ANAHEIM, Calif., March 18, 2019 /PRNewswire/ -- (APEC)
– Silicon Labs (NASDAQ: SLAB) has introduced a family
of isolated analog amplifiers, voltage sensors and delta-sigma
modulator (DSM) devices designed to provide accurate current and
voltage measurement with very low drift across temperature. Based
on Silicon Labs' robust, third-generation isolation technology, the
new Si89xx family provides flexible voltage, current, output and
package options to help developers reduce BOM cost and shrink board
space for a wide range of industrial and green-energy applications
including electric vehicle (EV) battery management and charging
systems, dc-dc converters, and motor, solar and wind turbine
inverters.
Precise current and voltage measurement is essential for
accurate operation of power control systems. To maximize efficiency
and respond quickly to faults or changes in load, system
controllers require current and voltage information from
high-voltage rails. Silicon Labs' third-generation isolation
technology keeps controllers safe across wide temperature
variations with 1414 V working voltage and 13 kV bipolar surge,
exceeding stringent industry requirements.
Silicon Labs now offers the industry's broadest portfolio of
current and voltage sensors. The Si89xx family includes four
product categories:
- Si892x isolated analog amplifiers optimized for shunt-current
sensing
- Si8931/2 isolated analog amplifiers optimized for
general-purpose voltage sensing
- Si8935/6/7 isolated DSM devices optimized for voltage
sensing—an industry first
- Si8941/6/7 isolated DSM devices optimized for shunt-current
sensing
"Our first and second generation mixed-signal isolation
technologies have driven the strong market success of our digital
isolation products over the past decade, and our third-generation
technology used in the new Si89xx devices raises the bar even
higher," said Brian Mirkin, Vice
President and General Manager of Silicon Labs' power products. "Our
isolation products continue to replace traditional optocouplers and
outperform competing digital isolators, enabling higher surge
performance, reliability, integration and best-in-class safety for
system designs requiring protection from high voltages."
Automotive battery and motor/photovoltaic inverter systems
require reliable current monitoring with robust noise immunity. The
Si89xx devices provide up to 3x higher common-mode transient
immunity (CMTI) than competing products. The devices' 75 kV/µs
immunity to fast transients ensures reliable and accurate current
readings in demanding industrial applications. The Si89xx family
also supports a fail-safe indication to the host controller if the
high-side supply voltage is not detected.
The Si89xx devices provide typical offset error as low as ±40 µV
and ±0.1% gain error, enabling precise measurements. Typical offset
drift as low as ±0.15 µV/˚C and typical gain drift as low as –6
ppm/˚C ensure exceptional accuracy across temperature. The devices
offer the industry's highest typical signal-to-noise ratio (SNR)—up
to 90 dB. A unique low-power mode automatically reduces current
draw on one side of the isolation barrier to approximately 1 mA
whenever voltage is removed from the other side, enabling a
controller to manage power with a simple field-effect transistor
(FET).
The next-generation Si89xx devices enhance design flexibility
with the following options:
- Current or voltage-optimized devices with single-ended,
differential or DSM output
- ±62.5 mV, ±250 mV or 2.5 V input ranges
- A stretched wide-body SOIC-8 package to support 5 kVrms
isolation and 9 mm creepage/clearance and a compact narrow-body
SOIC-8 to support 2.5 kVrms isolation
Pricing and Availability
Advanced samples of
Si892x/3x/4x devices in wide-body SOIC-8 packages are available
now, and advanced samples of the devices in narrow-body SOIC-8
packages are planned to be available in Q2. Production quantities
of all Si89xx devices are planned for Q3. Silicon Labs offers a
wide range of evaluation kits to accelerate development. Contact
your local Silicon Labs sales representative or authorized
distributor for IC and evaluation kit pricing. For more information
and to request device samples, visit silabs.com/nextgen-si89xx.
Silicon Labs
Silicon Labs (NASDAQ: SLAB) is a leading
provider of silicon, software and solutions for a smarter, more
connected world. Our award-winning technologies are shaping the
future of the Internet of Things, Internet infrastructure,
industrial automation, consumer and automotive markets. Our
world-class engineering team creates products focused on
performance, energy savings, connectivity and simplicity.
silabs.com
Connect with Silicon Labs
Silicon Labs PR Contact:
Dale Weisman +1-512-532-5871,
dale.weisman@silabs.com
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Cautionary Language
This press release may contain
forward-looking statements based on Silicon Labs' current
expectations. These forward-looking statements involve risks and
uncertainties. A number of important factors could cause actual
results to differ materially from those in the forward-looking
statements. For a discussion of factors that could impact Silicon
Labs' financial results and cause actual results to differ
materially from those in the forward-looking statements, please
refer to Silicon Labs' filings with the SEC. Silicon Labs disclaims
any intention or obligation to update or revise any forward-looking
statements, whether as a result of new information, future events
or otherwise.
Note to editors: Silicon Labs, Silicon Laboratories, the "S"
symbol, the Silicon Laboratories logo and the Silicon Labs logo are
trademarks of Silicon Laboratories Inc. All other product names
noted herein may be trademarks of their respective holders.
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SOURCE Silicon Labs