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FDS7088N7
February 2004
FDS7088N7
30V 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
* 23 A, 30 V RDS(ON) = 3 m @ VGS = 10 V RDS(ON) = 4 m @ VGS = 4.5 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
TA=25oC unless otherwise noted
Parameter
Ratings
30 20
(Note 1a)
Units
V A W C
23 60 3.0 1.5 -55 to +150
Power Dissipation for Single Operation
(Note 1a) (Note 1b)
Operating and Storage Junction Temperature Range
Thermal Characteristics
RJA RJC Thermal Resistance, Junction-to-Ambient Thermal Resistance, Junction-to-Case
(Note 1a) (Note 1)
40 0.5
C/W
Package Marking and Ordering Information
Device Marking FDS7088N7 Device FDS7088N7 Reel Size 13'' Tape width 12mm Quantity 2500 units
2004 Fairchild Semiconductor Corporation
FDS7088N7 Rev D1 (W)
FDS7088N7
Electrical Characteristics
Symbol
BVDSS BVDSS TJ IDSS IGSS VGS(th) VGS(th) TJ RDS(on)
TA = 25C unless otherwise noted
Parameter
Drain-Source Breakdown Voltage Breakdown Voltage Temperature Coefficient Zero Gate Voltage Drain Current Gate-Body Leakage
(Note 2)
Test Conditions
ID = 250 A VGS = 0 V, ID = 250 A, Referenced to 25C VDS = 24 V, VGS = 20 V, VGS = 0 V VDS = 0 V
Min
30
Typ
Max Units
V
Off Characteristics
25 10 100 1 1.9 -6 2.4 3.3 3.5 112 3845 930 368 VGS = 15 mV,
(Note 2)
mV/C A nA V mV/C 3 4 5.5 m
On Characteristics
Gate Threshold Voltage Gate Threshold Voltage Temperature Coefficient Static Drain-Source On-Resistance Forward Transconductance Input Capacitance Output Capacitance Reverse Transfer Capacitance Gate Resistance 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
ID = 250 A VDS = VGS, ID = 250 A, Referenced to 25C VGS = 10 V, ID = 23 A ID = 21 A VGS = 4.5 V, VGS = 10 V, ID = 23 A, TJ = 125C VDS = 10 V, ID = 23 A VDS = 15 V, f = 1.0 MHz V GS = 0 V,
3
gFS Ciss Coss Crss RG td(on) tr td(off) tf Qg Qgs Qgd IS VSD trr Qrr
S pF pF pF 27 23 99 58 48 ns ns ns ns nC nC nC 2.5 A V nS nC
Dynamic Characteristics
f = 1.0 MHz ID = 1 A, RGEN = 6
1.4 15 13 62 36
Switching Characteristics
VDD = 15 V, VGS = 10 V,
VDS = 15 V, VGS = 5.0 V
ID = 23 A,
37 10 14
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 = 23 A, Diode Reverse Recovery Time diF/dt = 100 A/s Diode Reverse Recovery Charge
(Note 2)
0.7 39 33
1.2
Notes: 1. RJA 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. RJC is guaranteed by design while RCA is determined by the user's board design.
a)
40C/W when 2 mounted on a 1in pad of 2 oz copper
b)
85C/W when mounted on a minimum pad of 2 oz copper
Scale 1 : 1 on letter size paper 2. Pulse Test: Pulse Width < 300s, Duty Cycle < 2.0%
FDS7088N7 Rev D1 (W)
FDS7088N7
Typical Characteristics
80
VGS = 10V 4.5V
2.2
4.0V
RDS(ON), NORMALIZED DRAIN-SOURCE ON-RESISTANCE
3.5V
VGS = 3.5V
2 1.8 1.6 1.4 1.2 1 0.8 0 20 40 ID, DRAIN CURRENT (A) 60 80
ID, DRAIN CURRENT (A)
60
40
4.0V 4.5V 5.0V 6.0V 10V
20
3.0V
0 0 0.5 1 1.5 VDS, DRAIN-SOURCE VOLTAGE (V)
Figure 1. On-Region Characteristics.
Figure 2. On-Resistance Variation with Drain Current and Gate Voltage.
