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DST SeriesSchottky RectifierTO-227B Introduction Ultra-Low VF Silicon Schottky Rectifier Diode in TO-277B SMT enhances Automotive DC-DC power supplies

Schottky Diode, Power SemiconductorsNew Product IntroductionApril 2017

2Confidential and Proprietary | Littelfuse, Inc. © 2017 2Confidential and Proprietary | Littelfuse, Inc. © 2017

DST series Ultra-Low VF Schottky, TO-277B

§ Types of Diode (Rectifier)§ Where Schottky rectifier is used?

– Reverse protection rectifier in DC-DC converter

– Output rectifier in DC-DC converter

§ Why this product?§ Product profile§ Cross reference

Types of Diode / Rectifier



DST series Ultra-Low VF Schottky, TO-277BSilicon Diode types

Diode

TVS diodes

Zener / Avalanche diodes

Small signal diodes

Other diodes

Ultra Fast Recovery : DUR series

Fast Recovery Rectifier

Standard Recovery : D series

Rectifier

Standard : MBR series

Ultra-Low VF : DST Series

Schottky Barrier Rectifier

Confidential and Proprietary | Littelfuse, Inc. © 2017Confidential and Proprietary | Littelfuse, Inc. © 2017 5

VR TRR VF IR Best used for

Reverse voltage Recovery time Forward voltage Leakage current

Schottky BarrierLow

≤200VNear Zero

Lowest

As low as 0.3VHigh

Output rectifierInput rectifierReverse blockingLow voltage application

Ultrafast RecoveryMid

≤1200V<100ns Mid to high

0.6~2.2V MidOutput rectifier

Mid voltage

Fast RecoveryMid

≤1800V<500ns Mid to high

0.6~1.8V MidOutput rectifierInput rectifierMid voltage

Standard RecoveryHigh

≥2000Vü>500ns Mid

0.6~1.2V LowInput rectifierReverse blockingLow to high voltage

DST series Ultra-Low VF Schottky, TO-277BRectifier Characteristics Overview

ApplicationsDST series Ultra-Low VF Schottky, TO-277B


DST series Ultra-Low VF Schottky, TO-277BDC-DC Converter, How It Works?

§ Convert input DC voltage to other DC voltage

InverterStage

Semiconductor switch chops DCto High-Freq. AC

DCInputsuch as12VDC

VoltageConversion

Magnetic converts AC voltage to target voltage

OutputRectifier

Rectifier converts High-Freq. AC back to DC

DCOutput

such as5VDC


DST series Ultra-Low VF Schottky, TO-277BDC-DC converter, where Schottky is used? § Zero TRR & Low VF = output rectifier§ Low VF = reverse blocking at input

InverterStage

Semiconductor switch chops DCto High-Freq. AC

DCInputsuch as+12VDC

VoltageConversion

Magnetic converts AC voltage to target voltage

OutputRectifier

Rectifier converts High-Freq. AC back to DC

DCOutput

such as+5VDC

Reverse Blocking Output Rectifier


DST series Ultra-Low VF Schottky, TO-277BDC-DC Converter Topology § Simplified, typical topologies

Boost converter

Flyback converter Transformer Flyback

VOUTVIN

Outputrectifier

Reverse blockingdiode

Switching device

Buck converter

VOUTVIN

Output rectifier

Reverse blockingdiode Switching

device

VOUTVIN

Output rectifier

Reverse blockingdiode

Switching device

VINReverse blockingdiode

Switching device

VOUT

Output rectifier


WDST series Ultra-Low VF Schottky, TO-277BHere DC-DC Converter & Reverse Blocking?§ Automotive applications

– DC-DC generating +3.3V,±5V, ±12V, 24V etc from 12V or 24V– Reverse blocking in any equipment connected to DC power

ADAS:Monitoring camera Sensors & ECU

Infotainment:GPS, Audio etc

Display:Information system,In-seat displays


DST series Ultra-Low VF Schottky, TO-277BWhere DC-DC Converter & Reverser Blocking?§ Automotive & other applications

– DC-DC generating +3.3V,±5V, ±12V, 24V etc from 12V or 24V– Output rectifier in DC power supply, USB charger & AC-DC adaptor etc

Lighting:LED head lightLED tail light

USB port:In-dash USB powerport

Charger:High-current USBCharger & AC-DC adaptor

Why TO-277B from Littelfuse?



DST series Ultra-Low VF Schottky, TO-277BAdvantage in Auto application

§ Most Automotive infotainment applications are up to 10A

§ D-PAK (TO-252) has been popular for 5-10A range§ Littelfuse offers up to 10A in Auto-grade TO-277B§ TO-277B foot print area 1/3 of D-PAK, 1/6 of D2-PAK§ TO-227B 1.1mm high, D-PAK 2.3mm high

TO-277B D-PAK


DST series Ultra-Low VF Schottky, TO-277BFootprint & Dimensions


DST series Ultra-Low VF Schottky, TO-277BAdvantage of Ultra-Low VF Schottky§ Trench-MOS structure to further enhance low VF characteristics§ Lower conduction loss for higher efficiency in converter and lower heat

generation in reverse blocking diode

DST10100S-A (10A, 100V) VF specification


DST series Ultra-Low VF Schottky, TO-277B What Does it Offer?

Features Benefitsu Provides ultra-low forward voltage

drop (VF)

u Provides fast switching speed

u Offers high junction temperature capability

u Requires 1/3 of foot print compared to conventional D-PAK products

u Reduced thermal and electrical conduction losses, thereby improving system efficiency

u Can be used in very high-frequency applications with minimal switching loss

u High reliability in high ambient temperatures or applications with minimal cooling available

u Enable much smaller device design, or more functions in same size


DST series Ultra-Low VF Schottky, TO-277BKey Advantages § DST Series Schottky Barrier Rectifiers (Ultra-Low VF Schottky) offer ultra-low forward

voltage drop and less heat dissipation vs. conventional diodes, thereby reducing thermal and electrical conduction losses and improving system efficiency.

