BD9394FP-E2

Overview

The BD9394FP-E2 is a four-channel white LED driver IC designed for large LCD panels, utilizing a boost DC/DC converter topology. It operates within an input voltage range of 9 V to 35 V and delivers a maximum total output current of 150 mA across its four channels. The device features a switching frequency of 150 kHz and supports adjustable feedback voltage for precise current setting. Packaged in an HSOP-20 format, it functions reliably between -40°C and +85°C, incorporating built-in protections such as overvoltage protection and individual LED open/short circuit detection.

Feature Summary

• Four-channel constant current driver with integrated DC/DC boost converter
• Individual detection and automatic OFF for open and short circuits
• Adjustable analog linear dimming capability via the ADIM pin
• Built-in overvoltage protection and Vout discharge circuit for shutdown

Applications

• White LED backlighting for large LCD panels
• High-reliability display systems requiring individual channel monitoring
• Industrial control panel displays

Procurement Notes

Verify component status before procurement as this part is marked Not Recommended for New Designs (NRND). Confirm availability through authorized distributors for existing production support only. Ensure compatibility with HSOP-20 footprint requirements. Check RoHS compliance documentation for specific regional regulations. Validate supply chain stability due to potential end-of-life constraints.

Selection Notes

Select this component for applications requiring four independent LED channels from a single boost converter. Suitable for designs needing ±2% current accuracy and low heat dissipation via adjustable feedback voltage. Consider thermal management capabilities of the HSOP-20 package. Verify input voltage ranges match system power supplies between 9 V and 35 V.

Part Context

This IC belongs to ROHM's series of LED lighting drivers specifically engineered for high-performance display backlights. It integrates power switching and control logic to simplify board design. The HSOP-20 package offers improved heat radiation efficiency compared to standard SOP packages, supporting higher power densities in compact display modules.

Replacement Considerations

BD93942F-GE2 is a related variant in the same family, though it utilizes a different SOP16 package. Verify pin compatibility and thermal performance when substituting. No direct equivalent with identical packaging is confirmed in public data.