ZHCSIK3A July   2018  – January 2025 TPS650861

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  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: Total Current Consumption
    6. 5.6  Electrical Characteristics: Reference and Monitoring System
    7. 5.7  Electrical Characteristics: Buck Controllers
    8. 5.8  Electrical Characteristics: Synchronous Buck Converters
    9. 5.9  Electrical Characteristics: LDOs
    10. 5.10 Electrical Characteristics: Load Switches
    11. 5.11 Digital Signals: I2C Interface
    12. 5.12 Digital Input Signals (CTLx)
    13. 5.13 Digital Output Signals (IRQB, GPOx)
    14. 5.14 Timing Requirements
    15. 5.15 Switching Characteristics
    16. 5.16 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1  Overview
    2. 6.2  Functional Block Diagram
    3. 6.3  Programming the TPS650861
    4. 6.4  SMPS Voltage Regulators
      1. 6.4.1 Controller Overview
      2. 6.4.2 Converter Overview
      3. 6.4.3 DVS
      4. 6.4.4 Decay
      5. 6.4.5 Current Limit
    5. 6.5  LDOs and Load Switches
      1. 6.5.1 VTT LDO
      2. 6.5.2 LDOA1–LDOA3
      3. 6.5.3 Load Switches
    6. 6.6  Power Goods (PGOOD or PG) and GPOs
    7. 6.7  One-Time Programmable Memory
    8. 6.8  Power Sequencing and VR Control
      1. 6.8.1 CTLx Sequencing
      2. 6.8.2 PG Sequencing
      3. 6.8.3 Enable Delay
      4. 6.8.4 Power-Up Sequence
      5. 6.8.5 Power-Down Sequence
      6. 6.8.6 Sleep State Entry and Exit
      7. 6.8.7 Emergency Shutdown
    9. 6.9  Device Functional Modes
      1. 6.9.1 Off Mode
      2. 6.9.2 Standby Mode
      3. 6.9.3 Active Mode
    10. 6.10 I2C Interface
      1. 6.10.1 F/S-Mode Protocol
    11. 6.11 I2C Address: 0x5E Register Maps
      1. 6.11.1  Register Map Summary
      2. 6.11.2  DEVICEID1: 1st PMIC Device and Revision ID Register (offset = 00h) [reset = X]
      3. 6.11.3  DEVICEID2: 2nd PMIC Device and Revision ID Register (offset = 01h) [reset = X]
      4. 6.11.4  IRQ: PMIC Interrupt Register (offset = 02h) [reset = 0000 0000]
      5. 6.11.5  IRQ_MASK: PMIC Interrupt Mask Register (offset = 03h) [reset = 1111 1111]
      6. 6.11.6  PMICSTAT: PMIC Status Register (offset = 04h) [reset = 0000 0000]
      7. 6.11.7  SHUTDNSRC: PMIC Shut-Down Event Register (offset = 05h) [reset = 0000 0000]
      8. 6.11.8  BUCK1CTRL: BUCK1 Control Register (offset = 20h) [reset = X]
      9. 6.11.9  BUCK2CTRL: BUCK2 Control Register (offset = 21h) [reset = X]
      10. 6.11.10 BUCK3DECAY: BUCK3 Decay Control Register (offset = 22h) [reset = X]
      11. 6.11.11 BUCK3VID: BUCK3 VID Register (offset = 23h) [reset = X]
      12. 6.11.12 BUCK3SLPCTRL: BUCK3 Sleep Control VID Register (offset = 24h) [reset = X]
      13. 6.11.13 BUCK4CTRL: BUCK4 Control Register (offset = 25h) [reset = X]
