ULN2003 Darlington Transistor Array

Product Specifications

• IC number: ULN2003
• Function: Darlington Transistor Array
• Number of pins: 16
• Pin type: DIP
• package contains: 1 piece of ULN2003 IC unused

Features

The ULN2003A is a high-voltage high-current Darlington transistor arrays device.</li>

Each IC or chip has 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: ? 500 mA.

We can parallel The Darlington pair to get the high current capability.

Applications of ULN2003: ? relay drivers hammer drivers lamp drivers display drivers (LED and gas discharge) line drivers and logic buffers.

The ULN2002A IC is specifically designed for use with 14-V to 25-V PMOS devices.

To control the input current to a safe limit each input of ULN2003 has resistor and Zener diode.

The ULN2003A has a 2.7-k? series base resistor for each Darlington pair for operation directly with TTL or 5-V CMOS devices.