JAJSP58 September   2022 TPS544C26

ADVANCE INFORMATION  

  1. 1 特長
  2. 2 アプリケーション
  3. 3 概要
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1  Internal VCC LDO and Using an External Bias on VCC/VDRV Pin
      2. 7.3.2  Input Undervoltage Lockout (UVLO)
        1. 7.3.2.1 Fixed VCC UVLO
        2. 7.3.2.2 Fixed VDRV UVLO
        3. 7.3.2.3 Programmable PVIN UVLO
        4. 7.3.2.4 Enable
      3. 7.3.3  Differential Remote Sense and Internal Feedback Divider
      4. 7.3.4  Set the Output Voltage and VID Table
      5. 7.3.5  Startup and Shutdown
      6. 7.3.6  Dynamic Voltage Slew Rate
      7. 7.3.7  Adaptive Voltage Positioning (Droop) and DC Load Line (DCLL)
      8. 7.3.8  Loop Compensation
      9. 7.3.9  Set Switching Frequency
      10. 7.3.10 Switching Node (SW)
      11. 7.3.11 Overcurrent Limit and Low-side Current Sense
      12. 7.3.12 Negative Overcurrent Limit
      13. 7.3.13 Zero-Crossing Detection
      14. 7.3.14 Input Overvoltage Protection
      15. 7.3.15 Output Overvoltage and Undervoltage Protection
      16. 7.3.16 Overtemperature Protection
      17. 7.3.17 VR Ready
      18. 7.3.18 Catastrophic Fault Alert: CAT_FAULT#
      19. 7.3.19 Telemetry
      20. 7.3.20 I2C Interface General Description
        1. 7.3.20.1 Setting the I2C Address
        2. 7.3.20.2 I2C Write Protection
        3. 7.3.20.3 I2C Registers With Special Handling
    4. 7.4 Device Functional Modes
      1. 7.4.1 Forced Continuous-Conduction Mode
      2. 7.4.2 Auto-Skip Eco-mode™ Light Load Operation
    5. 7.5 Programming
      1. 7.5.1 Supported I2C Registers
      2. 7.5.2 Support of Intel SVID Interface
    6. 7.6 Register Maps
      1. 7.6.1  (01h) OPERATION
      2. 7.6.2  (02h) ON_OFF_CONFIG
      3. 7.6.3  (03h) CLEAR_FAULTS
      4. 7.6.4  (15h) STORE_USER_ALL
      5. 7.6.5  (16h) RESTORE_USER_ALL
      6. 7.6.6  (33h) FREQUENCY_SWITCH
      7. 7.6.7  (35h) VIN_ON
      8. 7.6.8  (36h) VIN_OFF
      9. 7.6.9  (40h) VOUT_OV_FAULT_LIMIT
      10. 7.6.10 (41h) VOUT_OV_FAULT_RESPONSE
      11. 7.6.11 (42h) VOUT_OV_WARN_LIMIT
      12. 7.6.12 (43h) VOUT_UV_WARN_LIMIT
      13. 7.6.13 (44h) VOUT_UV_FAULT_LIMIT
      14. 7.6.14 (45h) VOUT_UV_FAULT_RESPONSE
      15. 7.6.15 (46h) IOUT_OC_FAULT_LIMIT
      16. 7.6.16 (4Fh) OT_FAULT_LIMIT
      17. 7.6.17 (50h) OT_FAULT_RESPONSE
      18. 7.6.18 (51h) OT_WARN_LIMIT
      19. 7.6.19 (55h) VIN_OV_FAULT_LIMIT
      20. 7.6.20 (60h) TON_DELAY
      21. 7.6.21 (61h) TON_RISE
      22. 7.6.22 (64h) TOFF_DELAY
      23. 7.6.23 (65h) TOFF_FALL
      24. 7.6.24 (6Bh) PIN_OP_WARN_LIMIT
      25. 7.6.25 (7Ah) STATUS_VOUT
      26. 7.6.26 (7Bh) STATUS_IOUT
      27. 7.6.27 (7Ch) STATUS_INPUT
      28. 7.6.28 (7Dh) STATUS_TEMPERATURE
      29. 7.6.29 (80h) STATUS_MFR_SPECIFIC
      30. 7.6.30 (88h) READ_VIN
      31. 7.6.31 (89h) READ_IIN
      32. 7.6.32 (8Bh) READ_VOUT
      33. 7.6.33 (8Ch) READ_IOUT
      34. 7.6.34 (8Dh) READ_TEMPERATURE_1
      35. 7.6.35 (97h) READ_PIN
      36. 7.6.36 (A0h) SYS_CFG_USER1
      37. 7.6.37 (A2h) I2C_ADDR
      38. 7.6.38 (A3h) SVID_ADDR
      39. 7.6.39 (A4h) IMON_CAL
      40. 7.6.40 (A5h) IIN_CAL
      41. 7.6.41 (A6h) VOUT_CMD
      42. 7.6.42 (A7h) VID_SETTING
      43. 7.6.43 (A8h) I2C_OFFSET
      44. 7.6.44 (A9h) COMP1_MAIN
      45. 7.6.45 (AAh) COMP2_MAIN
      46. 7.6.46 (ABh) COMP1_ALT
      47. 7.6.47 (ACh) COMP2_ALT
      48. 7.6.48 (ADh) COMP3
      49. 7.6.49 (AFh) DVS_CFG
      50. 7.6.50 (B0h) DVID_OFFSET
      51. 7.6.51 (B1h) REG_LOCK
      52. 7.6.52 (B3h) PIN_SENSE_RES
      53. 7.6.53 (B4h) IOUT_NOC_LIMIT
      54. 7.6.54 (B5h) USER_DATA_01
      55. 7.6.55 (B6h) USER_DATA_02
      56. 7.6.56 (BAh) STATUS1_SVID
      57. 7.6.57 (BBh) STATUS2_SVID
      58. 7.6.58 (BCh) CAPABILITY
      59. 7.6.59 (BDh) EXT_CAPABILITY_VIDOMAX_H
      60. 7.6.60 (BEh) VIDOMAX_L
      61. 7.6.61 (C0h) ICC_MAX
      62. 7.6.62 (C1h) TEMP_MAX
      63. 7.6.63 (C2h) PROTOCOL_ID_SVID
      64. 7.6.64 (C6h) VENDOR_ID
      65. 7.6.65 (C8h) PRODUCT_ID
      66. 7.6.66 (C9h) PRODUCT_REV_ID
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Application
      2. 8.2.2 Design Requirements
      3. 8.2.3 Detailed Design Procedure
        1. 8.2.3.1 Inductor Selection
        2. 8.2.3.2 Input Capacitor Selection
        3. 8.2.3.3 Output Capacitor Selection
        4. 8.2.3.4 VCC/VRDV Bypass Capacitor
        5. 8.2.3.5 BOOT Capacitor Selection
        6. 8.2.3.6 RSENSE Selection
        7. 8.2.3.7 VINSENP and VINSENN Capacitor Selection
        8. 8.2.3.8 VRRDY Pullup Resistor Selection
        9. 8.2.3.9 I2C Address Resistor Selection
      4. 8.2.4 Application Curves
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
        1. 8.4.2.1 Thermal Performance on TPS544C26EVM
  9. 9 Device and Documentation Support
    1. 9.1 Documentation Support
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 サポート・リソース
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  10. 10Mechanical, Packaging, and Orderable Information
    1. 10.1 Tape and Reel Information

