Legit Reviews

Yokohama, Japan, April 27, 2011 — Fujitsu Semiconductor Limited today announced that three products of "MB91580series" which contain driving motor control function for Electrical Vehicle (EV) and Hybrid Vehicle (HV) as a part of high performance 32bit FLASH embedded microcontroller(MCU) "FR family". Sample delivery will start at the end of April 2011.

"MB91580 series" supports the demand for automotive driving motor control MCU with dedicated embedded resolver sensor interface as a pioneer to control three phase motor used in EV and HV which demand is growing rapidly and globally as eco-cars. This is first time for Fujitsu Semiconductor to deliver driving motor control LSI for Eco-CAR and support demand for the market.

Nowadays, the interest for environment of the earth is increasing and the demand for eco-cars like electric vehicle and hybrid vehicle is increasing to reduce exhaust gas which infects the air. In order to familiarize the eco-cars and drive ecology further, three innovations = "Improved mobility of motors", "Low energy consumption", and "System cost reduction" is required.

Fujitsu provides 32bit MCU "MB91580 series" for driving motor control to support such demand quickly and start delivery at the end of April.


Fig.1 Motor control MCU Roadmap

Larger View

"MB91580 series" contains the best suitable CPU core and peripherals for EV/HV motor control. Especially, in terms of resolver sensor used for EV/HV driving motor, the dedicated interface circuit is embedded in order to achieve "System cost reduction" and in order to contribute "Improved mobility of motors", and "Low energy consumption" by realizing high torque responsive control process which is required for EV/HV driving motor.

Sample price and delivery time
Series Sample Price Sample delivery time
MB91580 series $25
(Price in case of MB91F585) Apr 2011
Lineup
Part number Main Flash Capacity RAM Capacity
MB91F585 576 KB 48 KB
MB91F586 832 KB 64 KB
MB91F587 1088 KB 96 KB

KB : Kilo Byte
Sales Target

2 million pcs in 3 products total are expected in FY2014
Feature of this series

1.Peripherals which are suitable for high torque responsive control process
Following peripherals are available for EV/HV driving motor control which needs high torque responsiveness. By having these peripherals built-in, "System cost reduction", as well as high speed feedback control become possible, which realize "Improved mobility of motors", and "Low energy consumption".

12bit A/D converter and R/D converter to detect the electric current and position of the motor with high precision are available. R/D converter detects the electrical angle synchronizing with A/D converter which detects three phase electric current.
An exclusive calculation circuit which automatically calculates SIN (sine) value and COS (cosine) value of the electrical angle detected by built-in R/D converter is installed.The information needed for feedback control of motor is generated by hardware.



Fig2. Detection of electric current and postion and feedback control

Larger View

2.FPU built-in High performance CPU core
Exclusive Floating Point Unit(FPU) which is included in 160DMIPS high performance CPU enables to process vector conversion and PID control calculation using the information generated by built-in peripherals.This feature contributes to "Improved mobility of motor" and "Low power consumption" by realizing further fast feedback control. In addition, by holding down CPU load depending on motor control, the control for systems other than the power motor (DC/DC converter and battery management, etc.) is enabled, and this contributes to "Total cost reduction" by system integration.

About Fujitsu Semiconductor

Fujitsu Semiconductor Limited designs, manufactures, and sells semiconductors, providing highly reliable, optimal solutions and support to meet the varying needs of its customers. Products and services include microcontrollers, ASICs, ASSPs, and power management ICs, with wide-ranging expertise focusing on mobile, ecological, automotive, imaging, security, and high-performance applications. Fujitsu Semiconductor also drives power efficiency and environmental initiatives. Headquartered in Yokohama, Fujitsu Semiconductor Limited (formerly named Fujitsu Microelectronics Limited) was established as a subsidiary of Fujitsu Limited on March 21, 2008. Through its global sales and development network, with sites in Japan and throughout Asia, Europe, and the Americas, Fujitsu Semiconductor offers semiconductor solutions to the global marketplace.
For more information, please see: : http://jp.fujitsu.com/fsl/en/