A80606KEVJSR-1

Overview

The A80606KEVJSR-1 is a multi-output LED driver IC designed for automotive applications, featuring an integrated current-mode boost/SEPIC controller with gate drivers for external N-MOSFETs. It provides six independent current sink channels, each capable of driving up to 180 mA, with the ability to parallel outputs for higher currents. The device operates on a single supply voltage ranging from 4.5 V to 40 V, supporting low-voltage operation down to 4 V after startup. Key electrical parameters include a switching frequency range of 260 kHz to 2.3 MHz and a maximum output voltage of 40 V.

Feature Summary

• Integrates a current-mode boost/SEPIC converter controller with dedicated gate drivers for external power MOSFETs.
• Provides six independent high-current sinks with patented control schemes for superior PWM dimming ratios.
• Supports wide input voltage ranges to withstand automotive load dump and cold start conditions.
• Includes built-in protection features such as thermal shutdown and dynamic overvoltage protection.

Applications

• Automotive exterior lighting including Daytime Running Lights (DRL), position lights, and rear combination lamps.
• Head-up Display (HUD) illumination systems.
• Medium-size LCD backlighting for automotive infotainment and instrument clusters.
• High-power LED arrays in automotive entertainment and dashboard lighting.

Procurement Notes

Verify the specific suffix 'JSR-1' against the manufacturer's latest datasheet to confirm pinout compatibility and internal switch configuration differences compared to standard variants. Ensure the design supports external N-MOSFETs as this model lacks internal power switches. Confirm moisture sensitivity level and reflow soldering profile requirements for the QFN package during assembly planning.

Selection Notes

Select this component when designing high-power LED systems requiring external power stage flexibility and multiple independent current channels. It is suitable for applications demanding high brightness and precise dimming control in automotive environments. Consider the need for external MOSFETs and associated gate drive circuitry, which offers efficiency benefits but increases bill of materials complexity compared to fully integrated solutions.

Part Context

This part belongs to the A80606 series of multi-output LED drivers from Allegro MicroSystems. It is engineered specifically for automotive-grade reliability, meeting AEC-Q100 standards. The series addresses the need for robust, high-current LED driving in harsh thermal and electrical environments typical of modern vehicle architectures.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Designers should consult Allegro MicroSystems for direct replacements or cross-reference options based on specific current and topology requirements.