Darlington arrays drive big inductive loads
Diodes has introduced higher performance, lower cost versions of its ULN2000 series of Darlington arrays.
The devices integrate seven open-collector Darlington transistors, each capable of producing a high output current of 500mA, from outputs rated at 50V.
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 introduced, ensuring compatibility with all common logic families. These are: ULN2002A (14 to 25V PMOS), ULN2003A (5V TTL, CMOS) and ULN2004A (6 to 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.
Operating temperature is rated from -40 to 105ºC.
