New Digitally Enhanced Power Analog Controllers from Microchip Offer Digital Power Supply Flexibility with Easy Analog Contro...
October 21 2014 - 8:00AM
Business Wire
MCP19118/9 Provide Simple Analog PWM Control
and Configurable MCU in Compact Circuit Solution; Industry’s First
PMBus™ Compatible Controller with Up to 40V Operation
Microchip Technology Inc. (NASDAQ: MCHP), a leading provider of
microcontroller, mixed-signal, analog and Flash-IP solutions, today
announced its latest Digitally Enhanced Power (DEPA)
controllers—the MCP19118 and MCP19119 (MCP19118/9).
They provide simple yet effective analog PWM control for DC-DC
synchronous buck converters up to 40V, with the configurability of
a digital MCU. And they are the industry’s first devices to combine
40V operation and PMBus™ communication interfaces. These features
enable quick power-conversion circuit development with an analog
control loop that is programmable in the integrated 8-bit PIC® MCU
core’s firmware. This integration and flexibility is ideal for
power-conversion applications, such as battery-charging,
LED-driving, USB Power Delivery, point-of-load and automotive power
supplies.
Along with the rapidly growing popularity of digitally
controlled power supplies, due to their configurability for a
variety of operating conditions and topologies, power system
designers also have an increasing need for the ability to report
telemetry and conduct two-way communication (typically for
monitoring and fault reporting), via standard communication
interfaces such as PMBus. Additionally, the recently released USB
charging specifications (USB Power Delivery and the USB type C
connector) include variable charging voltages, which allow for
rapid device charging, but add potentially difficult hardware
requirements.
By integrating a supervisory microcontroller, the MCP19118/9
devices can create programmable power supplies. Key system
settings—such as switching frequency (100 kHz to 1.6 MHz), current
limits and voltage setpoints—can be adjusted on the fly during
operation by issuing write commands to the registers in the device.
One design can then be reused for additional applications, using
firmware updates to change the configuration, which minimizes
design, production and inventory requirements across multiple
platforms. Additionally, the integrated MCU core can be used to
monitor other parts of the application to sequence startup
operations; intelligently manage faults, under-voltage or brown-out
conditions; perform housekeeping functions; adjust power outputs in
response to load requirements (such as battery charging or USB port
power); and assisting with the module’s external interfaces
(monitoring or delivering signals to the user or system). With
integrated linear regulators, PWM generators, ADCs, MOSFET drivers,
analog error amplifiers and control-loop compensation, the
MCP19118/9 devices provide a very compact circuit solution.
Properly implemented, this system is capable of high conversion
efficiency and excellent transient response for reduced system
power losses, smaller heatsinks and longer battery life in portable
applications. These DEPA devices can also provide data over the
I2C™ interface, using customized SMBus or PMBus compatible
commands.
“This is another example of the award-winning innovation found
in Microchip’s digitally enhanced power analog product family,”
said Bryan J. Liddiard, marketing vice president of Microchip’s
Analog and Interface Products Division. “No other semiconductor
company offers this level of flexibility and configurability in its
DC-DC controllers, and no other product solution provides this
level of functionality for power-conversion, battery-charging or
LED-drive applications.”
Development Support
MCP19118/9 programming assistance is available via the
MCP19111 Design Analyzer and the MCP19111 Graphical User
Interface Plug-in for MPLAB® X IDE. Both of these software
tools are available today, via a free download from the
“Documentation & Software” section of the above links.
Additionally, Application Note AN1541 describes how to use
these tools.
Microchip’s full suite of standard development tools also
supports these MCP19118/9 DEPA controllers, including the MPLAB X
Integrated Development Environment (IDE), PICkit™ 3 (part #
PG164130), PICkit Serial Analyzer (part #DV164122), and the MPLAB
XC8 Compiler.
Pricing & Availability
The MCP19118 and MCP19119 are both available now
for sampling and volume production, with prices starting at $2.92
each in 5,000-unit quantities. The MCP19118 is offered in a 4x4 mm,
24-pin QFN package, while the MCP19119 is available in a 5x5 mm,
28-pin QFN package.
For additional information, contact any Microchip sales
representative or authorized worldwide distributor, or visit
Microchip’s Web site at http://www.microchip.com/get/MME2.
To purchase products mentioned in this press release, go to
microchipDIRECT or contact one of Microchip’s authorized
distribution partners.
Resources
High-res Images Available Through Flickr or Editorial Contact
(feel free to publish):
- Chip Graphic:
http://www.microchip.com/get/5L24
- Block Diagram:
http://www.microchip.com/get/ASE3
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About Microchip Technology
Microchip Technology Inc. (NASDAQ: MCHP) is a leading provider
of microcontroller, mixed-signal, analog and Flash-IP solutions,
providing low-risk product development, lower total system cost and
faster time to market for thousands of diverse customer
applications worldwide. Headquartered in Chandler, Arizona,
Microchip offers outstanding technical support along with
dependable delivery and quality. For more information, visit the
Microchip website at
http://www.microchip.com/get/LT49.
Note: The Microchip name and logo, PIC, and MPLAB are registered
trademarks of Microchip Technology Incorporated in the U.S.A. and
other countries. PICkit is a trademark of Microchip Technology Inc.
All other trademarks mentioned herein are the property of their
respective companies.
Tags / Keywords: Power Conversion, MOSFET, Analog
Control, Hybrid, Integrated, Mixed Analog, Digital Power, point of
load, PMBus
Microchip Technology Inc.Editorial Contact:Eric
Lawson, 480-792-7182eric.lawson@microchip.comorReader
Inquiries:1-888-624-7435http://www.microchip.com/get/MME2
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