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FFA40UP35S
March 2008
Ultrafast Rectifier
FFA40UP35S
Features
* High Speed Switching, trr < 55ns @ IF = 40A * High Reverse Voltage and High Reliability * Avalanche Energy Rated * Low Forward Voltage, VF < 1.6V * RoHS compliant
tm
40A, 350V Ultrafast Rectifier
The FFA40UP35S is utrafast rectifier with low forward voltage drop. It is silicon nitride passivated ion-implanted epitaxial planar construction. This device is intended for use as freewheeling/clamping rectifiers in a variety of switching power supplies and other power swithching applications. Its low stored charge and hyperfast soft recovery minimize ringing and electrical noise in many power switching circuits reducing power loss in the switching transistors.
Applications
* General Purpose * Switching Mode Power Supply * Free-wheeling diode for motor application * Power switching circuits
1 2 TO3P 1. Anode 2. Cathode 3. Anode 3 1. Anode 2. Cathode 3. Anode
Absolute Maximum Ratings TC = 25oC unless otherwise noted
Symbol VRRM VRWM VR IF(AV) IFSM TJ, TSTG Parameter Peak Repetitive Reverse Voltage Working Peak Reverse Voltage DC Blocking Voltage Average Rectified Forward Current Non-repetitive Peak Surge Current 60Hz Single Half-Sine Wave Operating and Storage Temperature Range @ TC = 111oC Ratings 350 350 350 40 400 -65 to +150 Units V V V A A
o
C
Thermal Characteristics
Symbol RJC Parameter Maximum Thermal Resistance, Junction to Case Ratings 0.8 Units
o
C/W
Package Marking and Ordering Information
Device Marking
F40UP35S
Device
FFA40UP35STU
Package
TO3P
Reel Size
-
Tape Width
-
Quantity
30
(c)2008 Fairchild Semiconductor Corporation FFA40UP35S Rev. A
1
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FFA40UP35S
Electrical Characteristics TC = 25oC unless otherwise noted
Symbol VFM1 IRM1 trr ta tb Qrr WAVL IF = 40A IF = 40A VR = 350V VR = 350V IF = 1A, di/dt = 100A/s, VR = 30V IF = 40A, di/dt = 200A/s, VR = 230V IF = 40A, di/dt = 200A/s, VR = 230V Avalanche Energy ( L = 40mH) Parameter TC = 25oC TC = 125oC TC = 25oC TC = 125oC TC = 25oC TC = 25oC Min. 20 Typ. 26 28 17 11 36 Max. 1.6 1.5 100 500 53 55 Units V A ns ns ns nC mJ
Notes: 1: Pulse: Test Pulse width = 300s, Duty Cycle = 2%
Test Circuit and Waveforms
FFA40UP35S Rev. A
2
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FFA40UP35S
Typical Performance Characteristics
Figure 1. Typical Forward Voltage Drop vs. Forward Current
100
Figure 2. Typical Reverse Current vs. Reverse Voltage
100
10
TC = 125 C TC = 75 C TC = 25 C
o o o
10
Reverse Current , IR [A]
TC = 125 C
o
Forward Current, IF [A]
1
TC = 75 C
o
0.1
1
0.01
TC = 25 C
o
0.2 0.0
1E-3
0.5 1.0 1.5 Forward Voltage, VF [V]
2.0
10
100 200 Reverse Voltage, VR [V]
300
350
Figure 3.Typical Junction Capacitance
560 480 Capacitances , Cj [pF] 400 320 240 160 80 0.1
Figure 4. Typical Reverse Recovery Time vs. di/dt
50
Reverse Recovery Time, trr [s]
IF = 40A
Typical Capacitance at 0V = 530 pF
TC = 125 C
o
40
TC = 75 C
o
30
TC = 25 C
o
1 10 Reverse Voltage, VR [V]
100
20 100
200
300 di/dt [A/s]
400
500
Figure 5. Typical Reverse Recovery Current vs. di/dt
10
Reverse Recovery Current, Irr [A]
Figure 6. Forward Current Derating Curve
100
Average Forward Current, IF(AV) [A]
8
o
TC = 125 C TC = 75 C
o
75
6
50
4
TC = 25 C
o
25
2
IF = 40A
100
200
300
di/dt [A/s]
400
500
0 25
50
75 100 125 o Case temperature, TC [ C]
150
FFA40UP35S Rev. A
3
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FFA40UP35S
Mechanical Dimensions
TO3P
Dimensions in Millimeters
FFA40UP35S Rev. A
4
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FFA40UP35S
TRADEMARKS
The following are registered and unregistered trademarks and service marks Fairchild Semiconductor owns or is authorized to use and is not intended to be an exhaustive list of all such trademarks. ACEx(R) Build it NowTM CorePLUSTM CROSSVOLTTM CTLTM Current Transfer LogicTM EcoSPARK(R) EZSWITCHTM *
TM
(R)
Fairchild(R) Fairchild Semiconductor(R) FACT Quiet SeriesTM FACT(R) FAST(R) FastvCoreTM FlashWriter(R) *
tm
FPSTM FRFET(R) Global Power ResourceSM Green FPSTM Green FPSTM e-SeriesTM GTOTM i-LoTM IntelliMAXTM ISOPLANARTM MegaBuckTM MICROCOUPLERTM MicroFETTM MicroPakTM MillerDriveTM Motion-SPMTM OPTOLOGIC(R) OPTOPLANAR(R)
(R)
tm
PDP-SPMTM Power220(R) Power247(R) POWEREDGE(R) Power-SPMTM PowerTrench(R) Programmable Active DroopTM QFET(R) QSTM QT OptoelectronicsTM Quiet SeriesTM RapidConfigureTM SMART STARTTM SPM(R) STEALTHTM SuperFETTM SuperSOTTM-3 SuperSOTTM-6 SuperSOTTM-8
SyncFETTM (R) The Power Franchise(R)
tm
TinyBoostTM TinyBuckTM TinyLogic(R) TINYOPTOTM TinyPowerTM TinyPWMTM TinyWireTM SerDesTM UHC(R) Ultra FRFETTM UniFETTM VCXTM
* EZSWITCHTM and FlashWriter(R) are trademarks of System General Corporation, used under license by Fairchild Semiconductor. DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT 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. THESE SPECIFICATIONS DO NOT EXPAND THE TERMS OF FAIRCHILD'S WORLDWIDE TERMS AND CONDITIONS, SPECIFICALLY THE WARRANTY THEREIN, WHICH COVERS THESE PRODUCTS.
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: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user. 2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.
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; supplementary data will be published at a later date. Fairchild Semiconductor reserves the right to make changes at any time without notice to improve design. This datasheet contains final specifications. Fairchild Semiconductor reserves the right to make changes at any time without notice to improve design. This datasheet contains specifications on a product that has been discontinued by Fairchild semiconductor. The datasheet is printed for reference information only.
Rev. I32
Preliminary
First Production
No Identification Needed
Full Production
Obsolete
Not In Production
FFA40UP35S Rev. A
5
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