BD81842MUV-ME2

Power Management - Specialized Overview

The BD81842MUV-ME2 is an automotive-grade panel power management IC from ROHM Semiconductor, designed for in-vehicle display systems. It operates within a supply voltage range of 2 V to 5.5 V and delivers a maximum output current of 200 mA. The device supports adjustable output voltages between 6 V and 18 V, with a maximum output capability of 18 V. It functions at a switching frequency of 2.1 MHz and maintains a typical operating supply current of 1.2 mA. Certified under AEC-Q100 standards, it ensures reliability across an extended temperature range from -40°C to +105°C.

Power Management - Specialized Feature Summary

• Integrated buck-boost DC/DC controller optimized for stable operation during wide input voltage fluctuations common in automotive environments.
• Built-in protection mechanisms including under-voltage lockout, over-current protection, and short-circuit protection to ensure system safety.
• Supports PWM dimming control for precise backlight brightness adjustment in liquid crystal displays.

Power Management - Specialized Applications

• Car navigation system displays
• Instrument cluster panels
• In-vehicle center panel monitors

Power Management - Specialized Procurement Notes

Verify the specific suffix ME2 against the manufacturer's latest datasheet to confirm package type and RoHS compliance status. Ensure the ordering part number matches the required automotive qualification level. Cross-reference the AEC-Q100 certification details with official documentation before finalizing procurement specifications.

Power Management - Specialized Selection Notes

Select this component for applications requiring a compact solution for small to middle-sized LCD backlights. The 2.1 MHz switching frequency allows for smaller external passive components compared to lower-frequency alternatives. Verify that the 200 mA output current meets the total LED load requirements of the target display module.

Power Management - Specialized Part Context

This part belongs to ROHM's specialized PMIC family tailored for automotive infotainment and instrumentation. It complements other drivers like the BD81A series by focusing on integrated power management rather than pure LED driving, offering a consolidated solution for panel power needs.

Power Management - Specialized Replacement Considerations

Check for the BD8184MUV-E2 as a potential alternative, though note its limited availability status. Verify pin compatibility and electrical parameter overlaps before substitution.