DLPA3085PFDR

Overview

The DLPA3085PFDR is a Texas Instruments PMIC and high-current LED driver IC designed for DLP systems. It features three independent output channels with an integrated buck topology, supporting input voltages from 6 V to 20 V. Each channel delivers up to 16 A of drive current, enabling high-brightness RGB illumination. The device operates at a switching frequency of 600 kHz and includes integrated MOSFETs. It communicates via I2C and SPI interfaces for precise dimming control. The component is housed in a 100-pin HTQFP package and functions within a temperature range of 0°C to +70°C.

Feature Summary

• High-efficiency RGB LED driver architecture capable of driving external FETs up to 16A per channel
• Integrated power management solution combining PMIC functionality with high-current LED driving capabilities
• Supports digital control interfaces including I2C and SPI for programmable dimming and configuration

Applications

• Digital Light Processing (DLP) projection systems requiring high-brightness RGB illumination
• Integration with DLPC8xxx controller families for synchronized light engine operation
• High-performance laser or LED-based lighting engines in commercial or industrial projectors

Procurement Notes

Verify the specific suffix 'PFD' corresponds to the 100-pin HTQFP package and tape-and-reel orientation as defined by Texas Instruments. Confirm that the intended application environment remains within the specified 0°C to +70°C operating temperature range. Ensure compatibility with the DLPC8xxx controller series before procurement, as this driver is specifically engineered for those architectures. Check RoHS compliance documentation if required for your manufacturing standards.

Selection Notes

Select the DLPA3085PFDR when designing DLP systems that require individual channel currents exceeding standard driver limits, specifically up to 16A for RGB channels. This part is appropriate for applications utilizing DLPC8xxx controllers where integrated power management and high-current LED driving are necessary. Consider the 100-pin HTQFP footprint for PCB layout constraints. It is distinct from lower-current variants like the DLPA3000, which supports only 6A outputs.

Part Context

This component belongs to the DLPA3000 family of power management and LED drivers developed by Texas Instruments for DLP technology. While the base DLPA3000 series supports up to 6A per channel, the DLPA3085 variant extends this capability to support higher brightness requirements by driving external FETs up to 16A. It serves as a critical interface between the DLP controller and the light source, managing both system power and LED illumination intensity.

Replacement Considerations

The DLPA3000DPFDR is a related part but offers lower current capability (6A vs 16A). Direct substitution requires verifying if the optical design can tolerate reduced LED current. No other direct pin-to-pin replacements with identical 16A specifications are publicly confirmed for this exact package and controller pairing.