UDQ2559LBTR-T

Power Distribution Switches, Load Drivers Overview

The UDQ2559LBTR-T is a low-side power driver manufactured by Allegro MicroSystems, designed for driving bipolar loads such as relays and solenoids. It features four independent channels with a maximum output current of 700mA per channel. The device operates within a load voltage range up to 60V and requires a supply voltage between 4.75V and 5.25V. It utilizes non-inverting open/switch interfaces and is housed in a 16-PowerSOIC package. Key protection mechanisms include fixed over-current limiting and thermal shutdown for both the device and individual drivers.

Power Distribution Switches, Load Drivers Feature Summary

• Provides independent over-current protection for each driver channel
• Integrates thermal protection for the entire device and individual drivers
• Supports bipolar load configurations with low-side output topology

Power Distribution Switches, Load Drivers Applications

• Relay driver circuits
• Solenoid actuation systems
• Automotive load switching applications

Power Distribution Switches, Load Drivers Procurement Notes

This component is officially listed as obsolete or expired by the manufacturer. Verification of availability should focus on Last Time Buy status or existing stock from authorized distributors rather than standard production channels. Ensure compliance with RoHS3 specifications and check MSL level 3 handling requirements during procurement and storage.

Power Distribution Switches, Load Drivers Selection Notes

Select this part when bipolar drive capability is required for low-side switching applications. The 700mA per-channel rating suits moderate-power loads like small relays. Verify that the system environment stays within the -40°C to 85°C operating temperature range. The 1:1 input-to-output ratio simplifies control logic design compared to complex motor drivers.

Power Distribution Switches, Load Drivers Part Context

The UDQ2559 series belongs to Allegro's family of power management ICs focused on load driving. This specific variant uses a 16-lead SOIC package, distinguishing it from DIP or PLCC versions in the same functional family. It serves as a dedicated interface between low-voltage logic controllers and higher-voltage bipolar actuators.

Power Distribution Switches, Load Drivers Replacement Considerations

Public confirmed substitutes include UDK2559B-T (16-pin DIP) and UDK2559EBTR-T (28-lead PLCC). Note that these alternatives differ in package type and pin count, requiring PCB layout adjustments.