ULN2001, ULN2002, ULN2003, and ULN2004 are high voltage, high current Darlington arrays, each containing seven open collector Darlington pairs with common emitters. Each channel is rated at 500 mA and can withstand peak currents of 600 mA. Suppression diodes are included for inductive load driving, and the inputs are pinned opposite the outputs to simplify board layout. These versatile devices are useful for driving a wide range of loads, including solenoids, relays, DC motors, LED displays, filament lamps, thermal printheads, and high power buffers.
This document provides production data for the ULN2001, ULN2002, ULN2003, and ULN2004 high voltage, high current Darlington arrays. Each device contains seven open collector Darlington pairs with common emitters, rated at 500 mA continuous collector current and capable of withstanding peak currents of 600 mA. The arrays include integrated suppression diodes for driving inductive loads and feature inputs pinned opposite to outputs to simplify board layout.
The datasheet details the specific characteristics for four versions compatible with various logic families: ULN2001 for general purpose (DTL, TTL, PMOS, CMOS), ULN2002 for 14-25 V PMOS, ULN2003 for 5 V TTL/CMOS, and ULN2004 for 6-15 V CMOS/PMOS. Available in DIP-16 and SO-16 packages, these devices are designed for driving solenoids, relays, DC motors, LED displays, filament lamps, and thermal printheads.
| Output current (continuous) | 500 mA |
|---|---|
| Output current (peak) | 600 mA |
| Output voltage | 50 V |
| Number of drivers per package | Seven |
| Operating ambient temperature range | -40 to 85 °C |
| Junction temperature | 150 °C |
The ULN2001 interfaces to general purpose, DTL, TTL, PMOS, and CMOS logic families.
The maximum output voltage is 50 V.
Yes, suppression diodes are included for inductive load driving.
The ULN2004 is available in 16 pin plastic DIP packages and small outline package (SO-16).