ZHCSGZ0B October   2017  – November 2017 TPS23525

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     Device Images
      1.      简化电路原理图
  4. 4 修订历史记录
  5. 5 Pin Configuration and Functions
    1.     Pin 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 Switching Characteristics
    7. 6.7 Typical Characteristics
  7. 7 Parameter Measurement Information
    1. 7.1 Relationship between Sense Voltage, Gate Current, and Timer
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Current Limit
        1. 8.3.1.1 Programming the CL Switch-Over Threshold
        2. 8.3.1.2 Programming CL1
        3. 8.3.1.3 Programming CL2
        4. 8.3.1.4 Computing the Fast Trip Threshold
      2. 8.3.2 Soft Start Disconnect
      3. 8.3.3 Timer
      4. 8.3.4 OR-ing
    4. 8.4 Device Functional Modes
      1. 8.4.1 OFF State
      2. 8.4.2 Insertion Delay State
      3. 8.4.3 Start-up State
      4. 8.4.4 Normal Operation State
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1  Selecting RSNS
        2. 9.2.2.2  Selecting Soft Start Setting: CSS and CSS,VEE
        3. 9.2.2.3  Selecting VDS Switch Over Threshold
        4. 9.2.2.4  Timer Selection
        5. 9.2.2.5  MOSFET Selection and SOA Checks
        6. 9.2.2.6  Input Cap, Input TVS, and OR-ing FET selection
        7. 9.2.2.7  EMI Filter Consideration
        8. 9.2.2.8  Under Voltage and Over Voltage Settings
        9. 9.2.2.9  Choosing RVCC and CVCC
        10. 9.2.2.10 Power Good Interface to Downstream DC/DC
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12器件和文档支持
    1. 12.1 器件支持
      1. 12.1.1 第三方产品免责声明
    2. 12.2 文档支持
      1. 12.2.1 相关文档
    3. 12.3 接收文档更新通知
    4. 12.4 社区资源
    5. 12.5 商标
    6. 12.6 静电放电警告
    7. 12.7 Glossary
  13. 13机械、封装和可订购信息

