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High-Performance Power ICs and Hall-Effect Sensors
Allegro MicroSystems, Inc. Releases New Latched Sink
Drivers
A6800 Series includes new 3.3 V logic capability, lower price 
Worcester, MA, July 22, 2005 — Allegro MicroSystems, Inc. announces the release of the A6800/01, A6821/41, and A6832/33 devices. These devices are cost-competitive latched sink drivers with 3.3 V logic supply capability, data input rates up to 10 MHz, and are RoHS compliant. As improved pin-to-pin replacements of the UCN5800/01, UCN5821/41, and UCN5832/33 devices respectively, these new DABiC-5 drivers contain a merged combination of bipolar and MOS technology for an interface flexibility beyond the reach of standard logic buffers and power driver arrays.
The A6800 and A6801 are latched-input BiMOS ICs merging high-current, high-voltage outputs with CMOS logic. The CMOS input section consists of four or eight data ('D' type) latches with associated common CLEAR, STROBE and OUTPUT ENABLE circuitry. The power outputs are 50 V/350 mA bipolar NPN Darlingtons with low saturation voltage. The A6800 contains four latched drivers, while the A6801 contains eight latched drivers.
The A6821 and A6841 contain an eight-bit CMOS shift register and CMOS control circuitry, CMOS data latches, and bipolar 50 V/500 mA current-sinking Darlington NPN output drivers. The merging of low-power CMOS logic and bipolar output power drivers permit the A6821/41 integrated circuits to be used in a wide variety of peripheral power driver applications. The A6841 also includes output transient, diodes making it suitable to drive inductive loads.
Designed to reduce logic supply current, chip size and system cost, the 32-bit serial-input A6832 and A6833 integrated circuits offer high-speed operation for thermal printers. Both integrated circuits can also be used to drive multiplexed LED displays or incandescent lamps at up to 150 mA peak current. The A6832 has 40 V bipolar NPN open-collector saturated output drivers, and the A6833 has 30 V bipolar NPN Darlington output drivers.
Targeted at the LED display, gaming, medical equipment and industrial markets, these A6800 series devices are offered in lead-free 100 percent matte tin plated, industry-standard packages.
Allegro MicroSystems, Inc. is a supplier of advanced mixed-signal power semiconductors and Hall-effect sensors targeted toward the automotive, communications, computer/office automation, consumer and industrial markets. It maintains a leadership position in the integrated magnetic sensor and integrated motor driver product segments. With over 2,000 employees, Allegro is headquartered in Worcester, MA. Further information about Allegro, as well as free samples on our products, can be found at www.allegromicro.com.
Editorial Contact:
Stephanie A. Fennelly
Director – Marketing Communications
Tel: (508) 854-5363
sfennelly@allegromicro.com