DLPS280 October   2024 DLPA3082

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 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 SPI Timing Parameters
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Description
    3. 6.3 Feature Description
      1. 6.3.1 Supply and Monitoring
        1. 6.3.1.1 Supply
        2. 6.3.1.2 Monitoring
          1. 6.3.1.2.1 Block Faults
          2. 6.3.1.2.2 Thermal Protection
      2. 6.3.2 DMD Supplies
        1. 6.3.2.1 LDO DMD
        2. 6.3.2.2 DMD HV Regulator
        3. 6.3.2.3 DMD/DLPC Buck Converters
        4. 6.3.2.4 DMD Monitoring
          1. 6.3.2.4.1 Power Good
          2. 6.3.2.4.2 Overvoltage Fault
      3. 6.3.3 Buck Converters
        1. 6.3.3.1 LDO Bucks
        2. 6.3.3.2 General Purpose Buck Converters
        3. 6.3.3.3 Buck Converter Monitoring
          1. 6.3.3.3.1 Power Good
          2. 6.3.3.3.2 Overvoltage Fault
        4. 6.3.3.4 Buck Converter Efficiency
      4. 6.3.4 Auxiliary LDOs
      5. 6.3.5 Measurement System
    4. 6.4 Device Functional Modes
    5. 6.5 Programming
      1. 6.5.1 SPI
      2. 6.5.2 Interrupt
      3. 6.5.3 Fast-Shutdown in Case of Fault
    6. 6.6 Register Maps
  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
        1. 7.2.2.1 Component Selection for General-Purpose Buck Converter
    3. 7.3 System Example with DLPA3082 Internal Block Diagram
    4. 7.4 Power Supply Recommendations
      1. 7.4.1 Power-Up and Power-Down Timing
    5. 7.5 Layout
      1. 7.5.1 Layout Guidelines
        1. 7.5.1.1 SPI Connections
      2. 7.5.2 Layout Example
      3. 7.5.3 Thermal Considerations
  9. 8 Device and Documentation Support
    1. 8.1 Third-Party Products Disclaimer
    2. 8.2 Device Support
      1. 8.2.1 Device Nomenclature
    3. 8.3 Receiving Notification of Documentation Updates
    4. 8.4 Support Resources
    5. 8.5 Trademarks
    6. 8.6 Electrostatic Discharge Caution
    7. 8.7 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

6.6 Register Maps

Register Address, Default, R/W, Register name. Boldface settings are the hardwired defaults.

