ULN2003R

DESCRIPTION 

The UTC ULN2003R is high-voltage, high-current darlington 

transistor arrays. Each consists of seven NPN darlington pairs 

that feature high-voltage outputs with common-cathode clamp 

diodes for switching inductive loads. The collector-current rating 

of a single darlington pair is 500mA. All units feature integral 

clamp diodes for switching inductive loads. Applications include 

relay, hammer, lamp and display (LED) drivers. 

The UTC ULN2003R has a 2.7kΩ series base resistor for 

each darlington pair for operation directly with TTL or 5V CMOS 

devices. 

FEATURES 

* Output Current (Single Output): 500mA max 

* High Sustaining Voltage Output: 50V min 

* Inputs Compatible with Various Types of Logic 

* Output Clamp Diodes 

* Relay-Driver Applications 

规格书ULN2003R