Product category:
Microprocessors, Microcontrollers and DSPs
News Release from: Texas Instruments (April 2006-) | Subject: TMS320F280xx
Edited by the Electronicstalk Editorial
Team on 03 July 2006
Budget controllers target powerful
designs
Four new low-cost members of the TMS320F280xx digital signal controller series are targeted at motor control, digital power conversion and intelligent sensor control applications.
Helping embedded control designers make the transition to 32bit DSP-based controllers, Texas Instruments has added four new low-cost members to the TMS320F280xx digital signal controller series targeted at motor control, digital power conversion and intelligent sensor control applications The new TMS320F28015 and F28016 controllers offer 60MHz of performance starting as low as $3.25 (in 1000-unit quantities) and the new TMS320F2801-60 and F2802-60 controllers also offer 60MHz of performance and are based on the current TMS320F2801 and F2802 devices
This article was originally published on Electronicstalk on 16 Nov 2006 at 8.00am (UK)
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TI is also announcing a new digital power development kit, which consists of a TMS320C2000T digital power supply (DPS) software library and a series of hardware modules from Tier Electronics that provide off-the-shelf platforms that engineers can control with this software library.
As designers consider upgrading existing 8 or 16bit microcontroller- (MCU) based designs, TI's F280xx controllers offer a portfolio of 11 software and pin-for-pin compatible devices with 32bit DSP performance combined with the peripheral integration and ease of use of an MCU.
All F280x-based devices feature a 32bit wide data path for superior performance and mixed 16/32bit instruction set for improved code density.
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These controllers offer exceptional system integration by providing complete control system capabilities from signal input through the on-chip,12bit analogue to digital convertor (ADC), quadrature encoder pulse (QEP) interfaces, and timer captures and compares through signal output with up to 10 independent pulsewidth modulation (PWM) channels.
Depending on the device, communication interfaces include CAN, I2C, UART and SPI ports.
All four new F280x devices feature a patent-pending pulsewidth modulator (PWM) with 150ps resolution.
The high resolution PWM (HRPWM) provides 16bit accuracy in a 100kHz control loop and 12bit at 1.5MHz.
As a result, power developers benefit from designs with cleaner power output, higher power density, smaller magnetics and more compact, cooler supplies.
These benefits are critical in applications like AC/DC rectifiers that require high tolerances and faster transient response with small ripple amplitude.
For motor control applications such white goods and automotive, designers can reduce overall system costs through integration and low device cost while leveraging the 32bit performance necessary to implement advanced control techniques like sensorless vector control of three-phase motors.
Using processor-intensive senorless vector control can help developers to reduce the size and cost of a system's motors and power electronics required to meet their needs.
All four new controllers are AEC Q100 automotive qualified in 100-pin LQFP packaging.
Developers can use the TMS320F2808 eZdsp development kit (TMDSEZS2808) to program all four of the new controllers.
It is available today for $495 from TI authorised distributors.
The eZdsp kit includes a reference hardware platform with USB connection to the PC and the TI Code Composer Studio integrated development environment.
Targeted initially at AC/DC rectifier and DC/AC inverter applications, the new digital power development kit includes the DPS software library and DPS hardware modules.
The DPS library provides reference software for key functions used in an AC/DC rectifier, solar energy inverter, and uninterruptible power supply applications.
This free, fully documented software, written in optimised C, will aid engineers new to digital control of power supplies and allow them to translate their analogue experience into the digital realm.
DPS library components available today include two-phase boost power factor correction (PFC), multichannel DC/DC conversion, and a single-phase DC/AC inverter with additional software components to be added.
The DPS library can be downloaded for free from the TI website.
The DPS hardware modules are low-cost boards from Tier Electronics, a leading TI third party.
The modules provide an easy way for engineers to start working on F280x controller-based digital power designs quickly without having to build their own controller or power stage hardware.
The first two modules in the kit are targeted at PFC and DC/DC convertor designs.
The PFC module is a two-phase boost topology while the DC/DC module is a dual phase-shifted full-bridge topology.
Each board is available individually for $295 directly from Tier and connects easily to TI's TMS320F2808 eZdsp development kit, which provides the controller hardware.
The DPS hardware modules can be controlled individually by the eZdsp or connected together for an AC/DC rectifier application.
The TMS320F2808 eZdsp development kit (TMDSEZS2808) is available for $495 from Texas Instruments.
The DPS hardware modules will be available from Tier starting in late September.
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