Atmel's Unique System IC for Automotive DC Motors Boosts Integration Level


HEILBRONN, Germany, September 4 /PRNewswire/ --

- Industry's Only Device Integrating Voltage Regulator, Window Watchdog, 
and LIN Transceiver in One Package

Atmel(R) Corporation (Nasdaq: ATML) announced today the availability of
its new ATA6823 H-bridge driver IC designed using Atmel's state-of-the-art
0.8-um BCD-on-SOI technology (SMARTIS(TM)). The ATA6823 provides industry's
highest integration level and includes all functional blocks needed for a
complete microcontroller-controlled DC motor system in H-bridge 
configuration. The ATA6823 extends Atmel's broad driver family and is 
designed to control a large variety of external power N-MOSFETs. The device 
can be used with currents ranging from just 1.5A to over 100A, and this 
flexibility makes suitable for many different applications.

The ATA6823 is not just a simple driver IC. In fact, it is a complete
system IC that, in addition to the driver stages, includes the following
functional blocks: a pin-adjustable 5V/3.3V voltage regulator that supplies
the external microcontroller; a programmable window watchdog, which works
independently from the microcontroller's clock; and the same LIN transceiver
IP as found in Atmel's stand-alone LIN2.0 transceiver ATA6662. No other
device available on the market includes all these functions in one package.

The ATA6823's control logic takes over timing functions normally handled
by the microcontroller. These timing functions are used to protect external
transistors by preventing cross-conduction. As a result, use of the ATA6823
reduces programming efforts of system designers as only two microcontroller
functions, motor direction and PWM mode, need to be programmed. This
facilitates faster, more stable designs, and a shorter time to market.

The IC also provides a very low current consumption, less than 45
microamps in sleep mode, which reduces current consumption for
battery-powered systems.

Like all Atmel's driver ICs, the ATA6823 offers a broad range of
protection features (undervoltage, overvoltage, short circuit and
overtemperature). It also meets strict automotive qualification demands
(protection against conducted interference, EMC, and ESD protection) and can
withstand transients as specified in ISO/TR 7637.

Availability and Pricing

Samples of the ATA6823 driver IC are now available in RoHS-compatible 7
mm x 7 mm QFN32 packages with pricing starting at US $2.25 for 10k quantity.
An application board for development support can be ordered at US $130.

Footnote
    BCD = Mixed Technology: Bipolar CMOS DMOS
    DC = Direct Current
    EMC = Electro Magnetic Capability
    ESD = Electrostatic Discharge
    LIN = Local Interconnect Network
    PWM = Pulse Width Modulation
    QFN = Quad Flat No Leads
    RoHS = Reduction of Hazardous Substances
    SOI = Silicon on Insulator



About Atmel

Atmel is a worldwide leader in the design and manufacture of
microcontrollers, advanced logic, mixed-signal, nonvolatile memory and radio
frequency (RF) components. Leveraging one of the industry's broadest
intellectual property (IP) technology portfolios, Atmel is able to provide
the electronics industry with complete system solutions focused on consumer,
industrial, security, communications, computing and automotive markets.
(C) 2007 Atmel Corporation. All Rights Reserved. Atmel(R), logo and
combinations thereof, and others are registered trademarks, SMARTISTM and
others are trademarks of Atmel Corporation or its subsidiaries. Other terms
and product names may be trademarks of others.

Information

Product information on Atmel's new ATA6823 H-bridge driver IC may be
retrieved at: http://www.atmel.com/dyn/products/product_card.asp?part_id=4210

Press Contacts    
    Dr. Susanne van Clewe, Marcom Manager Communications and Automotive
     Products
    Phone: +49-7131-67-2081, Email: susanne.van-clewe@hno.atmel.com
    Helen Perlegos, Public Relations
    Phone: +1-408-487-2963, Email: hperlegos@atmel.com



Web site: http://www.atmel.com

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