ULN2803 Driver

The ULN2803 Driver-ULN2805A each contain eight darlington transistors with common emitters and integral suppression diodes for inductive loads. Each darlington features a peak load current rating of 600mA (500mA continuous) and can withstand at least50V in the off state.Outputs maybe paralleled for higher current capability.Five versions are available to simplify interfacing to standard logic families :The ULN2801Ais designed for general purpose applications with a current limit resistor ;The ULN2802A has a 10.5kW input resistor and zener for 14-25VPMOS;TheULN2803A has a 2.7kW input resistor for 5V TTL and CMOS ;The ULN2804A has a 10.5kW input resistor for 6-15V CMOS and the ULN2805A is designed to sink a minimum of 350mA for standard and Schottky TTL where higher output current is required.The ULN2803A device is a 50 V, 500 mA Darlington transistor array. The device consists of eight NPN Darlington pairs that feature high-voltage outputs with common-cathode clamp diodes for switching inductive loads. The collector-current rating of each Darlington pair is 500 mA. The Darlington pairs may be connected in parallel for higher current capability.Applications include relay drivers, hammer drivers, lamp drivers, display drivers

FEATURES of ULN2803 Driver:

*Maximum output voltage:50V

*Maximum Input Volage:30V

*Power Dissipation per Darlington pair:1W

*Power Dissipation per Total package:2.25W

*Eight darlingtons with common emitters

*Integral suppression diodes

*Versions for all popular logic families

*Output can be paralleled

*Inputs pinned opposite outputs to simplify board layout

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