TOKYO, Jan. 17, 2017 /PRNewswire/ -- Automotive
World – Intersil Corporation (NASDAQ: ISIL), a leading provider
of innovative power management and precision analog solutions today
announced the ISL78693, a 3.6V single-cell battery charger that
extends the life of Lithium Iron Phosphate (LiFePO4)
batteries used in automotive emergency call (eCall) systems. The
ISL78693 battery charger offers up to 4x lower leakage current
(3uA) than competitive chargers, allowing the eCall backup battery
to remain charged for a longer period of time. See a demonstration
of the ISL78693 in Intersil's booth #E30-11 at the Automotive World
conference, January 18-20 in
Tokyo, Japan.
Automakers worldwide are installing eCall in their Vehicle to
Infrastructure (V2I) systems. In the event of a crash, the eCall
system automatically broadcasts its location via GPS and contacts
the nearest 24-hour emergency call center for help. Thus, V2I eCall
systems must be capable of operating reliably and autonomously from
the backup battery at a moment's notice, even if the vehicle is
involved in an accident minutes after being parked for several
months.
The ISL78693 battery charger is designed to support emerging
worldwide eCall systems such as Japan's D-Call Net trial, which saves
additional life-saving seconds by automatically transmitting
vehicle data to an emergency call center that assesses collision
severity and dispatches ground or air-ambulance help. Europe's eCall initiative also brings
immediate assistance to motorists involved in a collision, and both
ERA-GLONASS in Russia and
OnStar® in the United
States provide safety and ambulance call services.
The ISL78693's battery temperature monitoring and low 3.6V
output voltage helps safeguard and extend the life of popular
LiFePO4 batteries. The ISL78693 offers a much simpler
and easier to use solution than the competition, requiring only
five external passive components to program the full charging
platform. The ISL78693's tiny 3mm x 3mm DFN package easily fits on
space-constrained PCBs, creating a very robust, small footprint
design. It also offers a unique charge current thermal foldback
feature that prevents overheating by automatically reducing the
battery charging current to enhance reliability.
"Carmakers want an automotive-qualified battery charger that
prevents rapid discharging of the backup battery during a traffic
accident or when the vehicle is parked for an extended period of
time," said Philip Chesley, senior
vice president of Precision Products at Intersil. "The ISL78693
leverages Intersil's innovative power management technology to
deliver a solution that provides the industry's lowest leakage
current and a charging profile optimized for eCall
applications."
Features and Specifications:
- Complete charger for single-cell Lithium chemistry
batteries
- Reverse battery leakage of 700nA (typ) and 3uA (max) over -40°C
to +85°C increases duration the backup battery remains charged when
Vin supply is off
- Up to 1A programmable charging current, allows trade-off of
battery charging time against heat dissipation and expected battery
lifetime
- Guaranteed operation down to 2.65V after start-up, preventing
shut off during cold-crank start
- 1% initial voltage accuracy provides precise control of
charging level to extend operating lifetime of battery
- Integrated power transistor and current sensor
- 10% trickle charge preconditions fully drained battery until it
reaches 2.6V minimum charge level
- NTC thermistor input protects battery by monitoring temperature
and shuts off charger when battery is outside the specified
charging temperature
- Accepts Constant Current/Constant Voltage (CC/CV) types of
voltage adapters or USB power
- AEC-Q100 Grade-3 qualified
The 3.6V ISL78693 is pin-compatible with the 4.1V ISL78692
Li-ion battery charger. Either charger can be combined with the
ISL78268 55V synchronous buck controller, ISL78201 2.5A synchronous
buck/boost regulator, ISL78206 2.5A synchronous buck regulator, and
ISL78233 3A synchronous buck regulator to provide a full power
supply solution from 12V lead acid battery to eCall battery.
Pricing and Availability
The ISL78693 battery charger
is available now in a 10-pin, 3mm x 3mm DFN package and is priced
at $0.99 USD in 1k quantities. An
ISL78693EVAL1Z evaluation board is also available for $56 USD. For more information, please visit:
www.intersil.com/products/isl78693.
About Intersil
Intersil Corporation is a leading
provider of innovative power management and precision analog
solutions. The company's products form the building blocks of
increasingly intelligent, mobile and power hungry electronics,
enabling advances in power management to improve efficiency and
extend battery life. With a deep portfolio of intellectual property
and a rich history of design and process innovation, Intersil is
the trusted partner to leading companies in some of the world's
largest markets, including industrial and infrastructure, mobile
computing, automotive and aerospace. For more information about
Intersil, visit our website at www.intersil.com.
Intersil and the Intersil logo are trademarks or registered
trademarks of Intersil Corporation. All other brands, product names
and marks are or may be trademarks or registered trademarks used to
identify products or services of their respective owners.
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SOURCE Intersil Corporation