UDQ2559LBTR

Power Distribution Switches, Load Drivers Overview

The UDQ2559LBTR is a quad power driver integrated circuit manufactured by Allegro MicroSystems, housed in a 16-SOIC package. It features four low-side outputs capable of delivering up to 700mA each, with a maximum load voltage rating of 60V. The device operates on a supply voltage range of 4.75V to 5.25V and utilizes non-inverting open/switch interface logic. Key protection mechanisms include fixed current limiting and overtemperature shutdown. The component is designed for surface mount installation and supports an operating temperature range from -40°C to 85°C.

Power Distribution Switches, Load Drivers Feature Summary

• Integrates four independent low-side power switches with high-current drive capability
• Incorporates built-in fault protection including fixed current limiting and thermal shutdown
• Features AND logic gate functionality combined with high-current output stages

Power Distribution Switches, Load Drivers Applications

• Relay driving circuits
• Solenoid actuation systems
• General-purpose load switching applications

Power Distribution Switches, Load Drivers Procurement Notes

Verify component status carefully as the UDQ2559LBTR is listed as obsolete. Confirm availability through authorized distributors or secondary market suppliers. Ensure that the 16-SOIC package dimensions and pinout match the target PCB footprint. Check RoHS compliance status, as indicated data suggests it may not meet current environmental standards. Validate supplier authenticity to avoid counterfeit parts given the end-of-life status.

Power Distribution Switches, Load Drivers Selection Notes

Select this component when a quad low-side driver with moderate current capacity is required. Consider the 60V voltage limit and 700mA per channel constraint against load requirements. Evaluate the need for integrated protection features like overtemperature shutdown. Compare against newer Allegro alternatives if long-term supply stability is critical. Ensure the 5V logic interface compatibility matches the control system design.

Power Distribution Switches, Load Drivers Part Context

The UDQ2559LBTR belongs to Allegro's 2559 series of quad power drivers, which combine logic gates with high-current outputs. This series is designed for applications requiring multiple switched loads controlled by simple logic signals. The LB suffix typically denotes specific package or thermal characteristics within the product family. These drivers are commonly used in industrial and automotive contexts for managing relays and solenoids.

Power Distribution Switches, Load Drivers Replacement Considerations

Public confirmed substitute part numbers include UDK2559EB and UDN2559EB. Verify pinout compatibility and electrical specifications before substitution. Note that the UDK2559EB is also an obsolete variant within the same family.