DLP4500NIRFQD

Specialized ICS Overview

The DLP4500NIRFQD is a digital micromirror device (DMD) featuring a 0.45-inch diagonal micromirror array with 912 × 1140 resolution, exceeding one million mirrors. It utilizes a diamond-array orientation to support side illumination for efficient optical designs. The device operates within the near-infrared spectrum, offering 96% window transmission efficiency from 700 to 2000 nm and 90% from 2000 to 2500 nm. Packaged in a 98-lead LCCC format measuring 9.1 mm by 20.7 mm, it includes an enhanced thermal interface suitable for portable instruments.

Specialized ICS Feature Summary

• 0.45-inch diagonal micromirror array with 912 × 1140 resolution and 7.6-µm pitch
• High NIR light steering efficiency with 96% transmission at 700–2000 nm
• Diamond-array orientation supporting simplified side illumination optics
• Compatible with DLPC350 controller for binary pattern rates up to 4 kHz

Specialized ICS Applications

• Spectrometers and chemical analysis process analyzers
• Compressive sensing single-pixel NIR cameras
• 3-D biometrics systems
• Machine vision applications
• Infrared scene projection

Specialized ICS Procurement Notes

Verify component authenticity through authorized Texas Instruments channels or certified distributors. Confirm package integrity as the FQD variant requires specific handling due to its ceramic construction. Ensure compliance with ESD protection standards during storage and installation to maintain device reliability.

Specialized ICS Selection Notes

Select the FQD package over the FQE variant when enhanced thermal dissipation is required for high-power NIR illumination. Ensure the system design supports the necessary power supplies including VCC, VREF, VOFFSET, VBIAS, and VRESET. Verify that the host controller can interface with the LVCMOS DDR data bus and serial control lines.

Specialized ICS Part Context

This component belongs to the DLP4500 family of digital micromirror devices designed for near-infrared applications. It serves as a spatial light modulator capable of replacing expensive InGaAs array detectors in portable solutions. The device integrates micromirror driver circuitry and is optimized for compact form factors in scientific and industrial instrumentation.

Specialized ICS Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Designers should evaluate the DLP4500AFQD for visible spectrum applications or consult Texas Instruments for current production alternatives if discontinuation is a concern.

Specialized ICS FAQ

What is the maximum operational case temperature for the DLP4500NIR?

The maximum operational case temperature is 90°C, though long-term performance may require derating based on the micromirror landed duty cycle.

How does the diamond-array orientation benefit optical design?

The diamond-array orientation supports side illumination, which simplifies the optical design and improves efficiency compared to traditional arrays.

What is the typical window transmission efficiency for this device?

The window transmission efficiency is nominally 96% for wavelengths between 700 nm and 2000 nm, and 90% for wavelengths between 2000 nm and 2500 nm.