BU91600FUV-ME2

Overview

The BU91600FUV-ME2 is an automotive-grade LCD segment driver IC designed for low duty applications. It supports up to 148 segments with 1/4, 1/3, 1/2, or static bias configurations. The device operates on a 2.7V to 6V supply and features a 3-wire serial interface with key output. It includes 16 general-purpose outputs and 6 PWM outputs for backlight control. Integrated EVR functionality allows for LCD contrast adjustment. The component meets AEC-Q100 Grade 2 standards and functions within a temperature range of -40°C to +105°C in a 48-TSSOP-CV package.

Feature Summary

• Supports high-precision VA liquid crystal displays with high voltage driving capabilities.
• Integrates keyboard scanning for up to 20 keys to reduce PCB wiring complexity.
• Features built-in EVR for direct LCD contrast control without external components.
• Compatible with TTL level inputs for direct connection to various MCU power supplies.

Applications

• Automotive instrument cluster displays
• Car navigation system screens
• Multi-information display units
• Dashboard control panels

Procurement Notes

Verify the complete part number including the suffix ME2 to ensure correct packaging and automotive qualification. Confirm that the design supports the required 3-wire serial protocol and key input lines. Check that the target application voltage falls within the 2.7V to 6V operating range. Ensure the PCB layout accommodates the 48-TSSOP-CV package dimensions and thermal requirements for automotive environments.

Selection Notes

Select this driver when designing automotive displays requiring up to 148 segments with low duty cycles. It is suitable for applications needing integrated key scanning and PWM backlight control. Choose this component if AEC-Q100 Grade 2 qualification is mandatory. Consider its TTL compatibility for systems using different logic voltage levels. Evaluate the 48-pin TSSOP package size against available board space constraints.

Part Context

This component belongs to ROHM's BU91600 series of low-duty LCD segment drivers specifically engineered for automotive use. The series is characterized by support for VA-type liquid crystals and robust functional safety analysis capabilities. It serves as a specialized interface between microcontrollers and complex LCD panels in vehicle electronics, replacing discrete driver solutions.

Replacement Considerations

The BU91600FUV-M is listed as an alias for this part number. Verify pinout and electrical specifications before substituting with other ROHM LCD drivers such as the BU91796BMUF-ME2, noting differences in segment count and interface type.