SPRS982H December   2016  – December 2019 AM5746 , AM5748 , AM5749

PRODUCTION DATA.  

  1. 1Device Overview
    1. 1.1 Features
    2. 1.2 Applications
    3. 1.3 Description
    4. 1.4 Functional Block Diagram
  2. 2Revision History
  3. 3Device Comparison
    1. 3.1 Related Products
  4. 4Terminal Configuration and Functions
    1. 4.1 Pin Diagram
    2. 4.2 Pin Attributes
    3. 4.3 Signal Descriptions
      1. 4.3.1  VIP
      2. 4.3.2  DSS
      3. 4.3.3  HDMI
      4. 4.3.4  EMIF
      5. 4.3.5  GPMC
      6. 4.3.6  Timer
      7. 4.3.7  I2C
      8. 4.3.8  HDQ1W
      9. 4.3.9  UART
      10. 4.3.10 McSPI
      11. 4.3.11 QSPI
      12. 4.3.12 McASP
      13. 4.3.13 USB
      14. 4.3.14 SATA
      15. 4.3.15 PCIe
      16. 4.3.16 DCAN and MCAN
      17. 4.3.17 GMAC_SW
      18. 4.3.18 MLB
      19. 4.3.19 eMMC/SD/SDIO
      20. 4.3.20 GPIO
      21. 4.3.21 KBD
      22. 4.3.22 PWM
      23. 4.3.23 PRU-ICSS
      24. 4.3.24 Test Interfaces
      25. 4.3.25 System and Miscellaneous
        1. 4.3.25.1 Sysboot
        2. 4.3.25.2 PRCM
        3. 4.3.25.3 RTCSS
        4. 4.3.25.4 SDMA
        5. 4.3.25.5 INTC
        6. 4.3.25.6 Observability
        7. 4.3.25.7 Power Supplies
    4. 4.4 Pin Multiplexing
    5. 4.5 Connections for Unused Pins
  5. 5Specifications
    1. 5.1  Absolute Maximum Ratings
    2. 5.2  ESD Ratings
    3. 5.3  Power-On Hours (POH) Limits
      1. Table 5-1 Power-On Hours (POH) Limits
    4. 5.4  Recommended Operating Conditions
    5. 5.5  Operating Performance Points
      1. 5.5.1 AVS and ABB Requirements
      2. 5.5.2 Voltage And Core Clock Specifications
      3. 5.5.3 Maximum Supported Frequency
    6. 5.6  Power Consumption Summary
    7. 5.7  Electrical Characteristics
      1. Table 5-7  LVCMOS DDR DC Electrical Characteristics
      2. Table 5-8  Dual Voltage LVCMOS I2C DC Electrical Characteristics
      3. Table 5-9  IQ1833 Buffers DC Electrical Characteristics
      4. Table 5-10 IHHV1833 Buffers DC Electrical Characteristics
      5. Table 5-11 LVCMOS OSC Buffers DC Electrical Characteristics
      6. Table 5-12 BC1833IHHV Buffers DC Electrical Characteristics
      7. Table 5-13 Dual Voltage SDIO1833 DC Electrical Characteristics
      8. Table 5-14 Dual Voltage LVCMOS DC Electrical Characteristics
      9. 5.7.1      HDMIPHY DC Electrical Characteristics
      10. 5.7.2      USBPHY DC Electrical Characteristics
      11. 5.7.3      SATAPHY DC Electrical Characteristics
      12. 5.7.4      PCIEPHY DC Electrical Characteristics
    8. 5.8  VPP Specifications for One-Time Programmable (OTP) eFuses
      1. Table 5-15 Recommended Operating Conditions for OTP eFuse Programming
      2. 5.8.1      Hardware Requirements
      3. 5.8.2      Programming Sequence
      4. 5.8.3      Impact to Your Hardware Warranty
    9. 5.9  Thermal Characteristics
      1. 5.9.1 Package Thermal Characteristics
    10. 5.10 Timing Requirements and Switching Characteristics
      1. 5.10.1 Timing Parameters and Information
        1. 5.10.1.1 Parameter Information
          1. 5.10.1.1.1 1.8V and 3.3V Signal Transition Levels
          2. 5.10.1.1.2 1.8V and 3.3V Signal Transition Rates
          3. 5.10.1.1.3 Timing Parameters and Board Routing Analysis
      2. 5.10.2 Interface Clock Specifications
        1. 5.10.2.1 Interface Clock Terminology
        2. 5.10.2.2 Interface Clock Frequency