Table 6-7 Register Map
NAME BITS DESCRIPTION
0x00, 40, R/W, Chip Identification
CHIPID [7:4] Chip identification number: 3 (hex)
REVID [3:0] Revision number, 0 (hex)
0x01, 82, R/W, Enable Register
FAST_SHUTDOWN_EN [7] 0: Fast shutdown disabled
1: Fast shutdown enabled
CW_EN [6] Reserved
BUCK_GP3_EN [5] Reserved, value default as 0
BUCK_GP2_EN [4] 0: General purpose buck2 disabled
1: General purpose buck2 enabled
BUCK_GP1_EN [3] Reserved, value default as 0
Reserved [2] Reserved
Reserved [1] Reserved
DMD_EN [0] 0: DMD regulators disabled
1: DMD regulators enabled
0x0C, 00, R, Main Status Register
SUPPLY_FAULT [7] 0: No PG or OV failures for any of the LV Supplies
1: PG failures for a LV Supplies
Reserved [6] Reserved
PROJ_ON_INT [5] 0: PROJ_ON = HIGH
1: PROJ_ON = LOW
DMD_FAULT [4] 0: DMD_FAULT = LOW
1: DMD_FAULT = HIGH
BAT_LOW_SHUT [3] Reserved
BAT_LOW_WARN [2] Reserved
TS_SHUT [1] 0: Chip temperature < 132.5°C and no violation in V5V0
1: Chip temperature > 156.5°C, or violation in V5V0
TS_WARN [0] 0: Chip temperature < 121.4°C
1: Chip temperature > 123.4°C
0x0D, F5, Interrupt Mask Register
SUPPLY_FAULT_MASK [7] 0: Not masked for SUPPLY_FAULT interrupt
1: Masked for SUPPLY_FAULT interrupt
Reserved [6] Reserved
PROJ_ON_INT_MASK [5] 0: Not masked for PROJ_ON_INT interrupt
1: Masked for PROJ_ON_INT interrupt
DMD_FAULT_MASK [4] 0: Not masked for DMD_FAULT interrupt
1: Masked for DMD_FAULT interrupt
BAT_LOW_SHUT_MASK [3] Reserved, value default as 0
BAT_LOW_WARN_MASK [2] Reserved, value default as 1
TS_SHUT_MASK [1] 0: Not masked for TS_SHUT interrupt
1: Masked for TS_SHUT interrupt
TS_WARN_MASK [0] 0: Not masked for TS_WARN interrupt
1: Masked for TS_WARN interrupt
0x27, 00, R, Detailed status register1 (Power good failures for general purpose block)
BUCK_GP3_PG_FAULT [7] Reserved, value default as 0
BUCK_GP1_PG_FAULT [6] Reserved, value default as 0
BUCK_GP2_PG_FAULT [5] 0: No fault
1: General purpose buck2 power good failure. Does not initiate a fast shutdown.
Reserved [4] Reserved
Reserved [3] Reserved
Reserved [2] Reserved
Reserved [1] Reserved, value always 0
Reserved [0] Reserved, value always 0
0x28, 00, R, Detailed status register2 (Overvoltage failures for general purpose block)
BUCK_GP3_OV_FAULT [7] Reserved, value default as 0
BUCK_GP1_OV_FAULT [6] Reserved, value default as 0
BUCK_GP2_OV_FAULT [5] 0: No fault
1: General purpose buck2 overvoltage failure. Does not initiate a fast shutdown.
Reserved [4] Reserved, value always 0
Reserved [3] Reserved
Reserved [2] Reserved
Reserved [1] Reserved, value always 0
Reserved [0] Reserved, value always 0
0x29, 00, R, Detailed status register3 (Power good failure for DMD related blocks)
Reserved [7] Reserved, value always 0
DMD_PG_FAULT [6] 0: No fault
1: VBIAS, VOFS and/or VRST power good failure. Initiates a fast shutdown.
BUCK_DMD1_PG_FAULT [5] 0: No fault
1: Buck1 (used to create DMD voltages) power good failure. Initiates a fast shutdown.
BUCK_DMD2_PG_FAULT [4] 0: No fault
1: Buck2 (used to create DMD voltages) power good failure. Initiates a fast shutdown.
Reserved [3] Reserved, value always 0
Reserved [2] Reserved, value always 0
LDO_GP1_PG_FAULT /
LDO_DMD1_PG_FAULT		 [1] 0: No fault
1: LDO1 (used as general purpose or DMD specific LDO) power good failure. Initiates a fast shutdown.
LDO_GP2_PG_FAULT /
LDO_DMD2_PG_FAULT		 [0] 0: No fault
1: LDO2 (used as general purpose or DMD specific LDO) power good failure. Initiates a fast shutdown.
0x2A, 00, R, Detailed status register4 (Overvoltage failures for DMD related blocks and Color Wheel)
Reserved [7] Reserved, value always 0
Reserved [6] Reserved, value always 0
BUCK_DMD1_OV_FAULT [5] 0: No fault
1: Buck1 (used to create DMD voltage) overvoltage failure
BUCK_DMD2_OV_FAULT [4] 0: No fault
1: Buck2 (used to create DMD voltage) overvoltage failure
Reserved [3] Reserved, value always 0
Reserved [2] Reserved, value always 0
LDO_GP1_OV_FAULT /
LDO_DMD1_OV_FAULT		 [1] 0: No fault
1: LDO1 (used as general purpose or DMD specific LDO) overvoltage failure
LDO_GP2_OV_FAULT /
LDO_DMD2_OV_FAULT		 [0] 0: No fault
1: LDO2 (used as general purpose or DMD specific LDO) overvoltage failure