BD83A14EFV-ME2

Overview

The BD83A14EFV-ME2 is an automotive-grade white LED driver IC designed for LCD backlight applications. It integrates a boost DC/DC controller with a built-in MOSFET and four independent current drivers. The device supports an input voltage range of 4.5 V to 48 V, delivering up to 150 mA per channel with a maximum output voltage of 50 V. Operating frequencies span from 200 kHz to 2.42 MHz. It features PWM dimming capabilities and functions within a temperature range of -40°C to +125°C.

Feature Summary

• Integrates a current-mode boost DC/DC converter with an internal switching MOSFET for efficient power management.
• Provides four independent constant current channels optimized for driving high-brightness white LEDs in automotive displays.
• Supports wide-range PWM dimming control combined with analog dimming functions for precise brightness adjustment.

Applications

• Automotive LCD panel backlighting systems
• High-brightness LED drive circuits for medium-sized displays
• Advanced Driver Assistance Systems (ADAS) visual interfaces

Procurement Notes

Verify the specific suffix ME2 against the manufacturer's official documentation to confirm package type and tape/reel specifications. Ensure the component meets AEC-Q100 Grade 1 requirements for your target automotive environment. Cross-reference the datasheet revision date to validate functional safety support claims and protection feature availability before finalizing procurement.

Selection Notes

Select this component when designing automotive display backlights requiring high input voltage tolerance up to 48 V and integrated boost topology. It is suitable for applications needing four-channel current regulation with spread spectrum functionality to reduce electromagnetic interference. Consider its thermal performance and HTSSOP-B-24 package constraints for board layout optimization.

Part Context

This part belongs to ROHM's automotive white LED driver series, specifically engineered for LCD backlighting. It addresses industry demands for higher efficiency and reduced power consumption in increasingly larger vehicle displays. The design incorporates protection mechanisms to ensure reliability and prevent flickering in critical safety-related visual systems.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Verify compatibility with existing boost inductor values and control loop stability if considering alternative devices from other manufacturers.

FAQ

Does the BD83A14EFV-ME2 include an internal switching FET?

Yes, the device integrates a MOSFET for the boost DC/DC controller, eliminating the need for an external switching element.

What is the maximum output voltage supported by this LED driver?

The LED pin maximum voltage is specified as 50 V, making it suitable for driving medium-sized LCD panels.