BD83A04EFV-ME2

Overview

The BD83A04EFV-ME2 is a white LED driver IC for automotive LCD backlights, featuring four integrated current drivers and a built-in MOSFET for boost DC/DC control. It supports an input voltage range of 4.5 V to 48 V with a maximum output voltage of 50 V. The device offers per-channel drive currents up to 150 mA and total output currents up to 600 mA. Operating frequencies range from 200 kHz to 2.42 MHz, supporting PWM dimming ratios up to 20,000:1 at 100 Hz. It functions within temperatures from -40°C to +125°C in a 24-pin HTSSOP-B package.

Feature Summary

• Integrates four independent high-current LED drivers with a built-in boost converter MOSFET for efficient power management.
• Supports wide-range PWM dimming up to 20,000:1 ratio combined with analog dimming capabilities for precise brightness control.
• Includes comprehensive protection features such as over-voltage, over-temperature, over-current, and LED open/short circuit detection.
• Features spread spectrum function and external synchronization to minimize electromagnetic interference in automotive environments.

Applications

• Automotive LCD backlight driving for instrument clusters
• Infotainment system display illumination
• ADAS monitor backlighting applications

Procurement Notes

Verify the specific suffix ME2 against official Rohm documentation to confirm package type and tape/reel specifications. Confirm AEC-Q100 Grade 1 qualification status for your target automotive application tier. Check functional safety support classification if required for ISO 26262 compliance analysis. Ensure compatibility with your system's PWM frequency requirements before finalizing procurement.

Selection Notes

Select this component when designing automotive displays requiring high brightness and uniformity across multiple LEDs. The integrated boost controller simplifies design by reducing external component count compared to discrete solutions. Consider the 150 mA per-channel limit when sizing LED arrays. The wide input voltage range accommodates various automotive battery conditions without additional pre-regulation stages.

Part Context

This part belongs to ROHM's BD83A series of automotive-grade LED drivers designed specifically for increasing display sizes in modern vehicles. It addresses efficiency and flicker reduction challenges associated with traditional drivers. The series supports functional safety analysis, aligning with trends toward larger, higher-reliability cockpit displays and advanced driver assistance systems.

Replacement Considerations

BD83A14EFV-ME2 is a confirmed substitute within the same family offering identical electrical characteristics and pinout compatibility. Verify that any alternative replacement maintains the same HTSSOP-B24 package dimensions and thermal performance requirements for your PCB layout.