
12.992
6.9
N.C
A
N.C
177.77 N.C
330.0
N.C
0.795
0.75
N.C
B
19.06
20.2
N.C
N.C
N.C
0.504
0.53
C
0.50
0.520
13.5
12.8
12.8
13.2
0.059
0.059
D
N.C
1.5
1.5
N.C
N.C
N.C
3.937
2.31
E
58.72
100.0
N.C
N.C
N.C
N.C
F
N.C
N.C
0.53
N.C
N.C
0.724
13.50
18.4
G
0.488
0.47
11.9
12.4
N.C
0.567
12.01
14.4
H
0.469
0.47
11.9
11.9
0.606
N.C
12.01
15.4
LOADED TAPE FEED DIRECTION
CODE
A
B
C
D
E
F
G
H
DIMENSIONS
IMPERIAL
METRIC
MIN
MIN
MAX
MAX
0.311
7.90
0.319
8.10
0.154
3.90
0.161
4.10
0.469
11.90
0.484
12.30
0.215
5.45
0.219
5.55
0.201
5.10
0.209
5.30
0.256
6.50
0.264
6.70
0.059
1.50
N.C
N.C
0.059
1.50
0.063
1.60
Data and specifications subject to change without notice.
This product has been designed and qualified for the Consumer market.
Qualification Standards can be found on IR’s Web site.
IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105
TAC Fax: (310) 252-7903
Visit us at www.irf.com for sales contact information.08/06
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9
Note: For the most current drawings please refer to the IR website at:
http://www.irf.com/package/