BD8149MUV-E2

Overview

The BD8149MUV-E2 is a specialized power management IC designed for gamma voltage generation in TFT-LCD panels. It integrates a high-precision 10-bit DAC, a 12-channel buffer amplifier, and an EEPROM auto-read function within a single chip. The device operates on a serial I²C interface with support for both standard and fast modes. It accepts an input voltage range of 2.1 V to 18 V and delivers an output current of 50 mA. The component functions within a temperature range of -25°C to +85°C and is housed in a VQFN-EP-32 package measuring 5.0x5.0 mm.

Feature Summary

• Integrates a 10-bit DAC and 12-channel buffer amplifier for precise gamma voltage control
• Supports I²C interface with selectable standard and fast mode clock frequencies
• Includes EEPROM auto-read functionality to simplify system initialization
• Features built-in protection circuits including thermal shutdown and under-voltage lockout

Applications

• TFT-LCD Panel driver systems
• Gamma voltage reference generation
• Display controller power management

Procurement Notes

Verify the exact suffix E2 against the manufacturer's latest datasheet to confirm RoHS compliance and specific tape-and-reel packaging details. Confirm that the VQFN-EP-32 package dimensions match your PCB footprint requirements. Ensure the I²C address configuration aligns with your system bus design. Check for any regional distribution restrictions or end-of-life notices prior to finalizing procurement plans.

Selection Notes

Select this component when a single-chip solution for gamma voltage generation is required to minimize external component count. It is suitable for designs needing high precision via the integrated 10-bit DAC without requiring external resistor ladders. Consider the 12-channel buffer capacity to ensure it meets the specific channel requirements of the target LCD panel. Verify that the operating temperature range covers the intended application environment.

Part Context

This part belongs to ROHM Semiconductor's specialized PMIC family focused on display drivers. It complements other gamma correction ICs like the BD8143MUV by offering integrated DAC capabilities. The series targets mid-range TFT-LCD applications where space efficiency and signal integrity are critical. It serves as a dedicated voltage reference source for liquid crystal driving waveforms.

Replacement Considerations

The BD8149MUV is listed as an alias for this part number. No direct cross-model substitutes are confirmed in the provided documentation. If replacement is necessary, verify pin compatibility and electrical specifications with similar ROHM gamma voltage ICs such as the BD8143MUV, ensuring functional equivalence.