§ DST Series Schottky Barrier Rectifiers (Ultra-Low VF Schottky) offer fast switching speeds and are suitable for high frequency with minimal switching loss applications.

§ High junction temperature capability improves reliability in high ambient temperatures or applications with minimal cooling available.


DST series Ultra-Low VF Schottky, TO-277BAutomotive qualified products§ Littelfuse backs product quality, performance and reliability

§ Auto-grade P/N: -A suffix– AEC-Q101 qualified– PPAP available– Manufacturing sites ISO/TS16949- certified

§ MP already started in February 2017 (DST10100S-A)

§ Littelfuse DST series Schottky rectifier makes target devices more compact, more efficient and more reliable

Product ProfileDST series Ultra-Low VF Schottky, TO-277B


DST series Ultra-Low VF Schottky, TO-277BDSTxxxxS and DSTxxxxS-A series (≤10A)

IFAV VRR P/N P/N

Average forward current

ReverseVoltage Auto-grade Commercial

5A

60V DST560S-A DST560S



8A60A DST860S-A DST860S


10A




100V DST10100S-A DST10100S


DST series Ultra-Low VF Schottky, TO-277BDSTxxxxS series (≥12A)

IFAV VRR P/N P/N

Average forward current

ReverseVoltage Auto-grade Commercial

12A 120V DST12100S

15A45V DST1545S

50V DST1550S

20A50V DST2050S

80V DST2080S


DST series Ultra-Low VF Schottky, TO-277BPart Number & Marking Systems

Cross referenceDST series Ultra-Low VF Schottky, TO-277B


DST series Ultra-Low VF Schottky, TO-277BCross reference vs. TO-277 & D-PAK (1/3)

IFAV VRR Littelfuse Comp. D Comp. O Comp. S Comp. V

5A

60VDST560S PDS560

SBR5E60P5 SS5P6-M3

DST560S-A PDS560Q FSV560V SS5P6HM3

80VDST580S

DST580S-A

100VDST5100S

PDS5100PDS5100HSDT5H100LP5

MBRD5H100T4G STPS5H100B SS5P10-M3SS5P10-E3

DST5100S-A PDS5100HQPDS5100Q NBRD5H100T4G SS5P10HM3

8A

60ADST860S SBR8U60P5

DST860S-A

100VDST8100S SS8PH10-M3

V8P10-M3

DST8100S-A SBR8M100P5 FSV8100V SS8PH10HM3V8P10HM3




10A

40VDST1040S PDS1040

MBRD1040-TSS10P4-E3SS10P4-M3

DST1040S-A PDS1040Q SS10P4HM3

45VDST1045S

PDS1045SBR1045D1SBR1045SP5

FSV1045VMBRD1045T4G STPS1045B SS10PH45-M3

VS-10WQ045FN

DST1045S-A SBR1045D1QSBR1045P5 SSPH45HM3

50VDST1050S SBRT10U50SP5 V10PN50-M3

DST1050S-A SBRT10M50SP5

100VDST10100S

SS10PH10-M3V10P10-M3V10WM100-M3

DST10100S-A FSV10100V V10P10HM3




12A 120V DST12120S SBR12U120P5 FSV10120V (AEC-Q) V12P12-M3

15A45V DST1545S

50V DST1550S SBRT15M50SP5SBRT15U50SP5 FSV1550V V15PN50-M3

20A50V DST2050S FSV2050V

80V DST2080S SBRT20M80SP5(AEC-Q)


DST Series Schottky Rectifier TO-227B Price and Availability

Part Number List Price/ea Availability(initial standard lead time)

DST10100S-A $0.290 7 – 9 weeks

DST1045S-A $0.270 7 – 9 weeks

DST560S-A $0.180 7 – 9 weeks

DST580S-A $0.190 7 – 9 weeks

DST5100S-A $0.200 7 – 9 weeks

DST860S-A $0.240 7 – 9 weeks

DST8100S-A $0.240 7 – 9 weeks

DST1040S-A $0.270 7 – 9 weeks

DST1050S-A $0.270 7 – 9 weeks




DST5100S $0.160 7 – 9 weeks

DST560S $0.140 7 – 9 weeks

DST580S $0.150 7 – 9 weeks

DST860S $0.200 7 – 9 weeks

DST8100S $0.200 7 – 9 weeks

DST1050S $0.220 7 – 9 weeks

DST12100S $0.250 7 – 9 weeks

DST1545S $0.280 7 – 9 weeks

DST1550S $0.290 7 – 9 weeks




DST2050S $0.300 7 – 9 weeksDST1040S $0.225 7 – 9 weeksDST1045S $0.225 7 – 9 weeksDST2080S $0.320 7 – 9 weeksDST10100S $0.255 7 – 9 weeks


DST series Ultra-Low VF Schottky, TO-277BKey words§ Schottky Barrier Rectifiers§ TO-277B package§ Schottky diode § DC-DC power supplies§ DC-DC converters§ High-frequency switch-mode power supplies (SMPSs)§ Automotive application§ ADAS camera§ Sensors§ Informant devices§ GPS, audio and LCD displays§ LED head light /tail light power source§ AECQ-101 qualified§ Reverse blocking diode§ Output rectifier


For Further Information

§ Technical Support: (800) 999-9445

§ Product Manager – Zhiwei Wang ([email protected] )– Contact for availability and samples

§ Product Engineer – MingChao Zhu§ ([email protected])

– Contact for general technical issues, qualification data, MSDS, UL related issues & technical support

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