      3. 5.10.3 Power Supply Sequences
      4. 5.10.4 Clock Specifications
        1. 5.10.4.1 Input Clocks / Oscillators
          1. 5.10.4.1.1 OSC0 External Crystal
          2. 5.10.4.1.2 OSC0 Input Clock
          3. 5.10.4.1.3 Auxiliary Oscillator OSC1 Input Clock
            1. 5.10.4.1.3.1 OSC1 External Crystal
            2. 5.10.4.1.3.2 OSC1 Input Clock
          4. 5.10.4.1.4 RTC Oscillator Input Clock
            1. 5.10.4.1.4.1 RTC Oscillator External Crystal
            2. 5.10.4.1.4.2 RTC Oscillator Input Clock
        2. 5.10.4.2 RC On-die Oscillator Clock
        3. 5.10.4.3 Output Clocks
        4. 5.10.4.4 DPLLs, DLLs
          1. 5.10.4.4.1 DPLL Characteristics
          2. 5.10.4.4.2 DLL Characteristics
      5. 5.10.5 Recommended Clock and Control Signal Transition Behavior
      6. 5.10.6 Peripherals
        1. 5.10.6.1  Timing Test Conditions
        2. 5.10.6.2  Virtual and Manual I/O Timing Modes
        3. 5.10.6.3  VIP
        4. 5.10.6.4  DSS
        5. 5.10.6.5  HDMI
        6. 5.10.6.6  EMIF
        7. 5.10.6.7  GPMC
          1. 5.10.6.7.1 GPMC/NOR Flash Interface Synchronous Timing
          2. 5.10.6.7.2 GPMC/NOR Flash Interface Asynchronous Timing
          3. 5.10.6.7.3 GPMC/NAND Flash Interface Asynchronous Timing
        8. 5.10.6.8  I2C
          1. Table 5-65 Timing Requirements for I2C Input Timings
          2. Table 5-66 Timing Requirements for I2C HS-Mode (I2C3/4/5 Only)
          3. Table 5-67 Switching Characteristics Over Recommended Operating Conditions for I2C Output Timings
        9. 5.10.6.9  HDQ1W
          1. 5.10.6.9.1 HDQ / 1-Wire — HDQ Mode
          2. 5.10.6.9.2 HDQ/1-Wire—1-Wire Mode
        10. 5.10.6.10 UART
          1. Table 5-72 Timing Requirements for UART
          2. Table 5-73 Switching Characteristics Over Recommended Operating Conditions for UART
        11. 5.10.6.11 McSPI
        12. 5.10.6.12 QSPI
        13. 5.10.6.13 McASP
          1. Table 5-80 Timing Requirements for McASP1
          2. Table 5-81 Timing Requirements for McASP2
          3. Table 5-82 Timing Requirements for McASP3/4/5/6/7/8
          4. Table 5-83 Switching Characteristics Over Recommended Operating Conditions for McASP1
          5. Table 5-84 Switching Characteristics Over Recommended Operating Conditions for McASP2
          6. Table 5-85 Switching Characteristics Over Recommended Operating Conditions for McASP3/4/5/6/7/8
        14. 5.10.6.14 USB
          1. 5.10.6.14.1 USB1 DRD PHY
          2. 5.10.6.14.2 USB2 PHY
        15. 5.10.6.15 SATA
        16. 5.10.6.16 PCIe
        17. 5.10.6.17 CAN
          1. 5.10.6.17.1 DCAN
          2. 5.10.6.17.2 MCAN-FD
          3. Table 5-97  Timing Requirements for CANx Receive
          4. Table 5-98  Switching Characteristics Over Recommended Operating Conditions for CANx Transmit
        18. 5.10.6.18 GMAC_SW
          1. 5.10.6.18.1 GMAC MII Timings
            1. Table 5-99  Timing Requirements for miin_rxclk - MII Operation
            2. Table 5-100 Timing Requirements for miin_txclk - MII Operation
            3. Table 5-101 Timing Requirements for GMAC MIIn Receive 10/100 Mbit/s
            4. Table 5-102 Switching Characteristics Over Recommended Operating Conditions for GMAC MIIn Transmit 10/100 Mbits/s
          2. 5.10.6.18.2 GMAC MDIO Interface Timings
          3. 5.10.6.18.3 GMAC RMII Timings
            1. Table 5-107 Timing Requirements for GMAC REF_CLK - RMII Operation
