SLUSF87 February   2024 TPSM8S6B24S

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 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1  Average Current-Mode Control
        1. 6.3.1.1 On-Time Modulator
        2. 6.3.1.2 Current Error Integrator
        3. 6.3.1.3 Voltage Error Integrator
      2. 6.3.2  Linear Regulators
      3. 6.3.3  AVIN and PVIN Pins
      4. 6.3.4  Input Undervoltage Lockout (UVLO)
        1. 6.3.4.1 Fixed AVIN UVLO
        2. 6.3.4.2 Fixed VDD5 UVLO
        3. 6.3.4.3 Programmable PVIN UVLO
        4. 6.3.4.4 EN/UVLO Pin
      5. 6.3.5  Start-Up and Shutdown
      6. 6.3.6  Differential Sense Amplifier and Feedback Divider
      7. 6.3.7  Set Output Voltage and Adaptive Voltage Scaling (AVS)
        1. 6.3.7.1 Reset Output Voltage
        2. 6.3.7.2 Soft Start
      8. 6.3.8  Prebiased Output Start-Up
      9. 6.3.9  Soft Stop and (65h) TOFF_FALL Command
      10. 6.3.10 Power Good (PGOOD)
      11. 6.3.11 Set Switching Frequency
      12. 6.3.12 Frequency Synchronization
      13. 6.3.13 Loop Follower Detection
      14. 6.3.14 Current Sensing and Sharing
      15. 6.3.15 Telemetry
      16. 6.3.16 Overcurrent Protection
      17. 6.3.17 Overvoltage, Undervoltage Protection
      18. 6.3.18 Overtemperature Management
      19. 6.3.19 Fault Management
      20. 6.3.20 Back-Channel Communication
      21. 6.3.21 Switching Node (SW)
      22. 6.3.22 PMBus® General Description
      23. 6.3.23 PMBus® Address
      24. 6.3.24 PMBus® Connections
    4. 6.4 Device Functional Modes
      1. 6.4.1 Programming Mode
      2. 6.4.2 Standalone, Loop Controller, Loop Follower Mode Pin Connections
      3. 6.4.3 Continuous Conduction Mode
      4. 6.4.4 Operation With CNTL Signal (EN/UVLO)
      5. 6.4.5 Operation with (01h) OPERATION Control
      6. 6.4.6 Operation with CNTL and (01h) OPERATION Control
    5. 6.5 Programming
      1. 6.5.1 Supported PMBus Commands
      2. 6.5.2 Pin Strapping
        1. 6.5.2.1 Programming MSEL1
        2. 6.5.2.2 Programming MSEL2
        3. 6.5.2.3 Programming VSEL
        4. 6.5.2.4 Programming ADRSEL
        5. 6.5.2.5 Programming MSEL2 for a Loop Follower Device (GOSNS Tied to BP1V5)
        6. 6.5.2.6 Pin-Strapping Resistor Configuration
  8. 7 Register Maps
    1. 7.1  Conventions for Documenting Block Commands
    2. 7.2  (01h) OPERATION
    3. 7.3  (02h) ON_OFF_CONFIG
    4. 7.4  (03h) CLEAR_FAULTS
    5. 7.5  (04h) PHASE
    6. 7.6  (10h) WRITE_PROTECT
    7. 7.7  (15h) STORE_USER_ALL
    8. 7.8  (16h) RESTORE_USER_ALL
    9. 7.9  (19h) CAPABILITY
    10. 7.10 (1Bh) SMBALERT_MASK
