ZHCSIW7B October 2018 – January 2020 TPS25982
PRODUCTION DATA.
- 1 特性
- 2 应用
- 3 说明
- 4 修订历史记录
- 5 器件比较表
- 6 Pin Configuration and Functions
- 7 Specifications
-
8 Detailed Description
- 8.1 Overview
- 8.2 Functional Block Diagram
- 8.3 Feature Description
- 8.4 Fault Response
- 8.5 Device Functional Modes
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9 Application and Implementation
- 9.1 Application Information
- 9.2
Typical Application: Standby Power Rail Protection in Datacenter Servers
- 9.2.1 Design Requirements
- 9.2.2
Detailed Design Procedure
- 9.2.2.1 Device Selection
- 9.2.2.2 Setting the Current Limit Threshold: RILIM Selection
- 9.2.2.3 Setting the Undervoltage Lockout Set Point
- 9.2.2.4 Choosing the Current Monitoring Resistor: RIMON
- 9.2.2.5 Setting the Output Voltage Ramp Time (TdVdt)
- 9.2.2.6 Setting the Load Handshake (LDSTRT) Delay
- 9.2.2.7 Setting the Transient Overcurrent Blanking Interval (tITIMER)
- 9.2.2.8 Setting the Auto-Retry Delay and Number of Retries
- 9.2.3 Application Curves
- 9.3 System Examples
- 10Power Supply Recommendations
- 11Layout
- 12器件和文档支持
- 13机械、封装和可订购信息
7.8 Typical Characteristics
A.
Figure 2. ON Resistance vs Temperature 
A.
Figure 4. Supply OVP Threshold vs Temperature | TPS259822x Variants |
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Figure 6. Supply OVP Threshold vs Temperature | TPS259824x Variants |
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Figure 8. Quiescent Current vs Temperature | VENUVLO = 2 V, OUT = Open |
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Figure 10. Shut-Down Current vs Temperature | VENUVLO = 1 V, OUT = Open |
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Figure 12. Output Current Limit (ILIM) vs RILIM 
A.
Figure 14. Output Current Monitor Gain (GIMON) Accuracy | Across Process, Voltage, Temperature Corners, Normalized to mean value of 246 μA/A |
A.
Figure 16. ITIMER Voltage Threshold Delta vs Temperature 
A.
Figure 18. LDSTRT Charging Current vs Temperature 
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Figure 20. DVDT Charging Current vs Temperature 
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Figure 22. RETRY_DLY Oscillator Hysteresis vs Temperature 
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Figure 24. NRETRY Oscillator Hysteresis vs Temperature 
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Figure 26. Thermal Shutdown Plot - Inrush/Overload 
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Figure 3. Supply UVP Threshold vs Temperature 
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Figure 5. Supply OVP Threshold vs Temperature | TPS259823x Variants |
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Figure 7. EN/UVLO Threshold vs Temperature 
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Figure 9. EN/UVLO Falling Threshold for Lowest Current Consumption 
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Figure 11. Deep Shut-Down Current vs Temperature | VENUVLO = 0 V, OUT = Open |
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Figure 13. Output Current Limit (ILIM) Accuracy | Across Process, Voltage, Temperature Corners |
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Figure 15. Power Good Output Voltage (De-asserted State) vs Temperature | VIN = 0 V |
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Figure 17. ITIMER Discharge Current vs Temperature 
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Figure 19. LDSTRT Threshold Voltage vs Temperature 
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Figure 21. RETRY_DLY Bias Current vs Temperature 
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Figure 23. NRETRY Bias Current vs Temperature 
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Figure 25. Thermal Shutdown Plot - Steady State 
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Figure 27. Hotplug | CIN = 1 μF | COUT = 220 μF | CdVdt = 3.3 nF |
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Figure 29. Startup With EN Into Resistive Load - dVdt Limited | COUT = 220 μF | CdVdt = 3.3 nF | ROUT = 6 Ω |
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Figure 31. Current Limit Without Transient Overcurrent Blanking | RILIM = 100 Ω | CITIMER = Open |
A.
Figure 33. Current Limit Followed By Thermal Shutdown - Latch-off | RILIM = 100 Ω | CITIMER = 4.7 nF | RETRY_DLY =
Short to GND |
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Figure 35. Circuit Breaker With Transient Overcurrent Blanking | RILIM = 100 Ω | CITIMER = 4.7 nF | |
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Figure 37. Power Up Into Output Short-Circuit | RILIM = 100 Ω | ||
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Figure 39. Output Hard Short-Circuit While ON (Zoomed In) | RILIM = 100 Ω |
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Figure 41. Supply Line Transient Immunity - Adjacent Load Hot Unplug | RILIM = 511 Ω |
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Figure 28. Startup With EN - dVdt Limited | COUT = 220 μF | CdVdt = 10 nF | ROUT = Open |
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Figure 30. Overvoltage Protection | TPS259824x (16.7-V OVP variant) |
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Figure 32. Current Limit With Transient Overcurrent Blanking | RILIM = 100 Ω | CITIMER = 4.7 nF |
A.
Figure 34. Current Limit Followed By Thermal Shutdown - Auto-Retry | RILIM = 100 Ω | CITIMER = 4.7 nF | CRETRY_DLY = 1 nF,
CNRETRY = Open |
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Figure 36. Circuit Breaker - Auto-Retry | RILIM = 100 Ω | CITIMER = 4.7 nF | CRETRY_DLY = Open,
CNRETRY = Open |
A.
Figure 38. Output Hard Short-Circuit While ON | RILIM = 100 Ω | ||
A.
Figure 40. Supply Line Transient Immunity - Input Voltage Step | RILIM = 332 Ω |