The ULN2065B, ULN2067B, ULN2069B, ULN2071B, ULN2075B and ULN2077B are quad Darlington switches designed to interface logic to high-current, high-voltage loads. Each device contains four NPN Darlington switches delivering up to 1.5 A, with a specified minimum breakdown of 80 V and a sustaining voltage of 50 V.
The ULN2065B, ULN2067B, ULN2069B and ULN2071B include integral suppression diodes for inductive loads and have common emitters. The ULN2075B and ULN2077B have isolated Darlington pinouts for emitter-follower configurations. The ULN2069B and ULN2071B include a predriver stage to reduce loading on control logic; the datasheet also gives ratings, electrical characteristics, test circuits and mounting instructions.
| Output Voltage | 80 V |
|---|---|
| Output Current | 1.75 A (absolute maximum) |
| Output Sustaining Voltage | 50 V |
| Power Dissipation at Tpins = 90 °C | 4.3 W |
| Operating Ambient Temperature Range | -20 to 85 °C |
| Storage Temperature | -55 to 150 °C |
| Input Voltage for ULN2075B–2077B | 60 V |
Each Darlington switch delivers up to 1.5 A.
The ULN2065B, ULN2067B, ULN2069B and ULN2071B include integral suppression diodes for inductive loads.
Pin temperature must not exceed 260 °C, and soldering must not take longer than 12 seconds.
The ULN2065B, ULN2069B and ULN2075B have inputs compatible with popular 5 V logic families.