ULN2004A Description

The ULN2004A is a high-voltage, high-current Darlington Array with seven open collectors Darlington couples that share emitters. Each channel is rated at 500 mA and has a peak current rating of 600 mA. For inductive load driving, suppression diodes are added, and the inputs are pinned opposite the outputs to simplify the board layout. ULN2001 (general purpose, DTL, TTL, PMOS, CMOS); ULN2002 (14 - 25 V PMOS); ULN2003 (5 V TTL, CMOS); ULN2004 (general purpose, DTL, TTL, PMOS, CMOS) (6 - 15 V CMOS, PMOS). These adaptable devices can supply a variety of loads, including solenoids, relay DC motors, LED display filament lights, thermal printheads, and high-power buffers.

ULN2004A Features

● Output clamp diodes
● Inputs compatible with various types of logic
● Package Type−AP : DIP−16pin
● Package Type−AFW : SOL−16pin
● High sustaining voltage output 50 V MIN. (ULN2003AP / AFW Series)
● Seven Darlingtons per package
● Output current 500 mA per driver (600 mA peak)
● Output voltage 50 V
● Integrated suppression diodes for inductive loads
● Outputs can be paralleled for higher current
● TTL/CMOS/PMOS/DTL compatible inputs
● Input pins placed opposite to output pins to simplify layout

ULN2004A Applications

● Solenoids
● Relay DC Motors
● LED Display Filament Lamps
● Thermal Printheads
● High-power Buffers