Atmel Introduces New BCDMOS Driver Interface IC with Improved Performance; Dedicated for 40-V Automotive Applications.Business Editors/High-Tech Writers HEILBRONN, Germany--(BUSINESS WIRE)--Oct. 21, 2002 Atmel(R) Corporation (Nasdaq:ATML ATML Automatic Test Markup Language ATML Automated Test Markup Language ) announced today the availability of a new BCDMOS driver interface IC with improved performance features. The new ATA (1) (AT Attachment) The specification for IDE drives. See IDE. (2) See analog telephone adapter. ATA - Advanced Technology Attachment 6822 is manufactured using Atmel's 0.8-micron BCDMOS process to support operations up to 40 Volts. This technology is optimized for applications in harsh environments. The new device is designed for motor control applications such as DC motor control in H-bridge configurations. The new ATA6822 is based on Atmel's well-known U6815BM driver IC. It includes 4 push-pull output For other uses of "push-pull", see Push-pull. A push-pull output is a type of electronic circuit that can drive either a positive or a negative current into a load. Push-pull outputs are present in TTL and CMOS digital logic circuits and in some types of amplifier, and are stages, a charge pump A charge pump is an electronic circuit that uses capacitors as energy storage elements to create either a higher or lower voltage power source. Charge pump circuits are capable of high efficiencies, sometimes as high as 90-95% while being electrically simple circuits. , overvoltage as well as overtemperature protection and a control logic to communicate with a microcontroller. This communication is very simple, as two logic inputs define source or sink mode of the output stages. The output stages (each capable of 1.7 A typically) are internally designed as half bridges with two output pins to connect the load(s). An enable signal sets the ATA6822 to current-saving standby mode with a current as low as only 5 microamperes (maximum). Compared with conventional driver interface ICs, this new device provides several technical improvements. For example, the output pins are able to withstand DC voltages up to 40 V, whereas competitive devices only reach up to 28 V. This helps to save external protection components. The device's on-resistance is as low as 2 Ohms for lower power dissipation and a less complicated heat sink assembly. Higher operational current is achieved through a minimum current limitation of 1.3 A. Oscillations oscillations See Cortical oscillations. can be avoided thanks to the 0.5 V overvoltage hysteresis hysteresis (hĭs'tərē`sĭs), phenomenon in which the response of a physical system to an external influence depends not only on the present magnitude of that influence but also on the previous history of the system. . A minimized delay time of up to 12 microseconds makes the device well-suited for applications where a fast reaction time is mandatory. As with all Atmel BCDMOS driver ICs, the ATA6822 provides full circuit protection. Short-circuit conditions at the outputs are detected and the current is limited to a typical value of 1.7 A. In case of overtemperature or overvoltage, the outputs are switched off and the diagnostic output is activated. The device also meets the strict automotive qualification demands (protection against conducted interference, EMC (1) (EMC Corporation, Hopkinton, MA, www.emc.com) The leading supplier of storage products for midrange computers and mainframes. Founded in 1979 by Richard J. Egan and Roger Marino, EMC has developed advanced storage and retrieval technologies for the world's largest companies. and 2-kV ESD (1) (Electronic Software Distribution) Distributing new software and upgrades via the network rather than individual installations on each machine. See ESL. protection) and can withstand transients according to ISO/TR 7637/1. The ATA6822 comes in an SO20 package, which supports the device's heat transfer with 4 fused leads on both sides. On the printed circuit board layout, large copper traces to these pins are recommended with a connection to an appropriate heat sink such as a metal case. Samples of the new BCDMOS driver interface IC ATA6822 in SO20 package are available now. Pricing starts at US$ 0.90 (10 k). About Atmel Founded in 1984, Atmel Corporation is headquartered in San Jose, California San Jose (IPA: /ˌsænhoʊˈzeɪ/) is the third-largest city in California, and the tenth-largest in the United States. It is the county seat of Santa Clara County. with manufacturing facilities in North America and Europe. Atmel designs, manufactures and markets worldwide, advanced logic, mixed-signal, nonvolatile memory and RF semiconductors. Atmel is also a leading provider of system-level integration semiconductor solutions using CMOS (Complementary Metal Oxide Semiconductor) Pronounced "c-moss." The most widely used integrated circuit design. It is found in almost every electronic product from handheld devices to mainframes. , BiCMOS, SiGe, and high-voltage BCDMOS process technologies. Note to Editors: Atmel, the Atmel logo and combinations thereof and others contained herein, are trademarks of Atmel Corporation. Terms and product names in this document may be the trademarks of others. Information Atmel's BCDMOS driver interface IC ATA6822 information may be retrieved at: http://www.atmel.com/atmel/acrobat/doc3d918511054cb.pdf, further Automotive product info from Atmel may be found at http://www.atmel.com/atmel/products/prod425.htm Requests may be sent via e-mail to literature@atmel.com or by visiting Atmel's website at www.atmel.com. |
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