A8513KLYTR-1-T

LED Driver IC Overview

The A8513KLYTR-1-T is a single-output white LED driver for LCD backlighting, manufactured by Allegro MicroSystems. It integrates a current-mode boost converter with an internal power switch and one current sink. The device operates from a single power supply ranging from 4.5 V to 40 V, accommodating automotive start/stop, cold crank, and load dump requirements. It features a 2 MHz switching frequency to operate above the AM radio band and supports Boost and SEPIC topologies. The output current is rated at 150 mA with adjustable output voltage. It is housed in an MSOP-10 package and functions within a temperature range of -40°C to +125°C.

LED Driver IC Feature Summary

• Integrates a current-mode boost converter with an internal power switch and a dedicated current sink for single-output LED driving.
• Operates over a wide input voltage range of 4.5 V to 40 V to support automotive electrical transients.
• Utilizes a 2 MHz switching frequency to ensure operation above the AM radio band.

LED Driver IC Applications

• LCD backlighting for automotive displays
• White LED (WLED) driver circuits

LED Driver IC Procurement Notes

Verify the specific suffix '1' against official Allegro documentation to confirm pinout or functional variations compared to standard variants like A8513KLYTR-T. Ensure the MSOP-10 package matches design constraints. Confirm RoHS compliance status through the manufacturer's datasheet before finalizing procurement specifications.

LED Driver IC Selection Notes

Select this component for applications requiring a single-channel LED driver with high input voltage tolerance up to 40 V. The integrated boost converter and internal switch simplify design complexity. Consider the 2 MHz frequency for EMI management relative to AM radio bands. Verify thermal performance within the -40°C to +125°C operating range for the target environment.

LED Driver IC Part Context

This part belongs to the A8513 series of LED lighting drivers from Allegro MicroSystems. These devices are designed for high-efficiency fault-tolerant LED driving in automotive environments. The series typically includes variants with different packaging or suffixes to meet specific board layout or functional requirements while maintaining core driver capabilities.

LED Driver IC Replacement Considerations

Consult official Allegro substitution guides for verified equivalents. Generic cross-references may not match the specific electrical characteristics or pin configuration of the A8513KLYTR-1-T variant.