            2. Table 5-108 Timing Requirements for GMAC RMIIn Receive
            3. Table 5-109 Switching Characteristics Over Recommended Operating Conditions for GMAC REF_CLK - RMII Operation
            4. Table 5-110 Switching Characteristics Over Recommended Operating Conditions for GMAC RMIIn Transmit 10/100 Mbits/s
          4. 5.10.6.18.4 GMAC RGMII Timings
            1. Table 5-114 Timing Requirements for rgmiin_rxc - RGMIIn Operation
            2. Table 5-115 Timing Requirements for GMAC RGMIIn Input Receive for 10/100/1000 Mbps
            3. Table 5-116 Switching Characteristics Over Recommended Operating Conditions for rgmiin_txctl - RGMIIn Operation for 10/100/1000 Mbit/s
            4. Table 5-117 Switching Characteristics for GMAC RGMIIn Output Transmit for 10/100/1000 Mbps
        19. 5.10.6.19 eMMC/SD/SDIO
          1. 5.10.6.19.1 MMC1—SD Card Interface
            1. 5.10.6.19.1.1 Default speed, 4-bit data, SDR, half-cycle
            2. 5.10.6.19.1.2 High speed, 4-bit data, SDR, half-cycle
            3. 5.10.6.19.1.3 SDR12, 4-bit data, half-cycle
            4. 5.10.6.19.1.4 SDR25, 4-bit data, half-cycle
            5. 5.10.6.19.1.5 UHS-I SDR50, 4-bit data, half-cycle
            6. 5.10.6.19.1.6 UHS-I SDR104, 4-bit data, half-cycle
            7. 5.10.6.19.1.7 UHS-I DDR50, 4-bit data
          2. 5.10.6.19.2 MMC2 — eMMC
            1. 5.10.6.19.2.1 Standard JC64 SDR, 8-bit data, half cycle
            2. 5.10.6.19.2.2 High Speed JC64 SDR, 8-bit data, half cycle
            3. 5.10.6.19.2.3 High Speed HS200 JC64 SDR, 8-bit data, half cycle
            4. 5.10.6.19.2.4 High Speed JC64 DDR, 8-bit data
          3. 5.10.6.19.3 MMC3 and MMC4—SDIO/SD
            1. 5.10.6.19.3.1 MMC3 and MMC4, SD Default Speed
            2. 5.10.6.19.3.2 MMC3 and MMC4, SD High Speed
            3. 5.10.6.19.3.3 MMC3 and MMC4, SD and SDIO SDR12 Mode
            4. 5.10.6.19.3.4 MMC3 and MMC4, SD SDR25 Mode
            5. 5.10.6.19.3.5 MMC3 SDIO High Speed UHS-I SDR50 Mode, Half Cycle
        20. 5.10.6.20 PRU-ICSS
          1. 5.10.6.20.1 Programmable Real-Time Unit (PRU-ICSS PRU)
            1. 5.10.6.20.1.1 PRU-ICSS PRU Direct Input/Output Mode Electrical Data and Timing
              1. Table 5-166 PRU-ICSS PRU Timing Requirements - Direct Input Mode
              2. Table 5-167 PRU-ICSS PRU Switching Requirements – Direct Output Mode
            2. 5.10.6.20.1.2 PRU-ICSS PRU Parallel Capture Mode Electrical Data and Timing
              1. Table 5-168 PRU-ICSS PRU Timing Requirements - Parallel Capture Mode
            3. 5.10.6.20.1.3 PRU-ICSS PRU Shift Mode Electrical Data and Timing
              1. Table 5-169 PRU-ICSS PRU Timing Requirements – Shift In Mode
              2. Table 5-170 PRU-ICSS PRU Switching Requirements - Shift Out Mode
            4. 5.10.6.20.1.4 PRU-ICSS PRU Sigma Delta and EnDAT Modes
              1. Table 5-171 PRU-ICSS PRU Timing Requirements - Sigma Delta Mode
              2. Table 5-172 PRU-ICSS PRU Timing Requirements - EnDAT Mode
              3. Table 5-173 PRU-ICSS PRU Switching Requirements - EnDAT Mode
          2. 5.10.6.20.2 PRU-ICSS EtherCAT (PRU-ICSS ECAT)
            1. 5.10.6.20.2.1 PRU-ICSS ECAT Electrical Data and Timing
              1. Table 5-174 PRU-ICSS ECAT Timing Requirements – Input Validated With LATCH_IN
