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Taglia: 435 Kb Ora pubblicata: 2018-12-15Allegro offe a wide range of digital position seo coisting of Hall-effect switches, latches and other special purpose devices. Over time and with ongoing innovation, the basic architecture of these Hall-effect seo has evolved from its original form (continuous-time) into today’s modern, chopper-stabilized devices. This application guide will outline the differences between the two seor types and provide system designe with the tools needed in order to select the appropriate seor for their system. A cross-reference table is also provided,which summarizes the suggested replacement device to be used when upgrading from a continuous-time device to a chopper-stabilized device
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Taglia: 120 Kb Ora pubblicata: 2018-12-15Power dissipation and temperature rise is an important issue that needs to be coidered when designing high reliability microelectronics. The heat created by power dissipation can cause specificatio to drift out of tolerance and decrease the life of the part if not properly managed. The majority of the heat is typically removed through the base plate or the bottom of the device into a heat sink or PC board. Component junction temperatures are calculated as a temperature rise from the case temperature. Each component is analyzed to verify that it does not exceed the maximum junction temperature under the wot case operating conditio. The operating conditio of a specific application will affect the thermal characteristics of the part and will require thermal analysis. The operating conditio that will impact thermal design include but are not limited to; operating case temperature, input voltage range, output voltage, load current range, signal pin input voltage range, etc.
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Taglia: 499 Kb Ora pubblicata: 2018-12-14The design, development and delivery of magnetic components for production is a complex process; it involves various organizatio, skills and people. The design development process begi once performance requirements are specified. Upon approval of a design proposal, the procurement of materials for a prototype build is initiated. During this stage of development, specificatio are not final, technical optio remain open and provisio for a cost-effective production can be made. Specificatio must be reviewed and design trade-offs evaluated to eure that the technical requirements are economically attainable. This paper discusses electrical specification paramete with coideration given to performance and tolerance in relation cost.
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Taglia: 2692 Kb Ora pubblicata: 2018-12-14• Blocks current through X capacitor discharge resisto when AC voltage is connected • Automatically discharges X capacito through discharge resisto when AC is disconnected • Simplifies EMI filter design – larger X capacitor allows smaller inductive components with no change in coumption • Only two terminals – meets safety standards for use before or after system input fuse • >4 mm creepage on package and PCB • Self supplied – no external bias required • High common mode surge immunity – no external ground connection • High differential surge withstand – 1000 V internal MOSFETs • Single part for all applicatio and power ranges • CB and NEMKO certification
