BD18364EFV-ME2

Overview

The BD18364EFV-ME2 is an automotive-grade buck-boost LED driver IC featuring eight independent output channels with integrated bypass switches. It operates within a supply voltage range of 5.5 V to 45 V, delivering up to 800 mA total output current and 60 V maximum output voltage at a switching frequency of 550 kHz. The device supports DC and PWM dimming with 1024 DC steps and 256 PWM steps. Packaged in HTSSOP-B30, it functions reliably between -40°C and +125°C.

Feature Summary

• Integrates eight-channel bypass switches controllable via microcontroller communication for sequential winker and animation lamp circuits.
• Employs buck-boost topology to maintain stable LED drive performance across varying input voltage conditions.
• Includes built-in current limit circuits to prevent overcurrent during bypass switch control operations.

Applications

• Automotive sequential turn signal lighting systems
• Animation lamp light circuits for vehicle exteriors
• LED matrix lighting applications requiring individual channel control

Procurement Notes

Verify the specific ordering suffix matches the required package configuration and tape/reel specifications. Confirm that the component meets AEC-Q100 Grade 1 qualification standards for automotive functional safety support. Ensure compatibility with the target system's thermal management requirements given the operating temperature range.

Selection Notes

Select this component when designing automotive exterior lighting that requires complex dynamic patterns like sequential indicators. The integrated bypass switches eliminate external components for channel isolation. Consider the 800 mA total current capacity against the aggregate load of all active LED channels simultaneously.

Part Context

This part belongs to ROHM's specialized automotive LED driver series designed for advanced lighting functionalities. It complements other models in the family by providing multi-channel control with integrated power switching capabilities tailored for high-reliability vehicular environments.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify cross-reference availability through official manufacturer channels before implementation.