      14. 6.11.14 BUCK5CTRL: BUCK5 Control Register (offset = 26h) [reset = X]
      15. 6.11.15 BUCK6CTRL: BUCK6 Control Register (offset = 27h) [reset = X]
      16. 6.11.16 LDOA2CTRL: LDOA2 Control Register (offset = 28h) [reset = X]
      17. 6.11.17 LDOA3CTRL: LDOA3 Control Register (offset = 29h) [reset = X]
      18. 6.11.18 DISCHCTRL1: 1st Discharge Control Register (offset = 40h) [reset = X]
      19. 6.11.19 DISCHCTRL2: 2nd Discharge Control Register (offset = 41h) [reset = X]
      20. 6.11.20 DISCHCTRL3: 3rd Discharge Control Register (offset = 42h) [reset = X]
      21. 6.11.21 PG_DELAY1: 1st Power Good Delay Register (offset = 43h) [reset = X]
      22. 6.11.22 FORCESHUTDN: Force Emergency Shutdown Control Register (offset = 91h) [reset = 0000 0000]
      23. 6.11.23 BUCK1SLPCTRL: BUCK1 Sleep Control Register (offset = 92h) [reset = X]
      24. 6.11.24 BUCK2SLPCTRL: BUCK2 Sleep Control Register (offset = 93h) [reset = X]
      25. 6.11.25 BUCK4VID: BUCK4 VID Register (offset = 94h) [reset = X]
      26. 6.11.26 BUCK4SLPVID: BUCK4 Sleep VID Register (offset = 95h) [reset = X]
      27. 6.11.27 BUCK5VID: BUCK5 VID Register (offset = 96h) [reset = X]
      28. 6.11.28 BUCK5SLPVID: BUCK5 Sleep VID Register (offset = 97h) [reset = X]
      29. 6.11.29 BUCK6VID: BUCK6 VID Register (offset = 98h) [reset = X]
      30. 6.11.30 BUCK6SLPVID: BUCK6 Sleep VID Register (offset = 99h) [reset = X]
      31. 6.11.31 LDOA2VID: LDOA2 VID Register (offset = 9Ah) [reset = X]
      32. 6.11.32 LDOA3VID: LDOA3 VID Register (offset = 9Bh) [reset = X]
      33. 6.11.33 BUCK123CTRL: BUCK1-3 Control Register (offset = 9Ch) [reset = X]
      34. 6.11.34 PG_DELAY2: 2nd Power Good Delay Register (offset = 9Dh) [reset = X]
      35. 6.11.35 SWVTT_DIS: SWVTT Disable Register (offset = 9Fh) [reset = X]
      36. 6.11.36 I2C_RAIL_EN1: 1st VR Pin Enable Override Register (offset = A0h) [reset = X]
      37. 6.11.37 I2C_RAIL_EN2/GPOCTRL: 2nd VR Pin Enable Override and GPO Control Register (offset = A1h) [reset = X]
      38. 6.11.38 PWR_FAULT_MASK1: 1st VR Power Fault Mask Register (offset = A2h) [reset = X]
      39. 6.11.39 PWR_FAULT_MASK2: 2nd VR Power Fault Mask Register (offset = A3h) [reset = X]
      40. 6.11.40 GPO1PG_CTRL1: 1st GPO1 PG Control Register (offset = A4h) [reset = X]
      41. 6.11.41 GPO1PG_CTRL2: 2nd GPO1 PG Control Register (offset = A5h) [reset = X]
      42. 6.11.42 GPO4PG_CTRL1: 1st GPO4 PG Control Register (offset = A6h) [reset = X]
      43. 6.11.43 GPO4PG_CTRL2: 2nd GPO4 PG Control Register (offset = A7h) [reset = X]
      44. 6.11.44 GPO2PG_CTRL1: 1st GPO2 PG Control Register (offset = A8h) [reset = X]
      45. 6.11.45 GPO2PG_CTRL2: 2nd GPO2 PG Control Register (offset = A9h) [reset = X]
      46. 6.11.46 GPO3PG_CTRL1: 1st GPO3 PG Control Register (offset = AAh) [reset = X]
