MUR840

MUR840, MUR860, RURP840, RURP860 D ata Sheet January 2002 8A, 400V - 600V Ultrafast Diodes The MUR840, MUR860, RURP840 and RURP860 are low forward voltage drop ultrafast recovery rectifiers (trr < 60ns). They use a glass-passivated ion-implanted, epitaxial construction. These devices are intended for use as output rectifiers and flywheel diodes in a variety of high-frequency pulse-width modulated switching regulators. Their low stored charge and attendant fast reverse-recovery behavior minimize electrical noise generation and in many circuits markedly reduce the turn-on dissipation of the associated power switching transistors. Formerly developmental type TA09616. Features • Ultrafast with Soft Recovery . . . . . . . . . . . . . . . . . . . DUT VR(AVL)) L CURRENT SENSE Q1 VDD DUT R + VDD IV FIGURE 9. trr WAVEFORMS AND DEFINITIONS VAVL IL IL t0 t1 t2 t FIGURE 10. AVALANCHE ENERGY TEST CIRCUIT FIGURE 11. AVALANCHE CURRENT AND VOLTAGE WAVEFORMS ©2002 Fairchild Semiconductor Corporation MUR840, MUR860, RURP840, RURP86 Rev. B 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™ Bottomless™ CoolFET™ CROSSVOLT ™ DenseTrench™ DOME™ EcoSPARK™ E2CMOSTM EnSignaTM FACT™ FACT Quiet Series™ DISCLAIMER FAST ® FASTr™ FRFET™ GlobalOptoisolator™ GTO™ HiSeC™ ISOPLANAR™ LittleFET™ MicroFET™ MicroPak™ MICROWIRE™ OPTOLOGIC™ OPTOPLANAR™ PACMAN™ POP™ Power247™ PowerTrench ® QFET™ QS™ QT Optoelectronics™ Quiet Series™ SILENT SWITCHER ® SMART START™ STAR*POWER™ Stealth™ SuperSOT™-3 SuperSOT™-6 SuperSOT™-8 SyncFET™ TinyLogic™ TruTranslation™ UHC™ UltraFET ® VCX™ STAR*POWER is used under license 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: 1. Life support devices or systems are devices or 2. A critical component is any component of a life systems which, (a) are intended for surgical implant into support device or system whose failure to perform can the body, or (b) support or sustain life, or (c) whose be reasonably expected to cause the failure of the life failure to perform when properly used in accordance support device or system, or to affect its safety or 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. H4