BU91501KV-ME2

Overview

The BU91501KV-ME2 is an automotive-grade LCD segment driver IC manufactured by ROHM Semiconductor. It supports up to 204 segments with selectable 1/3 or 1/4 duty cycles. The device operates on a supply voltage range of 2.7 V to 6 V and features a 3-wire serial interface with key input capability. It includes integrated RAM for display data, a power-on reset circuit, and an internal oscillator, eliminating the need for external components. The IC is qualified under AEC-Q100 standards and functions within a temperature range of -40°C to +105°C.

Feature Summary

• Supports 1/3 or 1/4 duty cycle selection via serial control data
• Integrates RAM for display data storage and internal oscillator
• Includes key input function for up to 30 keys with scan only upon press
• Features integrated power-on reset circuit for reliable startup

Applications

• Automotive instrument cluster displays
• Vehicle information system interfaces
• Multi-function dashboard indicators

Procurement Notes

Verify component authenticity against official ROHM documentation. Confirm package integrity and moisture sensitivity handling requirements prior to assembly. Ensure compatibility with existing PCB footprint and thermal management specifications. Cross-reference ordering suffixes to confirm exact variant specifications.

Selection Notes

Select this component for applications requiring low-power LCD driving in automotive environments. It is suitable for designs needing integrated memory and minimal external components. Consider the VQFP-64 package constraints and operating temperature limits during layout planning.

Part Context

This part belongs to ROHM's automotive LCD segment driver family, designed for high reliability in vehicle electronics. It complements other drivers like the BU91510KV-M and BU91600FV-ME2, offering specific segment counts and interface options tailored for different display complexity levels in automotive dashboards.

Replacement Considerations

Check for direct substitutes such as BU91501KV-M if available. Verify pinout and electrical parameter compatibility before substitution.