      47. 6.11.47 GPO3PG_CTRL2: 2nd GPO3 PG Control Register (offset = ABh) [reset = X]
      48. 6.11.48 MISCSYSPG Register (offset = ACh) [reset = X]
        1. 6.11.48.1 VTT_DISCH_CTRL Register (offset = ADh) [reset = X]
      49. 6.11.49 LDOA1_SWB2_CTRL: LDOA1 and SWB2 Control Register (offset = AEh) [reset = X]
      50. 6.11.50 PG_STATUS1: 1st Power Good Status Register (offset = B0h) [reset = 0000 0000]
      51. 6.11.51 PG_STATUS2: 2nd Power Good Status Register (offset = B1h) [reset = 0000 0000]
      52. 6.11.52 PWR_FAULT_STATUS1: 1st Power Fault Status Register (offset = B2h) [reset = 0000 0000]
      53. 6.11.53 PWR_FAULT_STATUS2: 2nd Power Fault Status Register (offset = B3h) [reset = 0000 0000]
      54. 6.11.54 TEMPCRIT: Temperature Fault Status Register (offset = B4h) [reset = 0000 0000]
      55. 6.11.55 TEMPHOT: Temperature Hot Status Register (offset = B5h) [reset = 0000 0000]
      56. 6.11.56 OC_STATUS: Overcurrent Fault Status Register (offset = B6h) [reset = 0000 0000]
    12. 6.12 I2C Address: 0x38 Register Maps
      1. 6.12.1  Register Map Summary
      2. 6.12.2  OTP_CTRL1 (offset = 02h) [reset = 0010 0000]
      3. 6.12.3  OTP_CTRL2 (offset = 03h) [reset = X]
      4. 6.12.4  BUCK1_CTRL_EN1 (offset = 07h) [reset = X]
      5. 6.12.5  BUCK1_CTRL_EN2 (offset = 08h) [reset = X]
      6. 6.12.6  BUCK1_CTRL_EN3 (offset = 09h) [reset = X]
      7. 6.12.7  BUCK2_CTRL_EN1 (offset = 0Ah) [reset = X]
      8. 6.12.8  BUCK2_CTRL_EN2 (offset = 0Bh) [reset = X]
      9. 6.12.9  BUCK2_CTRL_EN3 (offset = 0Ch) [reset = X]
      10. 6.12.10 BUCK3_CTRL_EN1 (offset = 0Ah) [reset = X]
      11. 6.12.11 BUCK3_CTRL_EN2 (offset = 0Eh) [reset = X]
      12. 6.12.12 BUCK3_CTRL_EN3 (offset = 0Fh) [reset = X]
      13. 6.12.13 BUCK4_CTRL_EN1 (offset = 10h) [reset = X]
      14. 6.12.14 BUCK4_CTRL_EN2 (offset = 11h) [reset = X]
      15. 6.12.15 BUCK4_CTRL_EN3 (offset = 12h) [reset = X]
      16. 6.12.16 BUCK5_CTRL_EN1 (offset = 13h) [reset = X]
      17. 6.12.17 BUCK5_CTRL_EN2 (offset = 14h) [reset = X]
      18. 6.12.18 BUCK5_CTRL_EN3 (offset = 15h) [reset = X]
      19. 6.12.19 BUCK6_CTRL_EN1 (offset = 16h) [reset = X]
      20. 6.12.20 BUCK6_CTRL_EN2 (offset = 17h) [reset = X]
      21. 6.12.21 BUCK6_CTRL_EN3 (offset = 18h) [reset = X]
      22. 6.12.22 SWA1_CTRL_EN1 (offset = 19h) [reset = X]
      23. 6.12.23 SWA1_CTRL_EN2 (offset = 1Ah) [reset = X]
      24. 6.12.24 SWA1_CTRL_EN3 (offset = 1Bh) [reset = X]
      25. 6.12.25 LDOA2_CTRL_EN1 (offset = 1Ch) [reset = X]
      26. 6.12.26 LDOA2_CTRL_EN2 (offset = 1Dh) [reset = X]
      27. 6.12.27 LDOA2_CTRL_EN3 (offset = 1Eh) [reset = X]
      28. 6.12.28 LDOA3_CTRL_EN1 (offset = 1Fh) [reset = X]
      29. 6.12.29 LDOA3_CTRL_EN2 (offset = 20h) [reset = X]
      30. 6.12.30 LDOA3_CTRL_EN3 (offset = 21h) [reset = X]
