Part Number : ULN2003AD
Function : HIGH-VOLTAGE, HIGH-CURRENT DARLINGTON TRANSISTOR ARRAYS
Package : DIP, SOP 16 Pin type
Maker : Texas Instruments
Pinouts : 
Description :
The ULx200xA, ULN2003AD devices are 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 500 mA. The Darlington pairs can be paralleled for higher current capability. Applications include relay drivers, hammer drivers, lamp drivers, display drivers (LED and gas discharge), line drivers, and logic buffers. For 100-V (otherwise interchangeable) versions of the ULx2003A devices, see the SLRS023 data sheet for the SN75468 and SN75469 devices.
Features
• 500-mA-Rated Collector Current (Single Output)
• High-Voltage Outputs: 50 V
• Output Clamp Diodes
• Inputs Compatible With Various Types of Logic
• Relay-Driver Applications
Datasheet PDF Download : 
Others datasheet of same file :
ULN2001, ULN2001A, ULN2001-AD, ULN2001ADR, ULN2001AN