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| FDMS8670AS N-Channel PowerTrench(R) SyncFETTM August 2008 FDMS8670AS N-Channel PowerTrench SyncFET 30V, 42A, 3.0m Features Max rDS(on) = 3.0m at VGS = 10V, ID = 23A Max rDS(on) = 4.7m at VGS = 4.5V, ID = 18A Advanced Package and Silicon combination for low rDS(on) and high efficiency SyncFET Schottky Body Diode MSL1 robust package design RoHS Compliant (R) TM General Description tm The FDMS8670AS has been designed to minimize losses in power conversion application. Advancements in both silicon and package technologies have been combined to offer the lowest rDS(on) while maintaining excellent switching performance. This device has the added benefit of an efficient monolithic Schottky body diode. Applications Synchronous Rectifier for DC/DC Converters Notebook Vcore/ GPU low side switch Networking Point of Load low side switch Telecom secondary side rectification Pin 1 S S D S G 5 6 7 8 4 3 2 1 G S S S D D D D D D Power 56 (Bottom view) D MOSFET Maximum Ratings TA = 25C unless otherwise noted Symbol VDS VGS Parameter Drain to Source Voltage Gate to Source Voltage Drain Current -Continuous (Package limited) ID -Continuous (Silicon limited) -Continuous -Pulsed EAS PD TJ, TSTG Single Pulse Avalanche Energy Power Dissipation Power Dissipation TC = 25C TA = 25C (Note 1a) TC = 25C TC = 25C TA = 25C (Note 1a) Ratings 30 20 42 127 23 200 384 78 2.5 -55 to +150 mJ W C A Units V V Operating and Storage Junction Temperature Range Thermal Characteristics RJC RJA Thermal Resistance, Junction to Case Thermal Resistance, Junction to Ambient (Note 1a) 1.6 50 C/W Package Marking and Ordering Information Device Marking FDMS8670AS Device FDMS8670AS Package Power 56 Reel Size 13'' Tape Width 12mm Quantity 3000units (c)2008 Fairchild Semiconductor Corporation FDMS8670AS Rev.C1 1 www.fairchildsemi.com FDMS8670AS N-Channel PowerTrench(R) SyncFETTM Electrical Characteristics TJ = 25C unless otherwise noted Symbol Parameter Test Conditions Min Typ Max Units Off Characteristics BVDSS BVDSS TJ IDSS IGSS Drain to Source Breakdown Voltage Breakdown Voltage Temperature Coefficient Zero Gate Voltage Drain Current Gate to Source Leakage Current ID = 1mA, VGS = 0V ID = 10mA, referenced to 25C VDS = 24V, VGS = 0V VGS = 20V, VDS = 0V 30 28 500 100 V mV/C A nA On Characteristics VGS(th) VGS(th) TJ rDS(on) gFS Gate to Source Threshold Voltage Gate to Source Threshold Voltage Temperature Coefficient Static Drain to Source On Resistance Forward Transconductance VGS = VDS, ID = 1mA ID = 10mA, referenced to 25C VGS = 10V, ID = 23A VGS = 4.5V, ID = 18A VGS = 10V, ID = 23A, TJ = 125C VDD = 10V, ID = 23A 1.0 1.7 -5 2.4 3.5 3.5 143 3.0 4.7 4.7 S m 3.0 V mV/C Dynamic Characteristics Ciss Coss Crss Rg Input Capacitance Output Capacitance Reverse Transfer Capacitance Gate Resistance VDS = 15V, VGS = 0V, f = 1MHz f = 1MHz 2718 1537 343 0.9 3615 2045 515 pF pF pF Switching Characteristics td(on) tr td(off) tf Qg Qg Qgs Qgd Turn-On Delay Time Rise Time Turn-Off Delay Time Fall Time Total Gate Charge Total Gate Charge Gate to Source Charge Gate to Drain "Miller" Charge VGS = 0V to 10V VGS = 0V to 4.5V VDD = 15V, ID = 23A VDD = 15V, ID = 23A, VGS = 10V, RGEN = 6 14 5 32 4 39 20 7.2 4.0 26 10 52 10 55 28 ns ns ns ns nC nC nC nC Drain-Source Diode Characteristics VSD trr Qrr Source to Drain Diode Forward Voltage Reverse Recovery Time Reverse Recovery Charge VGS = 0V, IS =2A (Note 3) 0.4 39 48 0.7 63 77 V ns nC IF = 23A, di/dt = 300A/s NOTES: 1. RJA is determined with the device mounted on a 1in2 pad 2 oz copper pad on a 1.5 x 1.5 in. board of FR-4 material. RJC is guaranteed by design while RCA is determined by the user's board design. b. 125C/W when mounted on a minimum pad of 2 oz copper. a. 50C/W when mounted on a 1 in2 pad of 2 oz copper. 2. Starting TJ = 25C, L = 3mH, IAS = 16A, VDD = 30V, VGS =10V. 3. Pulse Test: Pulse Width < 300s, Duty cycle < 2.0%. (c)2008 Fairchild Semiconductor Corporation FDMS8670AS Rev.C1 2 www.fairchildsemi.com FDMS8670AS N-Channel PowerTrench(R) SyncFETTM Typical Characteristics TJ = 25C unless otherwise noted 200 NORMALIZED DRAIN TO SOURCE ON-RESISTANCE VGS = 10V 4.0 VGS = 4.5V VGS = 4V 3.5 VGS = 3V PULSE DURATION = 80s DUTY CYCLE = 0.5%MAX 160 ID, DRAIN CURRENT (A) 3.0 2.5 2.0 1.5 VGS = 10V VGS = 3.5V VGS = 4V VGS = 4.5V 120 VGS = 3.5V 80 VGS = 3V 40 PULSE DURATION = 80s DUTY CYCLE = 0.5%MAX 1.0 0.5 0 40 80 120 160 200 ID, DRAIN CURRENT(A) 0 0 1 2 3 4 VDS, DRAIN TO SOURCE VOLTAGE (V) Figure 1. On-Region Characteristics Figure 2. Normalized On-Resistance vs Drain Current and Gate Voltage 14 SOURCE ON-RESISTANCE (m) 1.8 NORMALIZED DRAIN TO SOURCE ON-RESISTANCE 1.6 1.4 1.2 1.0 0.8 0.6 -75 ID = 23A VGS = 10V 12 10 PULSE DURATION = 80s DUTY CYCLE = 0.5%MAX rDS(on), DRAIN TO ID = 23A 8 6 TJ = 125oC 4 2 TJ = 25oC 0 -50 -25 0 25 50 75 100 125 150 TJ, JUNCTION TEMPERATURE (oC) 2 4 6 8 10 VGS, GATE TO SOURCE VOLTAGE (V) Figure 3. Normalized On- Resistance vs Junction Temperature IS, REVERSE DRAIN CURRENT (A) Figure 4. On-Resistance vs Gate to Source Voltage 100 10 TJ = 125oC VGS = 0V 175 PULSE DURATION = 80s DUTY CYCLE = 0.5%MAX 140 ID, DRAIN CURRENT (A) VDS = 5V 105 70 TJ = 125oC 1 0.1 TJ = 25oC TJ = -55oC 35 TJ = 25oC TJ = -55oC 0.01 0 1 2 3 4 0.001 0.0 0.2 0.4 0.6 0.8 1.0 1.2 VGS, GATE TO SOURCE VOLTAGE (V) VSD, BODY DIODE FORWARD VOLTAGE (V) Figure 5. Transfer Characteristics Figure 6. Source to Drain Diode Forward Voltage vs Source Current (c)2008 Fairchild Semiconductor Corporation FDMS8670AS Rev.C1 3 www.fairchildsemi.com FDMS8670AS N-Channel PowerTrench(R) SyncFETTM Typical Characteristics TJ = 25C unless otherwise noted 10 VGS, GATE TO SOURCE VOLTAGE(V) ID = 23A 5000 8 6 4 2 f = 1MHz VGS = 0V CAPACITANCE (pF) VDD = 10V VDD = 15V VDD = 20V Ciss 1000 Coss Crss 0 0 10 20 Qg, GATE CHARGE(nC) 30 40 100 0.1 1 10 30 VDS, DRAIN TO SOURCE VOLTAGE (V) Figure 7. Gate Charge Characteristics Figure 8. Capacitance vs Drain to Source Voltage 140 120 ID, DRAIN CURRENT (A) 40 IAS, AVALANCHE CURRENT(A) 100 VGS = 10V 10 TJ = 25oC 80 60 40 20 Limited by Package VGS = 4.5V TJ = 125oC 1 0.01 RJC = 1.6 C/W o 0.1 1 10 100 600 0 25 50 75 100 o 125 150 tAV, TIME IN AVALANCHE(ms) TC, CASE TEMPERATURE ( C) Figure 9. Unclamped Inductive Switching Capability 300 P(PK), PEAK TRANSIENT POWER (W) Figure 10. Maximum Continuous Drain Current vs Case Temperature 2000 1000 100 100s ID, DRAIN CURRENT (A) VGS = 10V SINGLE PULSE RJA = 125oC/W TA = 25oC 10 THIS AREA IS LIMITED BY rDS(on) 1ms 10ms 100 1 100ms 1s 10s DC 10 0.1 SINGLE PULSE TJ = MAX RATED RJA = 125oC/W TA = 25 C o 0.01 0.01 0.1 1 10 100 1 0.5 -4 10 10 -3 10 -2 10 -1 10 0 10 1 10 2 10 3 VDS, DRAIN to SOURCE VOLTAGE (V) t, PULSE WIDTH (s) Figure 11. Forward Bias Safe Operating Area Figure 12. Single Pulse Maximum Power Dissipation (c)2008 Fairchild Semiconductor Corporation FDMS8670AS Rev.C1 4 www.fairchildsemi.com FDMS8670AS N-Channel PowerTrench(R) SyncFETTM Typical Characteristics TJ = 25C unless otherwise noted 2 1 NORMALIZED THERMAL IMPEDANCE, ZJA DUTY CYCLE-DESCENDING ORDER 0.1 D = 0.5 0.2 0.1 0.05 0.02 0.01 PDM 0.01 SINGLE PULSE t1 t2 o 0.001 0.0005 -4 10 RJA = 125 C/W NOTES: DUTY FACTOR: D = t1/t2 PEAK TJ = PDM x ZJA x RJA + TA -1 0 1 2 3 10 -3 10 -2 10 10 10 10 10 t, RECTANGULAR PULSE DURATION (s) Figure 13. Transient Thermal Response Curve (c)2008 Fairchild Semiconductor Corporation FDMS8670AS Rev.C1 5 www.fairchildsemi.com FDMS8670AS N-Channel PowerTrench(R) SyncFETTM Typical Characteristics (continued) SyncFET Schottky Body Diode Characteristics Fairchild's SyncFET process embeds a Schottky diode in parallel with PowerTrench MOSFET. This diode exhibits similar characteristics to a discrete external Schottky diode in parallel with a MOSFET. Figure 14 shows the reverse recovery characteristic of the FDMS8670AS. Schottky barrier diodes exhibit significant leakage at high temperature and high reverse voltage. This will increase the power in the device. IDSS, REVERSE LEAKAGE CURRENT (A) 0.01 TJ = 125oC 0.001 TJ = 100oC CURRENT: 0.8A/Div 0.0001 1E-5 TJ = 25oC 1E-6 0 5 10 15 20 25 30 VDS, REVERSE VOLTAGE (V) TIME: 25nS/Div Figure 14. FDMS8670AS SyncFET Body Diode Reverse Recovery Characteristics Figure 15. SyncFET Body Diode Reverse Leakage vs Drain to Source Voltage (c)2008 Fairchild Semiconductor Corporation FDMS8670AS Rev.C1 6 www.fairchildsemi.com FDMS8670AS N-Channel PowerTrench(R) SyncFETTM www.fairchildsemi.com (c)2008 Fairchild Semiconductor Corporation FDMS8670AS Rev.C1 7 FDMS8670AS N-Channel PowerTrench(R) SyncFETTM TRADEMARKS The following includes registered and unregistered trademarks and service marks, owned by Fairchild Semiconductor and/or its global subsidianries, and is not intended to be an exhaustive list of all such trademarks. Build it NowTM CorePLUSTM CorePOWERTM CROSSVOLTTM CTLTM Current Transfer LogicTM EcoSPARK(R) EfficentMaxTM EZSWITCHTM * TM (R) Fairchild(R) Fairchild Semiconductor(R) FACT Quiet SeriesTM FACT(R) FAST(R) FastvCoreTM FlashWriter(R) * FPSTM F-PFSTM FRFET(R) Global Power ResourceSM Green FPSTM Green FPSTM e-SeriesTM GTOTM IntelliMAXTM ISOPLANARTM MegaBuckTM MICROCOUPLERTM MicroFETTM MicroPakTM MillerDriveTM MotionMaxTM Motion-SPMTM OPTOLOGIC(R) OPTOPLANAR(R) (R) PDP SPMTM Power-SPMTM PowerTrench(R) Programmable Active DroopTM QFET(R) QSTM Quiet SeriesTM RapidConfigureTM Saving our world, 1mW at a timeTM SmartMaxTM SMART STARTTM SPM(R) STEALTHTM SuperFETTM SuperSOTTM-3 SuperSOTTM-6 SuperSOTTM-8 SupreMOSTM SyncFETTM (R) The Power Franchise(R) TinyBoostTM TinyBuckTM TinyLogic(R) TINYOPTOTM TinyPowerTM TinyPWMTM TinyWireTM UHC(R) Ultra FRFETTM UniFETTM VCXTM VisualMaxTM * 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 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. 