    11. 7.11 (1Bh) SMBALERT_MASK_VOUT
    12. 7.12 (1Bh) SMBALERT_MASK_IOUT
    13. 7.13 (1Bh) SMBALERT_MASK_INPUT
    14. 7.14 (1Bh) SMBALERT_MASK_TEMPERATURE
    15. 7.15 (1Bh) SMBALERT_MASK_CML
    16. 7.16 (1Bh) SMBALERT_MASK_OTHER
    17. 7.17 (1Bh) SMBALERT_MASK_MFR
    18. 7.18 (20h) VOUT_MODE
    19. 7.19 (21h) VOUT_COMMAND
    20. 7.20 (22h) VOUT_TRIM
    21. 7.21 (24h) VOUT_MAX
    22. 7.22 (25h) VOUT_MARGIN_HIGH
    23. 7.23 (26h) VOUT_MARGIN_LOW
    24. 7.24 (27h) VOUT_TRANSITION_RATE
    25. 7.25 (29h) VOUT_SCALE_LOOP
    26. 7.26 (2Bh) VOUT_MIN
    27. 7.27 (33h) FREQUENCY_SWITCH
    28. 7.28 (35h) VIN_ON
    29. 7.29 (36h) VIN_OFF
    30. 7.30 (37h) INTERLEAVE
    31. 7.31 (38h) IOUT_CAL_GAIN
    32. 7.32 (39h) IOUT_CAL_OFFSET
    33. 7.33 (40h) VOUT_OV_FAULT_LIMIT
    34. 7.34 (41h) VOUT_OV_FAULT_RESPONSE
    35. 7.35 (42h) VOUT_OV_WARN_LIMIT
    36. 7.36 (43h) VOUT_UV_WARN_LIMIT
    37. 7.37 (44h) VOUT_UV_FAULT_LIMIT
    38. 7.38 (45h) VOUT_UV_FAULT_RESPONSE
    39. 7.39 (46h) IOUT_OC_FAULT_LIMIT
    40. 7.40 (47h) IOUT_OC_FAULT_RESPONSE
    41. 7.41 (4Ah) IOUT_OC_WARN_LIMIT
    42. 7.42 (4Fh) OT_FAULT_LIMIT
    43. 7.43 (50h) OT_FAULT_RESPONSE
    44. 7.44 (51h) OT_WARN_LIMIT
    45. 7.45 (55h) VIN_OV_FAULT_LIMIT
    46. 7.46 (56h) VIN_OV_FAULT_RESPONSE
    47. 7.47 (58h) VIN_UV_WARN_LIMIT
    48. 7.48 (60h) TON_DELAY
    49. 7.49 (61h) TON_RISE
    50. 7.50 (62h) TON_MAX_FAULT_LIMIT
    51. 7.51 (63h) TON_MAX_FAULT_RESPONSE
    52. 7.52 (64h) TOFF_DELAY
    53. 7.53 (65h) TOFF_FALL
    54. 7.54 (78h) STATUS_BYTE
    55. 7.55 (79h) STATUS_WORD
    56. 7.56 (7Ah) STATUS_VOUT
    57. 7.57 (7Bh) STATUS_IOUT
    58. 7.58 (7Ch) STATUS_INPUT
    59. 7.59 (7Dh) STATUS_TEMPERATURE
    60. 7.60 (7Eh) STATUS_CML
    61. 7.61 (7Fh) STATUS_OTHER
    62. 7.62 (80h) STATUS_MFR_SPECIFIC
    63. 7.63 (88h) READ_VIN
    64. 7.64 (8Bh) READ_VOUT
    65. 7.65 (8Ch) READ_IOUT
    66. 7.66 (8Dh) READ_TEMPERATURE_1
    67. 7.67 (98h) PMBUS_REVISION
    68. 7.68 (99h) MFR_ID
    69. 7.69 (9Ah) MFR_MODEL
    70. 7.70 (9Bh) MFR_REVISION
    71. 7.71 (9Eh) MFR_SERIAL
    72. 7.72 (ADh) IC_DEVICE_ID
    73. 7.73 (AEh) IC_DEVICE_REV
    74. 7.74 (B1h) USER_DATA_01 (COMPENSATION_CONFIG)
    75. 7.75 (B5h) USER_DATA_05 (POWER_STAGE_CONFIG)
    76. 7.76 (D0h) MFR_SPECIFIC_00 (TELEMETRY_CONFIG)
    77. 7.77 (DAh) MFR_SPECIFIC_10 (READ_ALL)
    78. 7.78 (DBh) MFR_SPECIFIC_11 (STATUS_ALL)
    79. 7.79 (DCh) MFR_SPECIFIC_12 (STATUS_PHASE)
    80. 7.80 (E3h) MFR_SPECIFIC_19 (PGOOD_CONFIG)
    81. 7.81 (E4h) MFR_SPECIFIC_20 (SYNC_CONFIG)
    82. 7.82 (ECh) MFR_SPECIFIC_28 (STACK_CONFIG)