パッケージ・オプション

メカニカル・データ（パッケージ｜ピン）
サーマルパッド・メカニカル・データ
発注情報

7.3.20 I2C Interface General Description

The TPS544C26 device offers both I2C interface and SVID interface for programming and telemetry report. The device supports a group of I2C registers which is listed in . The device also supports a subset of the SVID registers listed in .

For I2C interface, the TPS544C26 device supports minimum 50 kHz and maximum 1 MHz operating frequency range, with the support of the Standard-mode, Fast-mode, and Fast-mode Plus bus timing requirements.

The high threshold of I2C SCL and SDA pin is 0.585 V typical, and the low threshold of I2C SCL and SDA pin is 0.515 V typical.

The TPS544C26 device contains nonvolatile memory that is used to store user-accessible configurations. The settings programmed into the device are not automatically saved into this nonvolatile memory. The (15h) STORE_USER_ALL command must be used to commit the current I2C settings to nonvolatile memory as device defaults. For example, after importing a group of settings from a user specific configuration file the (15h) STORE_USER_ALL command must be used to save the settings into the nonvolatile memory. The settings that are capable of being stored in nonvolatile memory are noted in their detailed descriptions.

Note: Per I2C Standard, the packet error checking (PEC) feature is not supported by TPS544C26. A command with PEC can result in unexpected communication error.