FDS4072N7
February 2004
FDS4072N7
40V N-Channel PowerTrench MOSFET
General Description
This N-Channel MOSFET has been designed specifically to improve the overall efficiency of DC/DC converters using either synchronous or conventional switching PWM controllers. It has been optimized for “low side” synchronous rectifier operation, providing an extremely low RDS(ON) in a small package.
Features
• 12.4 A, 40 V RDS(ON) = 11 mΩ @ VGS = 4.5 V RDS(ON) = 9 mΩ @ VGS = 10 V • High performance trench technology for extremely low RDS(ON) • High power and current handling capability • Fast switching • FLMP SO-8 package: Enhanced thermal performance in industry-standard package size
Applications
• Synchronous rectifier • DC/DC converter
5 6 7 8
Bottom-side Drain Contact
4 3 2 1
Absolute Maximum Ratings
Symbol
VDSS VGSS ID PD TJ, TSTG Drain-Source Voltage Gate-Source Voltage Drain Current – Continuous – Pulsed Power Dissipation
TA=25oC unless otherwise noted
Parameter
Ratings
40 ± 12
(Note 1a)
Units
V V A W °C
12.4 60 3.0 1.5 –55 to +150
(Note 1a) (Note 1b)
Operating and Storage Junction Temperature Range
Thermal Characteristics
RθJA RθJC Thermal Resistance, Junction-to-Ambient Thermal Resistance, Junction-to-Case
(Note 1a)
40 0.5
°C/W °C/W
Package Marking and Ordering Information
Device Marking FDS4072N7 Device FDS4072N7 Reel Size 13’’ Tape width 12mm Quantity 2500 units
2004 Fairchild Semiconductor Corporation
FDS4072N7 Rev C2 (W)
FDS4072N7
Electrical Characteristics
Symbol
EAS IAS BVDSS ∆BVDSS ∆TJ IDSS IGSSF IGSSR VGS(th) ∆VGS(th) ∆TJ RDS(on)
TA = 25°C unless otherwise noted
Parameter
Drain-Source Avalanche Energy Drain-Source Avalanche Current
Test Conditions
Single Pulse, VDD = 20V, ID=12.4 A
Min
Typ
Max Units
200 12.4 mJ A
Drain-Source Avalanche Ratings (Note 2)
Off Characteristics
Drain–Source Breakdown Voltage Breakdown Voltage Temperature Coefficient Zero Gate Voltage Drain Current Gate–Body Leakage, Forward Gate–Body Leakage, Reverse
(Note 2)
ID = 250 µA VGS = 0 V, ID = 250 µA, Referenced to 25°C VDS = 32 V, VGS = 12 V, VGS = –12 V , VGS = 0 V VDS = 0 V VDS = 0 V
40 38 1 100 –100
V mV/°C µA nA nA
On Characteristics
Gate Threshold Voltage Gate Threshold Voltage Temperature Coefficient Static Drain–Source On–Resistance Forward Transconductance
ID = 250 µA VDS = VGS, ID = 250 µA, Referenced to 25°C VGS = 4.5 V, ID = 12.4 A VGS = 10 V, ID = 13.7 A VGS = 4.5 V, ID = 12.4 A,TJ = 125°C VDS = 10 V, ID = 12.4 A
1
1.3 –4.5 9 8 14 84
3
V mV/°C
11 9 18
mΩ
gFS Ciss Coss Crss td(on) tr td(off) tf Qg Qgs Qgd IS VSD trr Qrr
S
Dynamic Characteristics
Input Capacitance Output Capacitance Reverse Transfer Capacitance
(Note 2)
VDS = 20 V, f = 1.0 MHz
V G S = 0 V,
4299 351 149
pF pF pF
Switching Characteristics
Turn–On Delay Time Turn–On Rise Time Turn–Off Delay Time Turn–Off Fall Time Total Gate Charge Gate–Source Charge Gate–Drain Charge
VDD = 20 V, VGS = 4.5 V,
ID = 1 A, RGEN = 6 Ω
20 12 52 18
36 22 83 32 46
ns ns ns ns nC nC nC
VDS = 20 V, VGS = 4.5 V
ID = 12.4 A,
33 7.8 8.1
Drain–Source Diode Characteristics and Maximum Ratings
Maximum Continuous Drain–Source Diode Forward Current Drain–Source Diode Forward VGS = 0 V, IS = 2.5 A Voltage IF = 12.4 A, Diode Reverse Recovery Time diF/dt = 100 A/µs Diode Reverse Recovery Charge 2.5
(Note 2)
A V nS nC
0.7 30 90
1.2
FDS4072N7 Rev C2 (W)
FDS4072N7
Electrical Characteristics
Notes:
TA = 25°C unless otherwise noted
1. RθJA is the sum of the junction-to-case and case-to-ambient thermal resistance where the case thermal reference is defined as the solder mounting surface of the drain pins. RθJC is guaranteed by design while RθCA is determined by the user's board design.
a)
40°C/W when mounted on a 1in2 pad of 2 oz copper
b)
85°C/W when mounted on a minimum pad of 2 oz copper
Scale 1 : 1 on letter size paper 2. Pulse Test: Pulse Width < 300µs, Duty Cycle < 2.0%
FDS4072N7 Rev C2 (W)
FDS4072N7
Typical Characteristics
80
4.5V
ID, DRAIN CURRENT (A) 60
2.5V
RDS(ON), NORMALIZED DRAIN-SOURCE ON-RESISTANCE
VGS =10V
1.6 3.0V
1.4 VGS = 2.5V 1.2
40
3.0V 3.5V 4.5V 10V
20
1
0 0 1 2 3 4 VDS, DRAIN-SOURCE VOLTAGE (V)
0.8 0 20 40 ID, DRAIN CURRENT (A) 60 80
Figure 1. On-Region Characteristics.