    83. 7.83 (EDh) MFR_SPECIFIC_29 (MISC_OPTIONS)
    84. 7.84 (EEh) MFR_SPECIFIC_30 (PIN_DETECT_OVERRIDE)
    85. 7.85 (EFh) MFR_SPECIFIC_31 (DEVICE_ADDRESS)
    86. 7.86 (F0h) MFR_SPECIFIC_32 (NVM_CHECKSUM)
    87. 7.87 (F1h) MFR_SPECIFIC_33 (SIMULATE_FAULT)
    88. 7.88 (FAh) MFR_SPECIFIC_42 (PASSKEY)
    89. 7.89 (FBh) MFR_SPECIFIC_43 (EXT_WRITE_PROTECT)
    90. 7.90 (FCh) MFR_SPECIFIC_44 (FUSION_ID0)
    91. 7.91 (FDh) MFR_SPECIFIC_45 (FUSION_ID1)
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1  Custom Design With WEBENCH® Tools
        2. 8.2.2.2  Switching Frequency
        3. 8.2.2.3  Output Voltage Setting (VSEL Pin)
        4. 8.2.2.4  Compensation Selection (MSEL1 Pin)
        5. 8.2.2.5  Output Capacitor Selection
          1. 8.2.2.5.1 Output Voltage Ripple
        6. 8.2.2.6  Input Capacitor Selection
        7. 8.2.2.7  Soft Start, Overcurrent Protection, and Stacking Configuration (MSEL2 Pin)
        8. 8.2.2.8  Enable and UVLO
        9. 8.2.2.9  ADRSEL
        10. 8.2.2.10 BCX_CLK and BCX_DAT
      3. 8.2.3 Application Curves
    3. 8.3 Two-Phase Application
      1. 8.3.1 Design Requirements
      2. 8.3.2 Two-Phase Detailed Design Procedure
        1. 8.3.2.1  Switching Frequency
        2. 8.3.2.2  Output Voltage Setting (VSEL Pin)
        3. 8.3.2.3  Compensation Selection (MSEL1 Pin)
        4. 8.3.2.4  Output Capacitor Selection
        5. 8.3.2.5  Input Capacitor Selection
        6. 8.3.2.6  GOSNS/Loop Follower Pin of Loop Follower Devices
        7. 8.3.2.7  Soft Start, Overcurrent Protection, and Stacking Configuration (MSEL2 Pin)
        8. 8.3.2.8  Enable, UVLO
        9. 8.3.2.9  VSHARE Pin
          1. 8.3.2.9.1 ADRSEL Pin
        10. 8.3.2.10 SYNC Pin
        11. 8.3.2.11 VOSNS Pin of Loop Follower Devices
        12. 8.3.2.12 Unused Pins of Loop Follower Devices
      3. 8.3.3 Two-Phase Application Curves
    4. 8.4 Power Supply Recommendations
    5. 8.5 Layout
      1. 8.5.1 Layout Guidelines
      2. 8.5.2 Layout Example
        1. 8.5.2.1 Thermal Performance on the TI EVM
  10. 9 Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 Third-Party Products Disclaimer
      2. 9.1.2 Development Support
        1. 9.1.2.1 Texas Instruments Fusion Digital Power Designer
        2. 9.1.2.2 Custom Design With WEBENCH® Tools
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

6.5.1 Supported PMBus Commands

The commands listed in Table 6-6 are implemented as described to conform to the PMBus 1.3 specification. Table 6-6 also lists the default for the bit behavior and register values.

