San Jose, Calif. - An intelligent stepper motor driver IC from Atmel Corp., the ATA6830, includes a smart travel operation control block that conserves space and simplifies designs by eliminating the need for a microcontroller to handle the cruise-control function. Among other automotive applications, the device targets automatic headlamp adjustment in cars with xenon lights.
The part is manufactured with Atmel's 0.8-micron BCDMOS process, which supports operation at up to 45 volts. The ATA6830 includes a two-phase, 1-amp stepping motor driver in compensated half-step operation, a chopper current control and a unidirectional, single-wire bus interface with error feedback. Packaged in a 7 x 7-mm QFN28, the driver is priced from $2.10 in 10,000-piece quantities. Information is available at www.atmel.com/dyn/products/product_card.asp?part_id=2946.
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