UDN-2580A

The UDN-2580A has the following features including TTL, CMOS, PMOS, NMOS Compatible;High Output Current Ratings;Internal Transient Suppression;Efficient Input/Output Pin Structure.

THIS versatile family of integrated circuits, originally designed to link NMOS logic with high-current inductive loads, will work with many combinations of logic- and load-voltage levels, meeting interface requirements beyond the capabilities of standard logic buffers.Series UDN-2580A source drivers can drive incandescent, LED, or vacuum fluorescent displays. Internal transient-suppression diodes permit the drivers to be used with inductive loads.Type UDN-2580A is a high-current source driver used to switch the ground ends of loads that are directly connected to a negative supply.Typical loads are telephone relays, PIN diodes, and LEDs.Type UDN-2585A is a driver designed for applications requiring low output saturation voltages. Typical loads are low-voltage LEDs and incandescent displays. The eight non-Darlington outputs  will simultaneously sustain continuous load currents of -120 mA at ambient temperatures to+70.Type UDN-2588A, a high-current source driver similar to Type UDN-2580A, has separate logic and driver supply lines. Its eight drivers can serve as an interface between positive logic (TTI,CMOS,PMOS) or negative logic (NMOS) and either negative or split-load supplies.Types UDN-2580A and UDN-2588A are rated for,operation with output voltages of up to 50 V. Selected devices, carrying the suffix"-1" on the Sprague part number, have maximum ratings of 80 V.Types UDN-2580A and UDN-2585A are furnished in 18-pin dual in-line plastic packages; Type UDN-2588A is supplied in a 20-pin dual in-line plastic package. All input connections are on one side of the packages, output pins on the other, to simplify printed wiring board layout.

For simplification, these devices are characterized on the following pages with specific voltages for inputs, logic supply (VS), load supply (VEE), and collector supply (V}}). Typical use of the UDN-2580A and UDN-2580A-1 is with negative referenced logic. The more common applicanon of the UDN-2585A, UDN-2588A, and UDN-2588A-1 is with positive referenced logic supplies. The substrate must be tied to the rnost nekative point in the external circuit to maintain isolation between drivers and to provide for normal circuit operation.