DLPS186C March   2021  – September 2025 DLP650TE

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1  Absolute Maximum Ratings
    2. 5.2  Storage Conditions
    3. 5.3  ESD Ratings
    4. 5.4  Recommended Operating Conditions
    5. 5.5  Thermal Information
    6. 5.6  Electrical Characteristics
    7. 5.7  Switching Characteristics
    8.     14
    9. 5.8  Timing Requirements
    10.     16
    11. 5.9  System Mounting Interface Loads
    12.     18
    13. 5.10 Micromirror Array Physical Characteristics
    14.     20
    15. 5.11 Micromirror Array Optical Characteristics
    16. 5.12 Window Characteristics
    17. 5.13 Chipset Component Usage Specification
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Power Interface
      2. 6.3.2 Timing
    4. 6.4 Device Functional Modes
    5. 6.5 Optical Interface and System Image Quality Considerations
      1. 6.5.1 Numerical Aperture and Stray Light Control
      2. 6.5.2 Pupil Match
      3. 6.5.3 Illumination Overfill
    6. 6.6 Micromirror Array Temperature Calculation
    7. 6.7 Micromirror Power Density Calculation
    8. 6.8 Window Aperture Illumination Overfill Calculation
    9. 6.9 Micromirror Landed-On/Landed-Off Duty Cycle
      1. 6.9.1 Definition of Micromirror Landed-On/Landed-Off Duty Cycle
      2. 6.9.2 Landed Duty Cycle and Useful Life of the DMD
      3. 6.9.3 Landed Duty Cycle and Operational DMD Temperature
      4. 6.9.4 Estimating the Long-Term Average Landed Duty Cycle of a Product or Application
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
      3. 7.2.3 Application Curve
    3. 7.3 Temperature Sensor Diode
  9. 8 Power Supply Recommendations
    1. 8.1 Power Supply Sequence Requirements
    2. 8.2 DMD Power Supply Power-Up Procedure
    3. 8.3 DMD Power Supply Power-Down Procedure
  10. 9 Layout
    1. 9.1 Layout Guidelines
    2. 9.2 Impedance Requirements
    3. 9.3 Layers
    4. 9.4 Trace Width, Spacing
    5. 9.5 Power
    6. 9.6 Trace Length Matching Recommendations
  11. 10Device and Documentation Support
    1. 10.1 Third-Party Products Disclaimer
    2. 10.2 Device Support
      1. 10.2.1 Device Nomenclature
      2. 10.2.2 Device Markings
    3. 10.3 Documentation Support
      1. 10.3.1 Related Documentation
    4. 10.4 Receiving Notification of Documentation Updates
    5. 10.5 Support Resources
    6. 10.6 Trademarks
    7. 10.7 Electrostatic Discharge Caution
    8. 10.8 Glossary
  12. 11Revision History
  13. 12Mechanical, Packaging, and Orderable Information
    1. 12.1 Package Option Addendum
      1. 12.1.1 Packaging Information

6.8 Window Aperture Illumination Overfill Calculation

The amount of optical overfill on the critical area of the window aperture cannot be measured directly. For systems with uniform illumination on the array, the amount is determined using the total measured incident optical power on the DMD, and the ratio of the total optical power on the DMD that is on the defined critical area. The optical model is used to determine the percent of optical power on the window aperture critical area and estimate the size of the area.

  • QAP-ILL = [QINCIDENTx OPAP_ILL_RATIO]+AAP_ILL(W/cm2)

where:

  • QAP-ILL = window aperture illumination overfill (W/cm2)
  • QINCIDENT = total incident optical power on the DMD (Watts) (measured)
  • OPAP_ILL_RATIO = ratio of the optical power on the critical area of the window aperture to the total optical power on the DMD (optical model)
  • AAP-ILL = size of the window aperture critical area (cm2) (data sheet)
  • OPCA_RATIO = percent of the window aperture critical area with incident optical power (%) (optical model)

DLP650TE Illumination Overfill Diagram—Critical Area

Figure 6-2 Illumination Overfill Diagram—Critical Area
QINCIDENT = 48W (measured)
OPAP_ILL_RATIO = 0.312% (optical model)
OVCA_RATIO = 25% (optical model)
Length of the window aperture for critical area = 1.5998cm (data sheet mechanical icd)
Width of critical area = 0.050cm (data sheet)
AAP-ILL= 1.5998cm × 0.050cm = 0.079990cm2
QAP-ILL= (48W x 0.00312)+(0.079990cm2 × 0.25) = 7.5W/cm2