ULN2001A-ULN2004A is a high voltage, high current darlington array supplied by Dinghao Electronics. The array contains seven open collector darlington pairs with common emitters. Each channel is rated at 500mA and can withstand peak currents of 600mA. The array also includes suppression diodes for driving inductive loads, and the input pins are opposite the output pins to simplify board layout. The array is compatible with all common logic families: ULN2001A General Purpose, DTL, TTL, PMOS, CMOS ULN2002A 14-25V PMOS ULN2003A 5V TTL, CMOS ULN2004A 6-15V CMOS, PMOS. These versatile devices are useful for driving a wide range of loads, including solenoids, relays DC motors, LED displays filament lamps, thermal print- headsand high power buffers.
The ULN2001A‑ULN2004A series are high‑voltage, high‑current Darlington arrays, each containing seven open‑collector driver pairs. They are suitable for driving loads such as solenoids, relays, LED displays, filament lamps, and high‑power buffers.
This handbook includes absolute maximum ratings, electrical characteristics, thermal data, package mechanical dimensions, test circuits, and schematic diagrams, giving designers the information needed to integrate the devices into their circuits.
| Output current per driver | 500 mA continuous, 600 mA peak |
|---|---|
| Output voltage rating | 50 V |
| Darlington pairs per package | 7 |
| Continuous collector current (Ic) | 300 mA |
Each driver can source up to 500 mA continuously and 600 mA peak.
The devices are rated for an output voltage of 50 V.
Each package contains seven open‑collector Darlington driver pairs.