Table 6-6 Supported PMBus Commands and Default Values
CMD CODE (HEX)COMMAND NAME (PMBus 1.3 SPEC)DEFAULT VALUE
01hOPERATION04h
02hON_OFF_CONFIG17h
03hCLEAR_FAULTSn/a
04hPHASEFFh
10hWRITE_PROTECT00h
15hSTORE_USER_ALLn/a
16hRESTORE_USER_ALLn/a
19hCAPABILITYD0h
1BhSMBALERT_MASKn/a
20hVOUT_MODE97h
21hVOUT_COMMAND0266h
22hVOUT_TRIM0000h
24hVOUT_MAX0300h
25hVOUT_MARGIN_HIGH021Ah
26hVOUT_MARGIN_LOW01E6h
27hVOUT_TRANSITION_RATEE010h
29hVOUT_SCALE_LOOPC840h
2BhVOUT_MIN0100h
33hFREQUENCY_SWITCH028Ah
35hVIN_ONF00Bh
36hVIN_OFFF00Ah
37hINTERLEAVE0020h
38hIOUT_CAL_GAINC880h
39hIOUT_CAL_OFFSETE000h
40hVOUT_OV_FAULT_LIMIT024Ch
41hVOUT_OV_FAULT_RESPONSEBDh
42hVOUT_OV_WARN_LIMIT022Eh
43hVOUT_UV_WARN_LIMIT01D2h
44hVOUT_UV_FAULT_LIMIT01B3h
45hVOUT_UV_FAULT_RESPONSEBEh
46hIOUT_OC_FAULT_LIMITF068h
47hIOUT_OC_FAULT_RESPONSEFFh
4AhIOUT_OC_WARN_LIMITF050h
4FhOT_FAULT_LIMIT0096h
50hOT_FAULT_RESPONSEBCh
51hOT_WARN_LIMIT007Dh
55hVIN_OV_FAULT_LIMIT0015h
56hVIN_OV_FAULT_RESPONSE3Ch
58hVIN_UV_WARN_LIMITF00Ah
60hTON_DELAYF800h
61hTON_RISEF00Ch
62hTON_MAX_FAULIT_LIMITF800h
63hTON_MAX_FAULT_RESPONSE3Bh
64hTOFF_DELAYF800h
65hTOFF_FALLF002h
78hSTATUS_BYTE00h
79hSTATUS_WORD00h
7AhSTATUS_VOUT00h
7BhSTATUS_IOUT00h
7ChSTATUS_INPUT00h
7DhSTATUS_TEMPERATURE00h
7EhSTATUS_CML00h
7FhSTATUS_OTHER00h
80hSTATUS_MFR_SPECIFIC00h
88hREAD_VINn/a
8BhREAD_VOUTn/a
8ChREAD_IOUTn/a
8DhREAD_TEMPERATURE_1n/a
98hPMBUS_REVISION33h
99hMFR_ID00 54 49h
9AhMFR_MODEL00 00 00h
9BhMFR_REVISION00 00 00h
9EhMFR_SERIAL00 00 00h
ADhIC_DEVICE_ID54 49 54 6D 24 62h
AEhIC_DEVICE_REV41 00h
B1hUSER_DATA_01 (COMPENSATION_CONFIG)12 40 42 29 04h
B5hUSER_DATA_05 (POWER_STAGE_CONFIG)70h
D0hMFR_SPECIFIC_00 (TELEMETRY_CONFIG)03 03 03 03 00 03h
DAhMFR_SPECIFIC_10 (READ_ALL)n/a
DBhMFR_SPECIFIC_11 (STATUS_ALL)n/a
E3h MFR_SPECIFIC_19 (PGOOD_CONFIG) 009Fh
E4hMFR_SPECIFIC_20 (SYNC_CONFIG)F0h
EChMFR_SPECIFIC_28 (STACK_CONFIG)0000h
EDhMFR_SPECIFIC_29 (MISC_OPTIONS)0000h
EEhMFR_SPECIFIC_30 (PIN_DETECT_OVERRIDE)1F2Fh
EFhMFR_SPECIFIC_31 (DEVICE_ADDRESS)24h
F0hMFR_SPECIFIC_32 (NVM_CHECKSUM)F3B4h
F1hMFR_SPECIFIC_33 (SIMULATE FAULTS)0000h
FAh MFR_SPECIFIC_42 (PASSKEY) 0000h
FBh MFR_SPECIFIC_43 (EXT_WRITE_PROTECT) 0000h
FChMFR_SPECIFIC_44 (FUSION_ID0)02C0h
FDhMFR_SPECIFIC_45 (FUSION_ID1)54 49 4C 4F 43 4Bh