      31. 6.12.31 SWB1_CTRL_EN1 (offset = 22h) [reset = X]
      32. 6.12.32 SWB1_CTRL_EN2 (offset = 23h) [reset = X]
      33. 6.12.33 SWB1_CTRL_EN3 (offset = 24h) [reset = X]
      34. 6.12.34 SWB2_LDOA1_CTRL_EN1 (offset = 25h) [reset = X]
      35. 6.12.35 SWB2_LDOA1_CTRL_EN2 (offset = 26h) [reset = X]
      36. 6.12.36 SWB2_LDOA1_CTRL_EN3 (offset = 27h) [reset = X]
      37. 6.12.37 SLP_PIN (offset = 29h) [reset = X]
      38. 6.12.38 OUTPUT_MODE (offset = 2Ah) [reset = X]
      39. 6.12.39 I2C_SLAVE_ADDR (offset = 5Fh) [reset = X]
  8. 7 Applications, Implementation, and Layout
    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 Controller Design Procedure
          1. 7.2.2.1.1 Selecting the Inductor
          2. 7.2.2.1.2 Selecting the Output Capacitors
          3. 7.2.2.1.3 Selecting the FETs
          4. 7.2.2.1.4 Bootstrap Capacitor
          5. 7.2.2.1.5 Setting the Current Limit
          6. 7.2.2.1.6 Selecting the Input Capacitors
        2. 7.2.2.2 Converter Design Procedure
          1. 7.2.2.2.1 Selecting the Inductor
          2. 7.2.2.2.2 Selecting the Output Capacitors
          3. 7.2.2.2.3 Selecting the Input Capacitors
        3. 7.2.2.3 LDO Design Procedure
      3. 7.2.3 Application Curves
      4. 7.2.4 Layout
        1. 7.2.4.1 Layout Guidelines
        2. 7.2.4.2 Layout Example
      5. 7.2.5 VIN 5-V Application
        1. 7.2.5.1 Design Requirements
        2. 7.2.5.2 Design Procedure
        3. 7.2.5.3 Application Curves
    3. 7.3 Power Supply Coupling and Bulk Capacitors
    4. 7.4 Dos and Don'ts
  9. 8 Device and Documentation Support
    1. 8.1 Device Support
      1. 8.1.1 第三方产品免责声明
      2. 8.1.2 Development Support
    2. 8.2 Documentation Support
      1. 8.2.1 Related Documentation
    3. 8.3 接收文档更新通知
    4. 8.4 支持资源
    5. 8.5 Trademarks
    6. 8.6 静电放电警告
    7. 8.7 术语表
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

1 特性

  • 两组用于为默认电压和序列进行编程的一次性可编程存储器
  • 5.6V 至 21V 的宽 VIN 范围
  • 三个采用 D-CAP2™ 拓扑的
    可变输出电压同步降压控制器
    • 使用外部 FET 的可扩展输出电流，支持可选电流限制
    • 在 0.41V 至 1.67V 之间以 10mV 为步长、在 1V 至 3.575V 之间
      以 25mV 为步长或固定 5V 输出的 I2C DVS 控制
  • 三个采用 DCS-Control 拓扑的可变输出电压同步降压转换器
    • VIN 范围为 3V 至 5.5V
    • 输出电流高达 3A
    • 在 0.425V 至 3.575V 之间以 25mV 为步长的 I2C 控制
  • 三个具有可调输出电压的 LDO 稳压器
    • LDOA1：I2C 可选电压范围为 1.35V 至 3.3V，输出电流可高达 200mA
    • LDOA2 和 LDOA3：I2C 可选电压范围为 0.7V 至 1.5V，每个输出电流可高达 600mA
  • 适用于 DDR 存储器终端的 VTT LDO
  • 三个具有压摆率控制功能的负载开关
    • 输出电流高达 300mA，压降小于标称输入电压的 1.5%
    • 输入电压为 1.8V 时，RDSON < 96mΩ
  • 5V 固定输出电压 LDO (LDO5)
    • 用于 SMPS 的栅极驱动器和用于 LDOA1 的电源
    • 可自动切换至外部 5V 降压以实现更高效率
  • 内置可通过 OTP 编程功能实现的灵活性和可配置性
    • 六个 GPI 引脚均可配置为启用（CTL1 至 CTL6）任意所选电压轨或使其进入睡眠模式（CTL3 和 CTL6）
    • 四个 GPO 引脚均可配置为指示任意所选电压轨的电源正常
    • 开漏中断输出引脚
  • I2C 接口支持标准模式 (100kHz)、快速模式 (400kHz) 和超快速模式 (1MHz)