BD8139AEFV-E2

Overview

The BD8139AEFV-E2 is a gamma voltage correction IC manufactured by ROHM Semiconductor, designed for TFT-LCD panels. It operates within an input voltage range of 2.3 V to 18 V and delivers an output current of 40 mA. The device features a 10-bit DAC with 10 channels and includes a built-in buffer amplifier for gamma outputs. It utilizes a 2-wire serial interface and supports auto data read functionality. The component is housed in an HTSSOP-40 package and functions reliably across a temperature range of -30°C to +85°C.

Feature Summary

• Integrates a 10-bit digital-to-analog converter with dedicated buffer amplifiers for gamma voltage generation.
• Supports simplified system design through a 2-wire serial interface and automatic data read capability.
• Includes thermal shutdown circuitry to protect the device during operation.

Applications

• TFT-LCD panel gamma correction
• Display driver power management systems

Procurement Notes

Verify the specific suffix E2 against the manufacturer's latest documentation to confirm pinout and electrical characteristics match your design requirements. Confirm RoHS compliance status directly from the official datasheet before integration. Check for any REACH SVHC declarations relevant to your region. Ensure the HTSSOP-40 package dimensions align with your PCB footprint specifications.

Selection Notes

Select this component when designing for TFT-LCD applications requiring integrated gamma correction without external DACs. The 2-wire serial interface reduces pin count compared to 3-line alternatives. Verify that the 2.3 V minimum input voltage suits your system's power rails. Consider the -30°C to +85°C operating range for environmental compatibility.

Part Context

This part belongs to ROHM's specialized PMIC family for display drivers. It serves as a single-chip solution for generating precise gamma voltages, reducing component count in LCD systems. The HTSSOP-40 package offers a compact form factor suitable for space-constrained mobile and portable display devices.

Replacement Considerations

BD8132FV is a related model featuring a 3-line serial interface and 18-channel DAC. Verify interface compatibility and channel count differences before substitution.