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Home > Technology List > Integrated Circuit manages power of automotive infotainment.

Integrated Circuit manages power of automotive infotainment.

Update Time: 2019-12-18 12:23:20

Integrated Circuit manages power of automotive infotainment.

Hauppauge, NY, August 6, 2009 - SMSC (NASDAQ: SMSC), a leading semiconductor company that provides Smart Mixed-Signal Connectivity(TM) solutions, today announced the MPM85000, a low-cost, single-chip solution for power management of Media Oriented Systems Transport (MOST®) devices. Seeing the need to eliminate several discrete electronic components, SMSC's MPM85000 combines all necessary peripheral functions to implement a MOST network interface such as diagnostics, status monitoring and power supply.

The MPM85000 offers a small footprint 4x4mm², 24-pin QFN package and can be used for all MOST speed grades and physical interfaces whether an Electrical Physical Layer (ePHY) or Optical Physical Layer (oPHY). The internal 3.3V regulator supplies power to the fiber-optical receiver (FOR) for the plastic-fiber-based oPHY interfaces. While in sleep-mode, the MPM85000's current can be reduced to 30uA, which fulfills today's requirement to lower overall power consumption within a car. Additionally, the monitoring logic detects switch-to-power and wake-up events, and observes temperature and up to three configurable voltage levels. All operational states are reported to the MOST Intelligent Network Interface Controller (INIC) and to an external host controller (EHC).

SMSC's MPM85000 includes an integrated diagnostic LIN transceiver that supports ring-break diagnosis, wake-up and diagnostics communication according to the Electrical Control Line specification (ECL). The internal power-on-reset generator allows a save power up for the INIC, the EHC and, if used in MOST25 and MOST150 networks, also for the fiber optic transmitter (FOT). Implemented in MOST50 devices, the MPM85000 supports network activity detection on the ePHY interface for wake-up via the MOST network.

The MPM85000 focuses on the MOST-specific power management and does not include specific application power supply functionality. This makes it generically useable across all kinds of devices, independent from their specific power supply requirements regarding voltage and power. Therefore, the IC can be used in all types of devices from small node setups such as amplifiers to complex head units.

"The MPM85000 offers a highly integrated power management solution for the infotainment network within the car," said Stefan Lux, Product Manager for SMSC's Automotive Information Systems product line. "Through a single-chip solution, designers of infotainment systems benefit from board space savings, shorter development times and lower cost regardless of the MOST device configuration. The end result provides designers' an efficient, yet more robust system compared to a solution built solely on discrete components."

Samples of the MPM85000 are available today.




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About SMSC's Automotive Product Line:
SMSC's Automotive Information Systems is a supplier of TrueAuto(TM) infotainment and information semiconductor solutions to major automakers, including Audi, BMW, Daimler, Hyundai/Kia, Jaguar, Land Rover, Porsche, Toyota and Volvo. SMSC is a founding member of the MOST Cooperation, a cooperative of automakers, automotive systems architects and manufacturers and key components suppliers working to extend and refine the MOST® standard for the evolving requirements of automotive multimedia networking. Additional information is available at

About SMSC
SMSC is a leading developer of Smart Mixed-Signal Connectivity(TM) solutions. SMSC employs a unique systems level approach that incorporates a broad set of technologies and intellectual property to deliver differentiating products to its customers. The company is focused on creating connectivity solutions that enable the proliferation of data in personal computers, automobiles, portable consumer devices and other applications. SMSC's feature-rich products drive a number of industry standards and include USB, MOST® automotive networking, embedded system control and analog solutions, including thermal management and RightTouch(TM) capacitive sensing.

SMSC is headquartered in New York and has offices and research facilities in North America, Asia and Europe. Additional information is available at

SMSC and MOST are registered trademarks and Smart Mixed-Signal Connectivity and RightTouch are trademarks of Standard Microsystems Corporation.


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