|By Business Wire
|April 10, 2014 07:01 AM EDT
Freescale Semiconductor (NYSE:FSL) today announced the availability of
the industry’s first general market AEC-Q100 qualified intelligent
battery sensor to combine three measurement channels, a 16/32-bit MCU,
and a CAN protocol module in a single package.
Designed to support both conventional and emerging battery chemistries
for automotive and industrial applications, the MM9Z1J638 battery sensor
measures key battery parameters for monitoring state of health (SOH),
state of charge (SOC) and state of function (SOF) for early failure
prediction. A flexible four-cell front end architecture supports
conventional 12V lead acid batteries as well as emerging battery
applications, such as 14V stacked cell Li-Ion, high voltage junction
boxes, and 24V truck batteries.
Battery failure is one of the leading causes of vehicle breakdowns due
to electrical system errors. Rising levels of electrical load in
vehicles are placing increased strain on batteries as new,
mission-critical requirements such as engine start-stop functionality
become increasingly common. According to analyst firm Strategy
Analytics, more than 52 million vehicles worldwide will support
start-stop functionality by 2020. Start-stop requirements, together with
others such as regenerative braking and intelligent alternator control,
are driving demand for more precise sensing of the battery’s state to
provide early failure warnings.
“Our introduction of the industry’s first single-package,
automotive-qualified intelligent battery sensor with MCU and CAN
components will help automakers cope with increasing algorithm
complexity and data communication demands as cars become more connected
and intelligent,” said James Bates, senior vice president and general
manager for Freescale’s Analog & Sensors Group. “Also featuring
integrated functional safety support, the new MM9Z1J638 battery sensor
helps to support vehicle reliability even as automotive electrical
system complexities increase.”
Integrating a 16/32 bit S12Z microcontroller with 128K Flash, 8K RAM and
4K EEPROM together with a CAN protocol module, LIN interface and a
three-channel analog measurement front end, the MM9Z1J638 battery sensor
combines analog, processor and communication functions in a single
package to help lower total bill of materials and accommodate advanced
battery monitoring algorithms. The analog front end includes a
two-channel, 16-bit sigma delta (ΣΔ) analog-to-digital converter (ADC)
for simultaneous measurement of battery voltage and current, as well as
a third 16-bit ΣΔ ADC for temperature monitoring using the integrated
sensor and redundant measurement plausibility checks to support
functional safety. The new Freescale product’s input battery voltage
measurement capability supports a wide range up to 52V directly to the
device as well as much higher voltage battery configurations when used
with external voltage dividers. Its low operating duty cycle enables
operation in low-power mode for a majority of the time to help lower
average system power consumption. The MM9Z1J638 is fully AEC-Q100
automotive qualified and designed to meet stringent automotive standards
for ESD, EMC and zero defect quality levels.
Reference designs with integrated hardware and software support for the
MM9Z1J638 battery sensor enable quick and easy development of new
applications, including energy storage systems, uninterruptible power
supplies, hospital equipment and alarm systems. Low-level drivers and
BMS utility libraries are available to support custom battery modeling
and shorten development cycles. The KIT9Z1J638EVM evaluation board is
priced at $188.80(USD) and demonstrates key features of the MM9Z1_638.
Reference design RD9Z1-638-4Li is priced at $220.80(USD) and
demonstrates product capabilities for 4-cell Li-Ion battery applications.
Additional Product Details
16/32 bit MCU, 128K Flash, 8K RAM, 4K EEPROM
Integrated CAN protocol module
3x 16-bit ADC for current, voltage and temperature
Support for up to four cells and up to 52V inputs
Multiple low-power modes
Multiple wake-up triggers (current, temperature, etc.)
Configurable hardware filters
Robust LIN physical layer
7 x 7 mm 48-pin QFN package
Availability and Pricing
The MM9Z1J638 battery sensor is available now from Freescale and
authorized distributors worldwide for a suggested resale price of
$3.61(USD) in 10,000-unit quantities. Please contact Freescale Sales for
Robust and reliable analog performance
The majority of Freescale analog products meet critical industrial
market requirements, including operation across extended temperature
ranges. These products are designed and manufactured with rigorous
process controls, and qualified using industry standard methodologies
designed to yield defect rates in line with the stringent requirements
of the automotive market. The MM9Z1J638 battery sensor is included in
Freescale’s product longevity program, which provides assurance of
supply for a minimum of 10 or 15 years from the time of launch. For
terms and conditions, and to see a list of participating Freescale
products, visit www.freescale.com/productlongevity.
Freescale Semiconductor (NYSE: FSL) is a global leader in embedded
processing solutions, providing industry leading products that are
advancing the automotive, consumer, industrial and networking markets.
From microprocessors and microcontrollers to sensors, analog integrated
circuits and connectivity – our technologies are the foundation for the
innovations that make our world greener, safer, healthier and more
connected. Some of our key applications and end-markets include
automotive safety, hybrid and all-electric vehicles, next generation
wireless infrastructure, smart energy management, portable medical
devices, consumer appliances and smart mobile devices. The company is
based in Austin, Texas, and has design, research and development,
manufacturing and sales operations around the world. www.freescale.com
Freescale and the Freescale logo are trademarks of Freescale
Semiconductor, Inc., Reg. U.S. Pat. & Tm. Off. All other product or
service names are the property of their respective owners. © 2014
Freescale Semiconductor, Inc.
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