BU91600FV-ME2

Overview

The BU91600FV-ME2 is a low duty LCD segment driver IC manufactured by ROHM Semiconductor, designed for automotive applications. It supports up to 116 segments with a maximum clock frequency of 1 MHz. The device operates on a supply voltage range of 2.7 V to 6 V and features a 3-wire serial interface with key output capabilities. Packaged in a 40-pin SSOP-B format, it meets AEC-Q100 Grade 2 standards for automotive reliability. The component functions within an operating temperature range of -40°C to +105°C and includes built-in EVR functionality for LCD contrast adjustment.

Feature Summary

• Supports line/frame driving waveforms for high-precision VA LCDs
• Integrates keyboard scanning functionality to reduce PCB wiring and MCU size
• Compatible with TTL level inputs for direct connection to various MCU power supplies

Applications

• Automotive instrument cluster displays
• Car navigation system screens
• In-car infotainment unit interfaces

Procurement Notes

Verify the specific suffix ME2 against the official ROHM datasheet to confirm package dimensions and pinout compatibility. Ensure the design accounts for the 40-SSOP-B physical constraints and thermal requirements. Confirm that the 3-wire interface timing matches the host microcontroller specifications. Check for any RoHS compliance documentation updates relevant to the manufacturing date code.

Selection Notes

Select this component when designing automotive displays requiring support for up to 116 segments with a 3-wire interface. It is suitable for applications needing integrated key scanning and EVR contrast control without external components. Consider the 40-SSOP-B package size and the -40°C to +105°C operating temperature range for environmental fit. Verify that the 2.7 V to 6 V supply voltage aligns with the system power architecture.

Part Context

This part belongs to the BU91600 series of low duty LCD segment drivers from ROHM. The series is characterized by its suitability for automotive environments, adhering to AEC-Q100 standards. The BU91600FV-ME2 variant specifically utilizes the SSOP-B40 package, distinguishing it from other variants like the TSSOP-C48V or VQFP packages found in related models such as the BU91600FUV-M or BU91520KV.

Replacement Considerations

Check for BU91600FV-M as a potential base model equivalent, ensuring the ME2 suffix does not introduce functional differences. Verify pin-to-pin compatibility with existing designs before substitution.