              2. Table 5-175 PRU-ICSS ECAT Timing Requirements – Input Validated With SYNCx
              3. Table 5-176 PRU-ICSS ECAT Timing Requirements – Input Validated With Start of Frame (SOF)
              4. Table 5-177 PRU-ICSS ECAT Timing Requirements - LATCHx_IN
              5. Table 5-178 PRU-ICSS ECAT Switching Requirements - Digital IOs
          3. 5.10.6.20.3 PRU-ICSS MII_RT and Switch
            1. 5.10.6.20.3.1 PRU-ICSS MDIO Electrical Data and Timing
              1. Table 5-179 PRU-ICSS MDIO Timing Requirements – MDIO_DATA
              2. Table 5-180 PRU-ICSS MDIO Switching Characteristics - MDIO_CLK
              3. Table 5-181 PRU-ICSS MDIO Switching Characteristics – MDIO_DATA
            2. 5.10.6.20.3.2 PRU-ICSS MII_RT Electrical Data and Timing
              1. Table 5-182 PRU-ICSS MII_RT Timing Requirements – MII[x]_RXCLK
              2. Table 5-183 PRU-ICSS MII_RT Timing Requirements - MII[x]_TXCLK
              3. Table 5-184 PRU-ICSS MII_RT Timing Requirements - MII_RXD[3:0], MII_RXDV, and MII_RXER
              4. Table 5-185 PRU-ICSS MII_RT Switching Characteristics - MII_TXD[3:0] and MII_TXEN
          4. 5.10.6.20.4 PRU-ICSS Universal Asynchronous Receiver Transmitter (PRU-ICSS UART)
            1. Table 5-186 Timing Requirements for PRU-ICSS UART Receive
            2. Table 5-187 Switching Characteristics Over Recommended Operating Conditions for PRU-ICSS UART Transmit
          5. 5.10.6.20.5 PRU-ICSS IOSETs
          6. 5.10.6.20.6 PRU-ICSS Manual Functional Mapping
        21. 5.10.6.21 System and Miscellaneous interfaces
      7. 5.10.7 Emulation and Debug Subsystem
        1. 5.10.7.1 JTAG
          1. 5.10.7.1.1 JTAG Electrical Data/Timing
            1. Table 5-210 Timing Requirements for IEEE 1149.1 JTAG
            2. Table 5-211 Switching Characteristics Over Recommended Operating Conditions for IEEE 1149.1 JTAG
            3. Table 5-212 Timing Requirements for IEEE 1149.1 JTAG With RTCK
            4. Table 5-213 Switching Characteristics Over Recommended Operating Conditions for IEEE 1149.1 JTAG With RTCK
        2. 5.10.7.2 TPIU
          1. 5.10.7.2.1 TPIU PLL DDR Mode
  6. 6Detailed Description
    1. 6.1 Overview
    2. 6.2 Processor Subsystems
      1. 6.2.1 MPU
      2. 6.2.2 DSP Subsystem
      3. 6.2.3 IPU
      4. 6.2.4 Interrupt Controller
      5. 6.2.5 VPE
    3. 6.3 Accelerators and Coprocessors
      1. 6.3.1 IVA
      2. 6.3.2 GPU
      3. 6.3.3 PRU-ICSS
      4. 6.3.4 EVE
    4. 6.4 Other Subsystems
      1. 6.4.1 Memory Subsystem
        1. 6.4.1.1 EMIF
        2. 6.4.1.2 GPMC
        3. 6.4.1.3 ELM
        4. 6.4.1.4 OCMC
        5. 6.4.1.5 Interprocessor Communication
          1. 6.4.1.5.1 Mailbox
          2. 6.4.1.5.2 Spinlock
      2. 6.4.2 EDMA
      3. 6.4.3 Peripherals
        1. 6.4.3.1  VIP
        2. 6.4.3.2  DSS
        3. 6.4.3.3  Timers
        4. 6.4.3.4  I2C
        5. 6.4.3.5  HDQ1W
        6. 6.4.3.6  UART
          1. 6.4.3.6.1 UART Features
          2. 6.4.3.6.2 IrDA Features
          3. 6.4.3.6.3 CIR Features
        7. 6.4.3.7  McSPI
        8. 6.4.3.8  QSPI
        9. 6.4.3.9  McASP
        10. 6.4.3.10 USB
        11. 6.4.3.11 SATA
        12. 6.4.3.12 PCIe
        13. 6.4.3.13 CAN
          1. 6.4.3.13.1 DCAN
          2. 6.4.3.13.2 MCAN-FD
        14. 6.4.3.14 GMAC_SW
        15. 6.4.3.15 eMMC/SD/SDIO
        16. 6.4.3.16 GPIO
        17. 6.4.3.17 ePWM
        18. 6.4.3.18 eCAP
