BU97520AKV-ME2

Display Drivers Overview

The BU97520AKV-ME2 is an automotive-grade LCD segment driver manufactured by ROHM Semiconductor. It supports up to 276 segments with selectable 1/4 or 1/3 duty ratios and 1/3 or 1/2 bias settings. The device operates within a voltage range of 2.7 V to 6.0 V and features a 3-wire serial interface combined with key output functionality. It includes a built-in keyboard scanner for up to 30 keys and six general-purpose outputs. The IC is housed in an 80-pin VQFP package, rated for operation between -40°C and +85°C, and complies with AEC-Q100 standards.

Display Drivers Feature Summary

• Supports high-contrast VA LCD driving with adjustable duty and bias configurations
• Integrates a 30-key scan function to reduce PCB wiring complexity
• Provides six independent PWM-capable outputs for LED backlight control
• Features TTL-compatible input levels for direct MCU interfacing

Display Drivers Applications

• Automotive instrument cluster displays
• Vehicle infotainment system interfaces
• Dashboard indicator panels
• General-purpose automotive LCD modules

Display Drivers Procurement Notes

Verify the specific suffix ME2 corresponds to the required tape-and-reel packaging configuration. Confirm that the 80-VQFP footprint matches the target PCB design constraints. Ensure the selected component meets the functional safety support requirements if applicable to the final assembly. Cross-reference the datasheet revision against the latest manufacturing specifications to guarantee compatibility with current supply chain standards.

Display Drivers Selection Notes

Select this model when designing systems requiring extensive segment counts up to 276. It is suitable for applications needing integrated key scanning to minimize external components. Choose this driver for designs operating on single-supply voltages between 2.7V and 6V. Consider this part for automotive environments requiring robust temperature stability and AEC-Q100 certification.

Display Drivers Part Context

This component belongs to the BU97520 series of low-duty LCD segment drivers designed specifically for automotive applications. It is part of ROHM's portfolio of display controllers that emphasize reduced system cost through integrated peripheral functions. The series supports various duty cycles to accommodate different display panel types commonly used in vehicle interiors.

Display Drivers Replacement Considerations

BU91520KV-ME2 offers similar segment capacity but differs in operating temperature range and specific interface nuances.