BD82A26MUF-ME2

Overview

The BD82A26MUF-ME2 is a Nano Cap™ integrated white LED driver IC designed for automotive LCD backlight applications. It features a boost topology with six independent current drivers, each capable of delivering up to 150 mA, totaling 900 mA maximum output current. The device operates within an input voltage range of 3 V to 48 V and supports a maximum output voltage of 50 V. Switching frequencies are adjustable from 200 kHz to 2.42 MHz, with external synchronization capabilities. It offers PWM dimming ratios up to 20,000:1 at 100 Hz and supports analog plus PWM mix dimming. The IC is housed in a VQFN-32 package and is qualified under AEC-Q100 Grade 1 standards.

Feature Summary

• Integrates ROHM's proprietary Nano Cap™ technology, enabling stable control with minimal output capacitance in the nanofarad range.
• Provides six-channel constant current drive capability optimized for high-brightness LED arrays in large LCD panels.
• Supports flexible dimming methods including high-ratio PWM and analog/PWM mixed modes to prevent flicker.

Applications

• Automotive LCD backlight systems for instrument clusters
• In-Vehicle Infotainment (IVI) display backlights
• Large-size automotive monitor backlighting

Procurement Notes

Verify the complete part number including the suffix ME2 to ensure correct packaging and RoHS compliance status. Confirm AEC-Q100 Grade 1 qualification requirements match the specific vehicle application safety standards. Check functional safety support documentation if required for system-level safety analysis. Ensure input voltage ranges align with the target automotive power supply architecture.

Selection Notes

Select this component for designs requiring high channel count and high total current in a compact form factor. The Nano Cap™ feature reduces external component size compared to traditional boost converters. Consider the 50 V output limit when determining the series LED string configuration. Verify thermal management needs given the 125 C maximum operating temperature rating.

Part Context

This IC belongs to ROHM's automotive-grade LED driver family, specifically targeting the growing demand for larger and brighter displays in advanced driver assistance systems. It addresses efficiency and reliability challenges associated with traditional LED drivers by integrating protection functions and minimizing flicker risks during dimming operations.

Replacement Considerations

The BD82A26MUF-M is listed as an alias or predecessor variant. Verify pin compatibility and electrical parameter equivalence before substitution. No other direct cross-model replacements are documented in the provided data.