AUSTIN, Texas – Nov. 16, 2009 – Freescale Semiconductor is expanding its embedded motor control portfolio with the introduction of the S08MP16. This entry-level 8-bit microcontroller (MCU) family is designed to provide intelligent and cost-optimized solution for brushless DC (BLDC) motor control applications ranging from industrial drives to automotive fuel pumps.
BLDC motors continue to grow in popularity for consumer, industrial and automotive applications because they offer efficiency and reliability advantages over traditional brushed DC and induction motors. The S08MP16 MCU has been optimized to address this fast-developing motor segment but also can support other motor types, such as AC induction.
“Intelligent motor control is key in the effort to reduce global energy consumption, and Freescale has a strong legacy of delivering embedded solutions to address this need,†said Aiden Mitchell, director of Freescaleâ€
s Industrial & Multi-Market Microcontroller business. “The S08MP16 delivers a powerful, yet cost-effective, motor control solution for industrial and automotive applications. And, our complementary analog power products and comprehensive development resources make Freescale a ‘one-stop shop†for designers looking to simplify their development cycles.â€
Intelligence for safe and reliable control
Multiple, high-speed analog comparators and a powerful 8-channel FlexTimer pulse width modulation (PWM) module provide protection against over-current conditions by enabling fast and accurate motor shutdown. For household appliances that need to comply with IEC60730 safety standards, an independently clocked watchdog/COP and cyclic redundancy check (CRC) engine deliver clock failure protection features and memory content validation.
Rich analog integration
Designers using the S08MP16 benefit from a wide range of on-chip analog peripherals, minimizing the need for external components and helping reduce overall system cost. Peripherals include a programmable gain amplifier (PGA), multiple analog comparators and a 13-channel, 12-bit analog-to-digital converter (ADC) with PWM hardware triggering. The PGA enables precise motor control, with high-resolution ADC readings over a wide range of motor loads and speeds. The hardware dead-time insertion capability of the FlexTimer further improves system accuracy and reduces central processing unit loading when compared with software implementations.
Development resources and expertise
Freescale provides dedicated application support, including hardware reference designs, application notes and software algorithms and libraries covering all motor control topologies. In addition, Freescaleâ€s regional motor control centers of excellence provide application support from concept to delivery.
To help reduce time-to-market, a low-cost demonstration board (DEMO9S08MP16) is available for immediate device evaluation. The board comes with a complimentary version of the CodeWarriorÂ
IDE up to 32 KB, with the Processor Expertâ„¢ rapid application tool and FreeMASTER real-time control and monitoring tool. Freescale also offers complementary analog devices for motor control system solutions, including the MC33937 3-phase FET pre-driver and MC33880/87 and MC33926/32 H-bridges.
S08MP16 MCU features
- S08 CPU
- Industrial version: 25MHz bus speed, 2.7-5.5V, -40°C to +105°C
- Automotive version: 20MHz bus speed, 2.7-5.5V, -40°C to +125°C
- 16 KB flash read/program/erase over full operating voltage and temperature
- 1 KB random access memory
- Three high-speed analog comparators
- 12-bit analog-to-digital converter
- Two FlexTimers (2-channel + 6-channel) providing selectable input capture, output compare, edge- or center-aligned PWM, dead time insertion in hardware and fault inputs
- 8-bit modulo counter
- Differential programmable gain amplifier
- Two programmable delay blocks
- Serial communications interface, serial peripheral interface and inter-integrated circuit Â
- Cyclic redundancy check engine and watchdog/COP with independent clock option
- Low-power modes and peripheral clock gating for unused modules
- Internal clock source
- Small-footprint 28SOIC, 32LQFP and 48LQFP package options. Automotive (high-temperature) version offered in 48LQFP package.
The S08MP16 MCU is included in Freescaleâ€s product longevity program, with assured supply for a minimum of 10 years. See www.freescale.com/productlongevity for details.
Pricing and availability
Industrial- and automotive-qualified samples of the S08MP16 are available now in sample quantities, with production quantities planned for early 2010. Suggested resale pricing starts from $1.10 (USD) for 10,000-unit quantities. The DEMO9S08MP16 demonstration board is available at a suggested resale price of $69 (USD).
For more information, visit www.freescale.com/S08MP16 Â