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 a significant injury of the user. 2. A critical component in 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. ANTI-COUNTERFEITING POLICY Fairchild Semiconductor Corporation's Anti-Counterfeiting Policy. Farichild's Anti-Counterfeiting Policy is also stated on our external website, www.fairchildsemi.com, under Sales Support. Counterfeiting of semiconductor parts is a growing problem in the industry. All manufactures of semiconductor products are experiencing counterfeiting of their parts. Customers who inadvertently purchase counterfeit parts experience many problems such as loss of brand reputation, substandard performance, failed application, and increased cost of production and manufacturing delays. Fairchild is taking strong measures to protect ourselves and our customers from the proliferation of counterfeit parts. Farichild strongly encourages customers to purchase Farichild parts either directly from Fairchild or from Authorized Fairchild Distributors who are listed by country on our web page cited above. Products customers buy either from fairchild directly or from Authorized Fairchild Distributors are genuine parts, have full traceability, meet Fairchild's quality standards for handing and storage and provide access to Farichild's full range of up-to-date technical and product information. Fairchild and our Authorized Distributors will stand behind all warranties and will appropriately address and warranty issues that may arise. Fairchild will not provide any warranty coverage or other assistance for parts bought from Unauthorized Sources. Farichild is committed to committed to combat this global problem and encourage our customers to do their part in stopping this practice by buying direct or from authorized distributors. PRODUCT STATUS DEFINITIONS Definition of Terms Datasheet Identification Advance Information Product Status Formative / In Design Definition Datasheet contains the design specifications for product development. Specifications may change in any manner without notice. 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. Datasheet contains final specifications. Fairchild Semiconductor reserves the right to make changes at any time without notice to improve the design. Datasheet contains specifications on a product that is discontinued by Fairchild Semiconductor. The datasheet is for reference information only. Rev. I35 Preliminary First Production No Identification Needed Obsolete Full Production Not In Production (c)2008 Fairchild Semiconductor Corporation FDMS8670AS Rev.C1 www.fairchildsemi.com |
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