CONVERGENCE SHOW, DETROIT, October 16 /PRNewswire/ --
- SOI Technology Allows Chip Temperatures of up to 200 degrees C andAmbient Temperatures of up to 150 degrees C
Atmel(R) Corporation (Nasdaq: ATML), a global leader in the developmentand fabrication of advanced semiconductor solutions, announced today theavailability of three new driver ICs for high-temperature applications(AECQ100, Grade 0). The ATA6824, ATA6827 and ATA6832 are designed usingAtmel's new high-voltage SMARTIS(TM) technology that enables extremely highchip temperatures of up to 200 degrees C. As a result, ambient temperaturesof up to 150 degrees C can be achieved, allowing the use of these devices inhot environments. In mechatronic solutions such as turbochargers or exhaustgas recirculation systems, many flaps have to be controlled by DC-motordriver ICs which are located very close to a hot engine. To design a completemotor-control system solution, designers can combine the new driver ICs withAtmel's well-known family of ATmega 8-bit AVR(R) Flash microcontrollersqualified for high-temperature automotive applications.
In contrast to standard BCDMOS bulk technology, Atmel's innovativeSMARTIS technology uses an SOI (Silicon-On-Insulator) substrate. Due to theSOI technology's dielectric isolation, the junction leakage, a major issue inhigh-temperature designs, can be minimized. Furthermore, SOI devices providesuperior latch-up immunity for increased reliability of circuits operating inhot environments.
The small, and low-cost ATA6827 is a fully-protected triple half-bridgedriver with integrated power stages to control up to 3 different loads by amicrocontroller. Each of the three high-side and three low-side drivers arecapable of driving currents up to 1.0A. The ATA6827 supports the applicationof H-bridges to drive DC motors very well. The operation modes reverse,brake, and high impedance are controlled by the SPI interface. The enhancedversion, ATA6832, provides an additional PWM functionality with up to 25 kHz,enabling a DC motor control to be generated without any audible noise causedby the PWM signal.
If higher output currents are required, the ATA6824 highly-integratedMOSFET driver IC is ideal. In addition to the H-bridge driver functionality,this device also includes a 5V/3V voltage regulator for microcontrollersupply, a window watchdog and a serial interface. In contrast to competingproducts, the ATA6824 includes the motion control functionality on-chip sothat only the direction command and the PWM signal for the speed informationneeds to be provided by the microcontroller. Due to the high integration,overall system costs can be reduced while maintaining maximum flexibilityregarding the external output stages. Also, high integration results in fewerexternal components and thus smaller designs with reduced PCB area -- acritical issue with automotive mechatronic applications.
The ATA6824, ATA6827 and ATA6832 driver ICs provide several protectionfeatures such as over-temperature shutdown, overload and over-voltageprotection, as well as protection against short circuits. The devices alsomeet the strict automotive qualification demands (protection againstconducted interference, EMC and ESD protection) and can withstand transientsas specified in ISO/TR 7637.
Price and Availability
Samples of the driver ICs ATA6824 (QFN32 package), ATA6827 (QFN18package) and ATA6832 (QFN18 package) are available now. The pricing isUS$1.85 for the ATA6824, US$1.00 for the ATA6827 and US$1.05 for the ATA6832(at 10k each).
Footnotes: BCDMOS = Mixed-signal technology with Bipolar, CMOS and DMOS components DC = Direct Current EMC = Electro Magnetic Compatibility ESD = Electronic Static Discharge PCB = Printed Circuit Board PWM = Pulse Width Modulation SOI = Silicon On Insulator technology
About Atmel
Atmel is a worldwide leader in the design and manufacture ofmicrocontrollers, advanced logic, mixed-signal, nonvolatile memory and radiofrequency (RF) components. Leveraging one of the industry's broadestintellectual property (IP) technology portfolios, Atmel is able to providethe electronics industry with complete system solutions. Focused on consumer,industrial, security, communications, computing and automotive markets, AtmelICs can be found Everywhere You Are(R).
NOTE: Atmel(R), logo and combinations thereof, AVR(R), Everywhere YouAre(R), and others are registered trademarks, SMARTIS(TM) and others aretrademarks of Atmel Corporation or its subsidiaries. Other terms and productnames may be trademarks of others.
Information
Product information on Atmel's new motor-driver ICs ATA6824, ATA6827 andATA6832 may be retrieved at:
http://www.atmel.com/dyn/products/product_card.asp?part_id=4003 (ATA6824) http://www.atmel.com/dyn/products/product_card.asp?part_id=4004 (ATA6827) http://www.atmel.com/dyn/products/product_card.asp?part_id=4005 (ATA6832)
Contact: Dr. Susanne van Clewe, Marcom Manager Communications andAutomotive Products, +49-7131-67-2081, or susanne.van-clewe@hno.atmel.com; orHelen Perlegos, Public Relations - USA and Asia Pacific, +1-408-487-2963, orhperlegos@atmel.com; or Veronique Sablereau, Corporate Communications Manager- Europe, +33-1-30-60-70-68, or Fax, +49-7131-67-2423, orveronique.sablereau@atmel.com.
Web site: http://www.atmel.com
Atmel Corporation
Dr. Susanne van Clewe, Marcom Manager Communications and Automotive Products, +49-7131-67-2081, or susanne.van-clewe@hno.atmel.com; or Helen Perlegos, Public Relations - USA and Asia Pacific, +1-408-487-2963, or hperlegos@atmel.com; or Veronique Sablereau, Corporate Communications Manager - Europe, +33-1-30-60-70-68, or Fax, +49-7131-67-2423, or veronique.sablereau@atmel.com