Figure 2. On-Resistance Variation with Drain Current and Gate Voltage.
0.025 RDS(ON), ON-RESISTANCE (OHM)
1.9 RDS(ON), NORMALIZED DRAIN-SOURCE ON-RESISTANCE
ID = 12.4A VGS = 4.5V
1.6
ID = 6.2A
0.02
1.3
TA = 125oC
0.015
1
0.01
0.7
TA = 25oC
0.005
0.4 -50 -25 0 25 50 75 100 125 150 TJ, JUNCTION TEMPERATURE (oC)
1
4
7
10
VGS, GATE TO SOURCE VOLTAGE (V)
Figure 3. On-Resistance Variation withTemperature.
80 IS, REVERSE DRAIN CURRENT (A)
Figure 4. On-Resistance Variation with Gate-to-Source Voltage.
100
VDS = 5V
ID, DRAIN CURRENT (A) 60
VGS = 0V
10 1 0.1 0.01 0.001 0.0001
TA = 125 C
o
40
25 C
o
20
-55 C
o
TA =125 C 25 C
0 1 1.5 2
o
o
-55 C
2.5 3
o
0
0.2
0.4
0.6
0.8
1
1.2
VGS, GATE TO SOURCE VOLTAGE (V)
VSD, BODY DIODE FORWARD VOLTAGE (V)
Figure 5. Transfer Characteristics.
Figure 6. Body Diode Forward Voltage Variation with Source Current and Temperature.
FDS4072N7 Rev C2 (W)
FDS4072N7
Typical Characteristics
10 VGS, GATE-SOURCE VOLTAGE (V)
6000
ID = 12.4A
8
VDS = 10V
20V
CAPACITANCE (pF)
5000
f = 1MHz VGS = 0 V CISS
30V
6
4000 3000 2000 1000
4
2
COSS CRSS
0 0 20 40 Qg, GATE CHARGE (nC) 60 80
0 0 10 20 30 40 VDS, DRAIN TO SOURCE VOLTAGE (V)
Figure 7. Gate Charge Characteristics.
1000
P(pk), PEAK TRANSIENT POWER (W)
Figure 8. Capacitance Characteristics.
50
ID, DRAIN CURRENT (A)
100
RDS(ON) LIMIT
10
1
0.1
VGS = 4.5V SINGLE PULSE o RθJA = 85 C/W TA = 25 C
o
100µs 1ms 10ms 100ms 1s 10s DC
40
SINGLE PULSE RθJA = 85°C/W TA = 25°C
30
20
10
0.01 0.01
0.1
1
10
100
0 0.01
0.1
1
10
100
1000
VDS, DRAIN-SOURCE VOLTAGE (V)
t1, TIME (sec)
Figure 9. Maximum Safe Operating Area.
Figure 10. Single Pulse Maximum Power Dissipation.
1
r(t), NORMALIZED EFFECTIVE TRANSIENT THERMAL RESISTANCE
D = 0.5
0.2
RθJA(t) = r(t) * RθJA RθJA = 85 °C/W P(pk) t1 t2 TJ - TA = P * RθJA(t) Duty Cycle, D = t1 / t2
0.1
0.1 0.05 0.02
0.01
0.01 SINGLE PULSE
0.001 0.0001
0.001
0.01
0.1
t1, TIME (sec)
1
10
100
1000
Figure 11. Transient Thermal Response Curve.
Thermal characterization performed using the conditions described in Note 1b. Transient thermal response will change depending on the circuit board design.
FDS4072N7 Rev C2 (W)
FDS4072N7
Dimensional Outline and Pad Layout
FDS4072N7 Rev C2 (W)
TRADEMARKS
The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is not intended to be an exhaustive list of all such trademarks.
ACEx™ FACT Quiet Series™ ActiveArray™ FAST Bottomless™ FASTr™ CoolFET™ FPS™ CROSSVOLT™ FRFET™ DOME™ GlobalOptoisolator™ EcoSPARK™ GTO™ E2CMOSTM HiSeC™ EnSignaTM I2C™ FACT™ ImpliedDisconnect™ Across the board. Around the world.™ The Power Franchise™ Programmable Active Droop™
DISCLAIMER
ISOPLANAR™ LittleFET™ MICROCOUPLER™ MicroFET™ MicroPak™ MICROWIRE™ MSX™ MSXPro™ OCX™ OCXPro™ OPTOLOGIC OPTOPLANAR™ PACMAN™
POP™ Power247™ PowerSaver™ PowerTrench QFET QS™ QT Optoelectronics™ Quiet Series™ RapidConfigure™ RapidConnect™ SILENT SWITCHER SMART START™ SPM™
Stealth™ SuperFET™ SuperSOT™-3 SuperSOT™-6 SuperSOT™-8 SyncFET™ TinyLogic TINYOPTO™ TruTranslation™ UHC™ UltraFET VCX™
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Preliminary
First Production
No Identification Needed
Full Production
Obsolete
Not In Production
This datasheet contains specifications on a product that has been discontinued by Fairchild semiconductor. The datasheet is printed for reference information only.
Rev. I8