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

9.2.3 Application Curves

TPS23525 HotPlug_54V.png
No Load, Scope GND = -48V_A
Figure 15. Start Up (Vin = 54 V)
TPS23525 HotPlug_38V.png
No Load, Scope GND = -48V_A
Figure 17. Start Up (Vin = 38 V)
TPS23525 HotPlug2_54V_54V.png
VinA = 54 V, VinB = 54 V, No Load, Scope GND = RTN
Figure 19. Hot Plug Channel A and B Together
TPS23525 HotPlug_After_5A.png
VinA = 54 V; VinB = 38 V, Scope GND = RTN, Iload = 5 A
Figure 21. Hot Plug A after B
TPS23525 HotPlug_After_5A3.png
VinA = 54 V; VinB = 38 V, Scope GND = RTN, Iload = 5 A
Figure 23. Hot Plug A after B
TPS23525 HotShort_after54V2.png
Scope GND = -48V_B, No Load, After Inductor
Figure 25. Output Hot Short (VinB = 54 V)
TPS23525 HotShort_after_54V2.png
Scope GND = -48V_B, 5A Load, Zoomed in
Figure 27. Output Hot Short (VinB = 54 V)
TPS23525 HotShort_after_60Va.png
Scope GND = -48V_B, 5-A Load, Zoomed In
Figure 29. Output Hot Short (VinB = 60 V)
TPS23525 LoadStepOC.png
Scope GND = -48V_A
Figure 31. Load Step Overcurrent
TPS23525 StartIntoShort2.png
Scope Gnd = -48V_A, Vin = 54 V
Figure 33. Start Into Short
TPS23525 BrownOut.png
Scope GND = -48V_A, Iload = 5 A
Figure 35. 1-ms Brown Out
TPS23525 SupplySwitch.png
VinB = 53 V, Iload = 5 A, Scope GND = RTN
Figure 37. Supply Switch Over (Raise VinA)
TPS23525 VinShortDual.png
VinA = 54.5 V; VinB = 54 V, Iload = 5 A, Scope GND=RTN
Figure 39. VinA Short
TPS23525 VinUnplug_Dual.png
VinA = 54.5 V; VinB = 54 V, Iload = 5 A, Scope GND=RTN
Figure 41. Unplug VinA
TPS23525 ReverseHP_single.png
VinB Floating
Figure 43. Plug in VinA backwards
TPS23525 UV_OV_Falling.png
Scope GND = -48V_A, No Load
Figure 45. Under Voltage and Over Voltage (Falling)
TPS23525 Neg2kV_LightningStrike2.png
Scope GND = RTN, 5-A load, Per IEC61000-4-5
Figure 47. -2 kV (2 Ω) Lightning Surge (zoomed in)
TPS23525 Pos2kV_LightningStrike2.png
Scope GND = RTN, 5-A load, Per IEC61000-4-5
Figure 49. +2 kV (2 Ω) Lightning Surge (zoomed in)
TPS23525 LargeL_HotShort.png
Lin = 20 µH, Scope GND = -48V_A
Figure 51. Hot Short (Vin = 54 V)
TPS23525 LargeL_LoadStep.png
Lin = 20 µH, Scope GND = -48V_A,
Figure 53. Load Step (0 A - 11 A)
TPS23525 LargeL_StartIntoShort.png
Lin = 20 µH, Scope GND = -48V_A
Figure 55. Start Into Short
TPS23525 HotPlug_54Va.png
No Load, Scope GND = -48V_A
Figure 16. Start Up (Vin = 54 V)
TPS23525 HotPlug_60V.png
No Load, Scope GND = -48V_A
Figure 18. Start Up (Vin = 60 V)
TPS23525 HotPlug2_54_5V_54V.png
VinA = 54.5 V, VinB = 54 V, No Load, Scope GND = RTN
Figure 20. Hot Plug Channel A and B Together
TPS23525 HotPlug_After_5A2.png
VinA = 54 V; VinB = 38 V, Scope GND = RTN, Iload = 5 A
Figure 22. Hot Plug A after B
TPS23525 HotPlug_After_NoLoad.png
VinA = 54.5 V; VinB = 54 V, Scope GND = RTN, No load
Figure 24. Hot Plug A after B
TPS23525 HotShort_after_54V.png
Scope GND = -48V_B, 5-A Load, After Inductor
Figure 26. Output Hot Short (VinB = 54 V)
TPS23525 HotShort_after_60V.png
Scope GND = -48V_B, 5-A Load
Figure 28. Output Hot Short (VinB = 60 V)
TPS23525 GradualOC.png
Scope GND = -48V_A
Figure 30. Gradual Over Current (VinA = 54 V)
TPS23525 StartIntoShort.png
Scope Gnd = -48V_A, Vin = 54 V
Figure 32. Start Into Short
TPS23525 RemoveShort.png
Scope Gnd = -48V_A, Vin = 54 V
Figure 34. Apply Short and Remove Short
TPS23525 BrownOut2.png
Scope GND = -48V_A, Iload = 5 A
Figure 36. 1-ms Brown Out
TPS23525 SupplySwitch2.png
VinB = 53 V (Raise VinA), Scope GND = RTN, Iload = 5 A
Figure 38. Supply Switch Over (zoomed in)
TPS23525 VinShortDual2.png
VinA = 54.5 V; VinB = 54 V, Iload = 5 A, Scope GND=RTN
Figure 40. VinA Short
TPS23525 ReverseHP_Dual.png
VinB = 60 V
Figure 42. Plug in VinA backwards
TPS23525 UV_OV_Rising.png
Scope GND = -48V_A, No Load
Figure 44. Under Voltage and Over Voltage (Rising)
TPS23525 Neg2kV_LightningStrike.png
Scope GND = RTN, 5-A load, Per IEC61000-4-5
Figure 46. -2 kV (2 Ω) Lightning Surge
TPS23525 Pos2kV_LightningStrike.png
Scope GND = RTN, 5-A load, Per IEC61000-4-5
Figure 48. +2 kV (2 Ω) Lightning Surge (zoomed in)
TPS23525 largeL_HotPlug.png
Lin = 20 µH, Scope GND = -48V_A
Figure 50. Start-Up (Vin = 54 V)
TPS23525 LargeL_HotShort38.png
Lin = 20 µH, Scope GND = -48V_A
Figure 52. Hot Short (Vin = 38 V)
TPS23525 LargeL_OC.png
Lin = 20 µH, Scope GND = -48V_A
Figure 54. Load Step Into Overcurrent
TPS23525 LargeL_BrownOut.png
Lin = 20 µH, Scope GND = -48V_A
Figure 56. 1-ms Brown Out