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Darlington arrays yield 500mA from outputs rated at 50V

20 Oct 2014

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Diodes Inc. has announced what it describes as higher performance, lower cost versions of the industry-standard ULN2000 series of Darlington arrays. According to the company, the devices feature seven open-collector Darlington transistors, each capable of producing a high output current of 500mA, from outputs rated at 50V.

ULN2000 series

With clamp diodes included, the Darlington arrays directly drive a variety of inductive loads, including relays and stepper motors in home appliance and industrial products. Three arrays have been announced by Diodes, ensuring compatibility with all common logic families. These are: ULN2002A (14-25V PMOS), ULN2003A (5V TTL, CMOS) and ULN2004A (6-15V CMOS, PMOS).

As drop-in replacements, all parts are provided in the small outline SO-16 package, with inputs and outputs of all Darlingtons pinned out in direct opposition to simplify PCB layouts. The array's -40°C to 105°C operating temperature addresses the requirements of industrial system design.




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