BU9795BKV-E2

Display Drivers Overview

The BU9795BKV-E2 is an LCD segment driver from the ROHM BU9795B series, designed for low duty LCD applications. It supports up to 140 segments and operates within a supply voltage range of 2.5 V to 5.5 V. The device features a 3-Wire interface and a maximum clock frequency of 300 kHz. Packaged in a VQFP-48 format with SMD/SMT installation style, it handles a power dissipation of 600 mW. The component functions reliably across a temperature range of -40°C to +85°C, with a maximum supply current of 40 uA.

Display Drivers Feature Summary

• Supports low duty LCD segment driving configurations
• Utilizes a 3-Wire serial interface for data transmission
• Operates within a wide supply voltage range

Display Drivers Applications

• Low duty LCD segment displays
• Consumer electronics requiring compact LCD drivers
• Industrial control panels with segmented LCD interfaces

Display Drivers Procurement Notes

Verify the specific ordering suffix and package variant against the official ROHM Semiconductor datasheet before procurement. Confirm that the VQFP-48 package matches the target PCB footprint requirements. Ensure the operating temperature range aligns with the intended application environment. Cross-reference the RoHS compliance status with current regulatory standards. Validate the 3-Wire interface compatibility with the host microcontroller system.

Display Drivers Selection Notes

Select this component when a dedicated driver for up to 140 LCD segments is required. The 3-Wire interface offers a balance between pin count and data throughput for simple display systems. Consider the VQFP-48 package size relative to available board space. Evaluate the 300 kHz clock speed against the desired refresh rate needs. Ensure the 2.5 V to 5.5 V supply range matches the system power architecture.

Display Drivers Part Context

This part belongs to the BU9795B family of LCD drivers from ROHM Semiconductor. It is specifically engineered for segment-based liquid crystal displays. The series provides integrated solutions for managing multiple segments efficiently. The BU9795BKV-E2 variant distinguishes itself through its specific package type and interface configuration within this product line.

Display Drivers Replacement Considerations

BU9795AFV-E2: Offers 108 segments in SSOP-B40 package with similar 3-Wire interface. BU9799KV-E2: Provides 200 segments but uses I2C interface instead of 3-Wire. Verify segment count and interface compatibility when substituting.