A80602KESJSR

Overview

The A80602KESJSR is a high-power LED driver IC from Allegro MicroSystems, designed for wide input voltage ranges. It supports Boost and SEPIC topologies with six output channels capable of delivering up to 140 mA per channel. The device operates within an input voltage range of 4.5 V to 40 V and features a switching frequency adjustable between 260 kHz and 2.3 MHz. It includes integrated analog and PWM dimming capabilities, housed in a 24-QFN package, and is qualified to AEC-Q100 standards for automotive applications.

Feature Summary

• Integrates pre-emptive boost control to achieve ultra-high dimming ratios and low output ripple
• Supports both analog and pulse-width modulation (PWM) dimming methods for flexible brightness control
• Features a wide input voltage range suitable for diverse power supply architectures
• Includes internal error amplifiers and protection mechanisms for stable operation

Applications

• Automotive exterior lighting systems
• LED backlighting for displays
• General solid-state lighting fixtures

Procurement Notes

Verify the specific suffix KESJSR against the manufacturer's latest datasheet to confirm pinout and thermal pad configuration. Ensure compatibility with the target PCB footprint, specifically the 24-WFQFN package dimensions. Confirm that the application circuit meets the required input voltage and current specifications before finalizing procurement orders.

Selection Notes

Select this component when designing circuits requiring multiple LED strings driven from a variable or wide-range voltage source. The SEPIC topology allows operation above or below the input voltage, making it suitable for battery-powered or automotive environments where voltage fluctuates significantly. Consider the 140 mA output limit and six-channel capacity when sizing the LED array.

Part Context

This part belongs to the A80602 series of high-power LED drivers. It shares functional similarities with other members like the A80601 and A80603 but differs in output count and specific electrical characteristics. The series is engineered for automotive-grade reliability, offering robust performance in harsh electromagnetic and thermal environments common in vehicle electronics.

Replacement Considerations

Direct substitutes include A80602KESJSR-1. Verify pin-to-pin compatibility and electrical parameter alignment with the original design requirements before swapping components.