DLP4621AFQXQ1

Specialized ICS Overview

The DLP4621AFQXQ1 is a 0.46-inch, 0.9-megapixel Digital Micromirror Device (DMD) designed for automotive exterior lighting applications. It features a 960 × 960 mirror array with a 7.6 μm pitch and ±12° tilt angle, supporting a 2:1 aspect ratio. The device operates within an array temperature range of -40°C to +105°C and utilizes bottom illumination for high efficiency. Key electrical parameters include a VDD supply voltage of 1.8 V (typical), a total power dissipation of 1045 mW, and a maximum low-speed interface clock frequency of 130 MHz. It communicates via a 600 MHz SubLVDS interface.

Specialized ICS Feature Summary

• Automotive-grade qualification with AEC-Q100 standards and operation from -40°C to +105°C.
• 0.9-Megapixel resolution (960 × 960) with a 7.6 μm micromirror pitch and ±12° tilt angle.
• Optimized for bottom illumination to enable compact optical engine designs.
• Integrated built-in self-test (BIST) capability for DMD memory cells.

Specialized ICS Applications

• High-resolution adaptive driving beam headlights
• LIDAR optical filtering systems
• Symbol projection for vehicle communication
• Personalized lighting signatures

Specialized ICS Procurement Notes

Verify that the procurement includes the complete chipset components required for reliable operation, specifically the DLPC231-Q1 controller and TPS99001-Q1 system management unit. Ensure handling procedures adhere to electrostatic discharge (ESD) precautions, as the device is sensitive to human body model discharges up to ±1000V. Confirm package integrity for the 120-pin CLGA form factor upon receipt.

Specialized ICS Selection Notes

Select this component for applications requiring high-resolution binary light modulation in automotive exterior lighting. The 2:1 aspect ratio is suitable for wide-format headlight designs. Designers must account for the specific power supply requirements, including VBIAS at 16 V and VRESET at -10 V, alongside the standard 1.8 V logic supplies. Thermal management solutions should target the active area-to-test point thermal resistance of 1.5 °C/W.

Specialized ICS Part Context

This device belongs to the DLP4621-Q1 series of automotive digital micromirror devices. It is distinct from HUD-focused variants like the DLP4620S-Q1 by its optimization for exterior lighting throughput and aspect ratios. The FQX suffix denotes the specific 120-pin CLGA package configuration used for system integration.

Specialized ICS Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. The DLP4621-Q1 functions as part of a proprietary chipset; replacement requires matching the DLPC231-Q1 and TPS99001-Q1 controllers to ensure functional compatibility.

Specialized ICS FAQ

What is the recommended operating voltage for the VBIAS supply?

The typical nominal voltage for the VBIAS supply is 16 V, with an operating range of 15.5 V to 16.5 V.

How does the DLP4621-Q1 handle thermal management?

The device is configured for bottom illumination and features low thermal resistance to the array. Heat is conducted to the back of the package, requiring a cooling system capable of maintaining the array temperature between -40°C and +105°C.

What is the maximum clock frequency for the low-speed interface?

The maximum clock frequency for the low-speed interface (LS_CLK) is 130 MHz.