The ULN2001A/2002A/2003A/2004A are high voltage, high current darlington arrays each containing seven open collector darlington pairs with common emitters. Each channel rated at 500 mA and can withstand peak currents of 600 mA.
The ULN200xA and ULN200xD1 families are high‑voltage, high‑current Darlington arrays containing seven open‑collector drivers with common emitters. They are suitable for driving loads such as solenoids, relays, DC motors, LED displays, filament lamps, thermal printheads and power buffers, and are compatible with TTL, CMOS, PMOS and DTL logic families.
Key features include a maximum output current of 500 mA per driver (600 mA peak), 50 V output voltage rating, integrated suppression diodes for inductive loads, and availability in 16‑pin DIP and narrow‑body SO packages. The datasheet details absolute maximum ratings, electrical characteristics, pin assignments, and test circuits for design reference.
| Output current per driver | 500 mA (600 mA peak) |
|---|---|
| Output voltage rating | 50 V |
| Input voltage (ULN2002A/D etc.) | 30 V |
| Continuous collector current | 500 mA |
| Continuous base current | 25 mA |
| Operating ambient temperature range | -20 °C to 85 °C |
| Thermal resistance (junction‑ambient) DIP‑16 | 70 °C/W |
| Thermal resistance (junction‑ambient) SO‑16 | 120 °C/W |
Each driver can source up to 500 mA continuously, with a peak capability of 600 mA.
The devices are offered in a 16‑pin DIP package and a narrow‑body 16‑pin SO (surface‑mount) package.
Yes, each array includes integrated suppression diodes to protect against inductive load spikes.
The inputs are compatible with TTL, CMOS, PMOS and DTL logic families.