        19. 6.4.3.19 eQEP
      4. 6.4.4 On-Chip Debug
    5. 6.5 Identification
      1. 6.5.1 Revision Identification
      2. 6.5.2 Die Identification
      3. 6.5.3 JTAG Identification
      4. 6.5.4 ROM Code Identification
    6. 6.6 Boot Modes
      1. 6.6.1 Boot Mode List
      2. 6.6.2 Boot Mode Pin Usage
        1. 6.6.2.1 GPMC Configuration for XIP/NAND
        2. 6.6.2.2 System Clock Speed Selection
        3. 6.6.2.3 QSPI Redundant SBL Images Offset
      3. 6.6.3 Boot Mode Selection
        1. 6.6.3.1 Booting Device Order Selection
  7. 7Applications, Implementation, and Layout
    1. 7.1 Power Supply Mapping
    2. 7.2 DDR3 Board Design and Layout Guidelines
      1. 7.2.1 DDR3 General Board Layout Guidelines
      2. 7.2.2 DDR3 Board Design and Layout Guidelines
        1. 7.2.2.1  Board Designs
        2. 7.2.2.2  DDR3 EMIFs
        3. 7.2.2.3  DDR3 Device Combinations
        4. 7.2.2.4  DDR3 Interface Schematic
          1. 7.2.2.4.1 32-Bit DDR3 Interface
          2. 7.2.2.4.2 16-Bit DDR3 Interface
        5. 7.2.2.5  Compatible JEDEC DDR3 Devices
        6. 7.2.2.6  PCB Stackup
        7. 7.2.2.7  Placement
        8. 7.2.2.8  DDR3 Keepout Region
        9. 7.2.2.9  Bulk Bypass Capacitors
        10. 7.2.2.10 High Speed Bypass Capacitors
          1. 7.2.2.10.1 Return Current Bypass Capacitors
        11. 7.2.2.11 Net Classes
        12. 7.2.2.12 DDR3 Signal Termination
        13. 7.2.2.13 VREF_DDR Routing
        14. 7.2.2.14 VTT
        15. 7.2.2.15 CK and ADDR_CTRL Topologies and Routing Definition
          1. 7.2.2.15.1 Four DDR3 Devices
            1. 7.2.2.15.1.1 CK and ADDR_CTRL Topologies, Four DDR3 Devices
            2. 7.2.2.15.1.2 CK and ADDR_CTRL Routing, Four DDR3 Devices
          2. 7.2.2.15.2 Two DDR3 Devices
            1. 7.2.2.15.2.1 CK and ADDR_CTRL Topologies, Two DDR3 Devices
            2. 7.2.2.15.2.2 CK and ADDR_CTRL Routing, Two DDR3 Devices
          3. 7.2.2.15.3 One DDR3 Device
            1. 7.2.2.15.3.1 CK and ADDR_CTRL Topologies, One DDR3 Device
            2. 7.2.2.15.3.2 CK and ADDR/CTRL Routing, One DDR3 Device
        16. 7.2.2.16 Data Topologies and Routing Definition
          1. 7.2.2.16.1 DQS and DQ/DM Topologies, Any Number of Allowed DDR3 Devices
          2. 7.2.2.16.2 DQS and DQ/DM Routing, Any Number of Allowed DDR3 Devices
        17. 7.2.2.17 Routing Specification
          1. 7.2.2.17.1 CK and ADDR_CTRL Routing Specification
          2. 7.2.2.17.2 DQS and DQ Routing Specification
    3. 7.3 High Speed Differential Signal Routing Guidance
    4. 7.4 Power Distribution Network Implementation Guidance
    5. 7.5 Thermal Solution Guidance
    6. 7.6 Single-Ended Interfaces
      1. 7.6.1 General Routing Guidelines
      2. 7.6.2 QSPI Board Design and Layout Guidelines
    7. 7.7 LJCB_REFN/P Connections
    8. 7.8 Clock Routing Guidelines
      1. 7.8.1 32-kHz Oscillator Routing
      2. 7.8.2 Oscillator Ground Connection
  8. 8Device and Documentation Support
    1. 8.1 Device Nomenclature
      1. 8.1.1 Standard Package Symbolization
      2. 8.1.2 Device Naming Convention
    2. 8.2 Tools and Software
    3. 8.3 Documentation Support
    4. 8.4 Related Links
    5. 8.5 Support Resources
    6. 8.6 Trademarks
    7. 8.7 Electrostatic Discharge Caution
    8. 8.8 Glossary
  9. 9Mechanical, Packaging, and Orderable Information
    1. 9.1 Packaging Information

