MILPITAS, Calif., Nov. 10, 2016 /PRNewswire/ -- Intersil
Corporation (NASDAQ: ISIL), a leading provider of innovative power
management and precision analog solutions, today introduced two new
USB-C™ buck-boost battery chargers that support bidirectional power
delivery in ultrabooks, tablets, power banks and other mobile
products. The single-chip ISL9238 and ISL9238A battery chargers
replace competitive two-chip solutions to reduce customer bill of
materials (BOM) costs by up to 40%. Both ICs employ Intersil's
patented R3™ modulation technology to extend battery life and
deliver acoustic noise-free operation, superior light-load
efficiency and ultra-fast transient response.
The ISL9238 and ISL9238A operate in forward buck, boost or
buck-boost mode to fast charge mobile battery packs with up to
4-cell Li-ion batteries. They also support USB 3.1 On-The-Go (OTG)
with 5V/20V reverse buck, boost or buck-boost mode to deliver power
out of a USB-C port for charging external devices such as
smartphones, headphones or virtual reality goggles. At maximum
power, both ICs provide 20V at 5A to the USB-C port for delivery of
power up to 100W over a reversible USB Type-C connector cable. The
ISL9238A features the same capabilities as the ISL9238, but also
includes a different SMBus address for OEMs that want to use both
ICs to design systems with dual USB-C ports.
In charging mode, the ISL9238 and ISL9238A take input power from
a wide range of DC power sources, including AC/DC charger adapters,
USB power delivery (PD) ports and any travel adapter. Both chargers
include SMBus and I2C programmable features such as depleted
battery trickle charging, and a two-level adapter current limit for
turbo-mode events where the charger takes advantage of the
adapter's milliseconds of surge current capability to minimize
power draw and extend battery run-time. The ISL9238 and ISL9238A
also feature programmable autonomous charging and an end of charge
safety timer to stop battery charging.
"The new ISL9238/A USB-C buck-boost battery chargers give our
customers more features, including 5V/20V reverse buck, boost and
buck-boost modes, and the ability to add dual ports for two USB-C
battery chargers in one system," said Andrew Cowell, senior vice president of Mobile
Power Products at Intersil. "Mobile computing OEMs rely on Intersil
to consistently deliver power management innovations that help them
differentiate their products with thinner form factors and
exceptionally long battery life."
The ISL9238 and ISL9238A are pin-compatible with the ISL9237
USB-C battery charger and join Intersil's family of mobile
computing power management solutions, including the ISL95852 Vcore
PMIC, ISL95908 peripheral PMIC, and discrete PWM controllers
(ISL95853/54/55/57). These ICs power IMVP8-compliant mobile systems
using 6th and 7th Gen Intel® Core™ processors.
Key Features and Specifications of ISL9238 and
ISL9238A
- Buck-boost NVDC charger for 1-, 2-, 3-, or 4-cell Li-ion
batteries
- Input voltage range of 3.2V to 23.4V (no dead-zone)
- System output voltage of 2.4V to 18.304V
- Up to 1MHz operation allows use of smaller, lower cost
inductors and automatically reduces switching frequency with no
audible acoustic noise when charger is in DCM mode
- ASGATE FET control: actively controls inrush current to prevent
FET damage
- Low-power and high-power LDO outputs tie to VDD pin to provide
bias power and MOSFET gate drive power
- Compliant with Intel PROCHOT# and PSYS for protection against
battery voltage drop, adapter over-current, battery over-current
and overheat
- Allows trickle charging of depleted battery
- Autonomous charging option provides end of charge control using
safety timer to stop battery charging
- SMBus/I2C programmable limit settings with adapter current
monitor (AMON) and battery discharging current monitor (BMON)
- Battery learn mode calibrates the battery fuel gauge
- ISL9238A includes a different SMBus address to support charging
a second battery
Pricing and Availability
The ISL9238 and ISL9238A
buck-boost battery chargers are available now and priced at
$3.50 USD in 1k quantities. Both
battery chargers are supplied in 4mm x 4mm, 32-lead TQFN packages.
For more information, please visit
www.intersil.com/products/isl9238.
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, R3 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