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AN-9080 Datasheet(PDF) 2 Page - Fairchild Semiconductor |
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AN-9080 Datasheet(HTML) 2 Page - Fairchild Semiconductor |
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2 / 28 page  AN-9080 APPLICATION NOTE © 2013 Fairchild Semiconductor Corporation www.fairchildsemi.com Rev. 1.0.1 • 4/16/14 2 1. Introduction 1.1. About this Application Note This application note is about Motion SPM® 5 Series Version 2 products. It should be used in conjunction with the datasheet, reference designs, and related application notes listed in Related Resources. This note focuses on the difference between Version 2 and the previous versions of SPM parts, with emphasis on new IC functions 1.2. Design Concept The key design objective of the SPM 5 series is to provide a compact and reliable inverter solution for small power motor drive applications. Ongoing efforts have improved the performance, quality, and power rating of SPM 5 series products and the Version 2 products are the latest results of these enhancements. The new features include temperature- sensing capability, built-in bootstrap diodes, and upgraded ruggedness. Two higher power rating devices based on super-junction MOSFET technology are added to cover higher power rating applications without significantly increasing cost. The MOSFETs in SPM 5 series are specially processed to reduce the amount of body-diode reverse recovery charge to minimize the switching loss and enable fast switching operations. Softness of the reverse-recovery characteristics is managed through advanced MOSFET design with optimized gate resistor selections to contain Electromagnetic Interference (EMI) noise within a reasonable range. SPM 5 series has six fast-recovery MOSFETs (FRFET ® ) and three high-voltage half-bridge gate drive ICs. These MOSFETs and HVICs are not available as discrete parts. An FRFET-based power module has much better ruggedness and a larger safe operation area (SOA) than IGBT-based module or Silicon-On-Insulator modules. The FRFET-based power module has a big advantage in light-load efficiency over IGBT-based because the voltage drop across the transistor decreases linearly as current decrease, whereas IGBT Vce saturation voltage stays at the threshold level. Some applications require continuous operation at light load except short transients and improving the efficiency in the light-load condition is the key to saving energy. Refrigerators, water circulation pumps, and some fans are good examples. The temperature-sensing function of version 2 products is implemented in the HVIC to enhance system reliability. An analog voltage proportional to the temperature of the HVIC is provided for monitoring the module temperature and necessary protections against over-temperature situations. Three internal bootstrap diodes with resistive characteristics reduce the number of external components and make the PCB design more compact, beneficial when designing an inverter built inside the motor. 1.3. Features The detailed features and integrated functions are: Variety of products with different voltage and power ratings: 250/500/600 V 3-phase FRFET inverter ,including HVICs Three divided negative DC-link terminals for leg current sensing HVIC for gate driving of FRFET, under-voltage protection, and thermal sensing functions 3.3/5 V Schmitt trigger input with active HIGH logic Built-in bootstrap diodes Single-grounded power supply and optocoupler-less interface due to built-in HVIC Minimized standby current of HVIC for energy regulation Packages; DIP, SMD, Double-DIP, Zigzag-DIP Isolation voltage rating of 1500 V RMS for 1 minute Moisture Sensitive Level 3 (MSL3) for SMD package |
Similar Part No. - AN-9080 |
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Similar Description - AN-9080 |
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