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High-Performance Power ICs and Hall-Effect Sensors
Allegro Microsystems, Inc. Announces New Darlington
Transistors
Ideal Series of Power Transistors with Enhanced Thermal Stability 
Worcester, MA, August 23, 2007 — Allegro® announces a new series of Darlington transistors designed exclusively for audio amplifiers. With a high safe operating area, (SOA) and low thermal resistance derived from a new thinner-die technology, Allegro’s STD series achieves high power performance in a common small package, the TO-3P. This new series of parts is targeted at the home and professional audio amplifier markets.
Allegro’s STD01N/P and STD02N/P transistors provide a built-in thermal compensation diode on the same die, which eliminates any delay for thermal compensation operation and any delay between thermal sensing at the heat source and response at the compensation area. In addition, these devices achieve higher power levels through decreased thermal resistance, and can withstand higher voltages than similar devices on the market. Overall, these transistors are ideal for applications where enhanced thermal stability is required.
About Allegro
Allegro MicroSystems, Inc. is a leader in developing, manufacturing and marketing high-performance power integrated circuits and integrated Hall-effect magnetic sensors. Allegro’s innovative solutions serve high-growth applications within the automotive, communications, computer/office automation, consumer and industrial markets. Allegro is headquartered in Worcester, Massachusetts (USA) with design and applications centers located in North and South America, Asia, and Europe. Further information about Allegro can be found at www.allegromicro.com.
Editorial Contact:
Stephanie Fennelly
Communications Manager
Tel: (508) 854-5363
sfennelly@allegromicro.com