BU91796MUF-ME2

Overview

The BU91796MUF-ME2 is an LCD segment driver manufactured by ROHM Semiconductor, designed for line/frame driving applications. It supports up to 80 segments with a maximum clock frequency of 300 kHz. The device operates within a supply voltage range of 2.5 V to 6 V and features a low maximum power consumption of 30 uA. It is housed in a VQFN-32 package (VQFN32FV5050) suitable for surface mount technology. The component meets AEC-Q101 qualification standards and functions reliably across an operating temperature range from -40°C to +105°C.

Feature Summary

• Supports line/frame driving waveforms for LCD displays
• Includes built-in display RAM to reduce microcontroller load
• Qualified for automotive applications under AEC-Q101 standards
• Operates with a two-wire serial interface

Applications

• Automotive LCD segment displays
• Instrument clusters requiring high reliability
• Low-power display control systems

Procurement Notes

Verify the current lifecycle status before procurement, as this part is marked as NRND (Not Recommended for New Designs). Confirm that the specific VQFN-32 package and AEC-Q101 qualification align with your design requirements. Ensure compatibility with existing 2-wire serial interfaces and check for any recommended replacement components due to the end-of-life designation.

Selection Notes

Select this component when designing for automotive environments requiring robust LCD driving capabilities within a compact VQFN-32 footprint. It is suitable for applications needing low power consumption and high-temperature operation up to 105°C. Consider the NRND status carefully; if long-term production stability is critical, evaluate alternative drivers from the same family or newer generations that offer similar segment counts and interface protocols.

Part Context

This component belongs to ROHM's series of low-duty cycle LCD segment drivers tailored for automotive use. It shares functional similarities with other models like the BU91796BMUF-ME2 but differs in package type and specific qualification standards. The BU91796MUF-ME2 utilizes a standard VQFN-32 package, whereas variants may offer wettable flank options or different interface configurations such as I2C.

Replacement Considerations

Check for direct substitutes within the BU91796 series, such as the BU91796BMUF-ME2, ensuring package and interface compatibility. Verify if newer ROHM LCD drivers meet the required 80-segment capacity and AEC-Q101 standards.