0.01 RDS(ON), ON-RESISTANCE (OHM)
1.6 RDS(ON), NORMALIZED DRAIN-SOURCE ON-RESISTANCE ID = 23A VGS = 10V 1.4
ID = 11.5A 0.008
1.2
0.006
TA = 125oC
1
0.004 TA = 25oC 0.002
0.8
0.6 -50 -25 0 25 50 75 100 125 150 TJ, JUNCTION TEMPERATURE (oC)
0 2 4 6 8 10 VGS, GATE TO SOURCE VOLTAGE (V)
Figure 3. On-Resistance Variation with Temperature.
80 VDS = 5V ID, DRAIN CURRENT (A) 60
Figure 4. On-Resistance Variation with Gate-to-Source Voltage.
100
VGS = 0V
IS, REVERSE DRAIN CURRENT (A)
10
TA = 125oC
1 0.1 0.01 0.001 0.0001
25oC -55oC
40
TA =125oC 25oC
20 -55oC 0 2 2.5 3 3.5 4 VGS, GATE TO SOURCE VOLTAGE (V)
0
0.2
0.4
0.6
0.8
1
1.2
VSD, BODY DIODE FORWARD VOLTAGE (V)
Figure 5. Transfer Characteristics.
Figure 6. Body Diode Forward Voltage Variation with Source Current and Temperature.
FDS7088N7 Rev D1 (W)
FDS7088N7
Typical Characteristics
10 VGS, GATE-SOURCE VOLTAGE (V) ID = 23A 8 20V 6 VDS = 10V 15V
5000
f = 1MHz VGS = 0 V CISS
4000 CAPACITANCE (pF)
3000
4
2000 COSS 1000 CRSS
2
0 0 20 40 Qg, GATE CHARGE (nC) 60 80
0 0 5 10 15 20 25 30 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 1ms 10ms 100ms 1s 10s DC
100s
40
SINGLE PULSE RJA = 85C/W TA = 25C
10
30
1
0.1
VGS = 10V SINGLE PULSE RJA = 85oC/W TA = 25oC
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.
1.00
r(t), NORMALIZED EFFECTIVE TRANSIENT THERMAL RESISTANCE D = 0.5 0.2
0.10
0.1 0.05 0.02
RJA(t) = r(t) * RJA RJA = 85 C/W P(pk) t1 t2 TJ - TA = P * RJA(t) Duty Cycle, D = t1 / t2
0.01
0.01
SINGLE PULSE
0.00 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.
FDS7088N7 Rev D1 (W)
FDS7088N7
Dimensional Outline and Pad Layout
FDS7088N7 Rev D1 (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.
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DISCLAIMER
ISOPLANARTM LittleFETTM MICROCOUPLERTM MicroFETTM MicroPakTM MICROWIRETM MSXTM MSXProTM OCXTM OCXProTM OPTOLOGIC OPTOPLANARTM PACMANTM
POPTM Power247TM PowerSaverTM PowerTrench QFET QSTM QT OptoelectronicsTM Quiet SeriesTM RapidConfigureTM RapidConnectTM SILENT SWITCHER SMART STARTTM SPMTM
StealthTM SuperFETTM SuperSOTTM-3 SuperSOTTM-6 SuperSOTTM-8 SyncFETTM TinyLogic TINYOPTOTM TruTranslationTM UHCTM UltraFET VCXTM
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. LIFE SUPPORT POLICY FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 2. A critical component is any component of a life 1. Life support devices or systems are devices or support device or system whose failure to perform can systems which, (a) are intended for surgical implant into be reasonably expected to cause the failure of the life the body, or (b) support or sustain life, or (c) whose support device or system, or to affect its safety or failure to perform when properly used in accordance with instructions for use provided in the labeling, can be effectiveness. reasonably expected to result in significant injury to the user. PRODUCT STATUS DEFINITIONS Definition of Terms Datasheet Identification Advance Information Product Status Formative or In Design Definition This datasheet contains the design specifications for product development. Specifications may change in any manner without notice. This datasheet contains preliminary data, and supplementary data will be published at a later date. Fairchild Semiconductor reserves the right to make changes at any time without notice in order to improve design. This datasheet contains final specifications. Fairchild Semiconductor reserves the right to make changes at any time without notice in order to improve design.
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

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