Si828x ISOdriver Family Provides Advanced Monitoring Features for
IGBT Switches in High-Voltage Industrial and Green Energy Applications
AUSTIN, Texas--(BUSINESS WIRE)--
Silicon
Labs (NASDAQ: SLAB) has expanded its ISOdriver portfolio with a
family of isolated gate drivers designed to protect sensitive
insulated-gate bipolar transistor (IGBT) switches in power inverter and
motor drive applications. The new Si828x ISOdriver family provides
industrial-grade isolation (5 kVrms withstand), best-in-class feature
integration including an optional dc-dc converter, the industry's
fastest desaturation detection, superior timing characteristics, and
exceptional noise and transient immunity.
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Silicon Labs Si828x ISOdriver family offers ultimate protection for inverters and motor drives. (Photo: Business Wire)
Get all the details about Silicon Labs' Si828x ISOdriver family
including product pricing and availability, development tools and data
sheets at www.silabs.com/isodriver.
The Si828x family provides an ideal solution for industrial motor
drives, solar inverters, high-voltage power converters, uninterruptable
power supplies, and heating, ventilation and air conditioning (HVAC)
compressor control. Many of these systems are expected to last more than
25 years while operating in harsh environments. Isolators can be first
points of failure and lifetime-limiting devices in these systems.
Traditional optocoupler-based isolators have significant limitations in
temperature range, noise immunity and product lifetime. Based on Silicon
Labs' proven CMOS isolation technology, Si828x gate drivers can operate
over a full industrial temperature range, support product lifetimes of
up to 100 years, and meet stringent UL, VDE, CQC and CSA standards.
The Si828x family combines robust isolation, advanced gate driver
technology and fast over-current monitoring in a single, cost-effective
device designed to protect costly IGBT switches. High-power inverter and
power converter systems typically use IGBTs for the switching element,
and over-current conditions can destroy IGBTs, compromise
system-critical functions, jeopardize product safety and diminish
reliability. Efficient switching of IGBTs requires the use of isolated
gate drivers like the Si828x devices with specialized monitoring and
control features.
The defining Si828x feature is a 4 amp gate driver coupled with
desaturation detection to monitor the IGBT for over-current. In that
event, the Si828x driver initiates a controlled shutdown of the switch
while updating the controller with the fault status, protecting the IGBT
and the system. Additional integrated features include split outputs, a
Miller clamp to prevent parasitic gate turn-on, and driver power state
and fault feedback to the controller.
The Si828x family includes driver versions with an integrated isolated
dc-dc converter, which helps developers simplify the layout, reduce
component count and board size, and ease the complexity of creating and
managing multiple power domains. A single power bus can be routed across
the system, eliminating complex spacing concerns. Localizing power
supplies to each driver reduces inductance, minimizes noise and removes
transients.
"Today's power inverters and converters for industrial and green energy
designs require state-of-the-art signal isolation technology with
superior timing characteristics, lower emissions and higher
reliability," said Ross Sabolcik, Vice President of power products at
Silicon Labs. "Silicon Labs' new Si828x ISOdriver family provides the
ultimate gate driver solution for these applications by helping
developers achieve higher system efficiency and noise immunity, minimize
design complexity, and enhance system safety and product lifetimes."
Si828x ISOdriver Family Highlights
-
Industrial-grade isolation: high transient immunity, high reliability,
5 kVrms withstand
-
Most comprehensive feature integration in the isolated gate driver
market
-
Optional integrated dc-dc converter simplifying board layout and
driver supply design
-
Industry's fastest desaturation detection: up to 10x faster than
competitive alternatives
-
Fastest, most accurate timing specs with low propagation delay ( < 55
ns): up to 10x better than optocoupler solutions and up to 2x better
than competing CMOS solutions
-
Long lifetimes under high-voltage conditions (100 years at 1000 V)
Silicon Labs offers three evaluation kits to help developers evaluate
Si828x ISOdriver performance and key features:
-
Si8285_86-KIT demonstrates the basic Si828x driver functionality
-
Si8281-KIT demonstrates the driver with an integrated dc-dc converter
-
Si8284-KIT demonstrates the driver with full-featured dc-dc converter
capable of using higher supply voltages
Pricing and Availability
Samples and production quantities of the Si828x isolated gate drivers
are available now in a variety of compact wide-body SOIC packages.
Pricing in 10,000-unit quantities begins at $1.59 for base driver
products and $2.87 for devices with an integrated dc-dc converter. (All
prices are in USD.) The Si8285_86-KIT, Si8281-KIT and Si8284-KIT
evaluation kits are priced at $19.00 each (USD MSRP). To purchase
product samples and development tools, please visit www.silabs.com/isodriver.
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Silicon Labs
Silicon Labs (NASDAQ: SLAB) is a leading provider of silicon, software
and solutions for the Internet of Things, Internet infrastructure,
industrial automation, consumer and automotive markets. We solve the
electronics industry's toughest problems, providing customers with
significant advantages in performance, energy savings, connectivity and
design simplicity. Backed by our world-class engineering teams with
unsurpassed software and mixed-signal design expertise, Silicon Labs
empowers developers with the tools and technologies they need to advance
quickly and easily from initial idea to final product. www.silabs.com
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This press release may contain forward-looking statements based on
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involve risks and uncertainties. A number of important factors could
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Silicon Labs
Dale Weisman, +1-512-532-5871
dale.weisman@silabs.com
Source: Silicon Labs
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