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FSB50825A bảng dữ liệu(PDF) 2 Page - Fairchild Semiconductor

tên linh kiện FSB50825A
Giải thích chi tiết về linh kiện  Motion SPM 5 Series Version 2 User?셲 Guide
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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


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