パッケージ・オプション

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発注情報

7.1 Power Supply Mapping

TPS659037 is the Power Management IC (PMIC) that should be used for the device designs. TI requires use of this PMIC for the following reasons:

  • TI has validated its use with the device
  • Board level margins including transient response and output accuracy are analyzed and optimized for the entire system
  • Support for power sequencing requirements (refer to Section 5.10.3, Power Supply Sequences)
  • Support for Adaptive Voltage Scaling (AVS) Class 0 requirements, including TI provided software

Whenever we allow for combining of rails mapped on any of the SMPS outputs, the PDN guidelines that are the most stringent of the rails combined should be implemented for the particular supply rail.

It is possible that some voltage domains on the device are unused in some systems. In such cases, to ensure device reliability, it is still required that the supply pins for the specific voltage domains are connected to some core power supply output.

These unused supplies though can be combined with any of the core supplies that are used (active) in the system. For example, if IVA and GPU domains are not used, they can be combined with the CORE domain, thereby having a single power supply driving the combined CORE, IVA and GPU domains.

For the combined rail, the following relaxations do apply:

  • The AVS voltage of active rail in the combined rail needs to be used to set the power supply
  • The decoupling capacitance should be set according to the active rail in the combined rail

Table 7-1 illustrates the approved and validated power supply connections to the device for the PMIC outputs of the TPS659037 PMIC.

Table 7-1 TPS659037 Power Supply Connections(1)

TPS659037 POWER SUPPLY VALID COMBINATION 1 VALID COMBINATION 2
SMPS1/2(2) vdd_mpu vdd_mpu
SMPS3 vdds_ddr1, vdds_ddr2 vdds_ddr1, vdds_ddr2
SMPS4/5 vdd_dspeve, vdd_gpu, vdd_iva vdd_dspeve
SMPS6 vdd vdd_gpu
SMPS7 SW configuration after boot vdd
SMPS8 vdds18v vdd_iva
SMPS9 SW configuration after boot 3.3V vddshvx
LDO1 vddshv8 vddshv8
LDO2 vddshv5 vdds18v
LDO3 vdda_usb1, vdda_usb2, vdda_usb3, vdda_sata vdda_usb1, vdda_usb2, vdda_usb3, vdda_sata
LDO4 vdda_hdmi, vdda_pcie, vdda_pcie0, vdda_pcie1 vdda_hdmi, vdda_pcie, vdda_pcie0, vdda_pcie1
LDO9 vdd_rtc vdd_rtc
LDOLN 1.8V PLLs 1.8V PLLs
LDOUSB vdda_usb3v3 vdda_usb3v3
  1. Power consumption is highly application-specific. Separate analysis must be performed to ensure output current ratings (average and peak) is within the limits of the PMIC for all rails of the device.
  2. Refer to the PMIC data manual for the latest TPS659037 Specifications.
  3. For more information on connectivity with the TPS659037 PMIC, see the TPS659037 User's Guide to Power AM574x, AM572x, and AM571x.
  4. A product’s maximum ambient temperature, thermal system design and heat spreading performance could limit the maximum power dissipation below the full PMIC capacity in order to not exceed recommended SoC max Tj.