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eFuses 和熱插拔制器

LM25066A

現行

具更高監控精度與 I2C 和 PMBus 的 2.9V 至 17-V 熱插拔控制器

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產品規格表

LM25066A

現行
產品規格表 立即訂購

產品詳細資料

FET External Vin (min) (V) 2.9 Vin (max) (V) 17 Vabsmax_cont (V) 24 Current limit (min) (A) 0.01 Current limit (max) (A) 500 Overcurrent response Circuit breaker, current limiting Fault response Auto-retry, Latch-off Soft start Adjustable Overvoltage response Cut-off Features Current monitoring, Fault output, PMBus, Power good signal Rating Catalog Device type eFuses and hot swap controllers Operating temperature range (°C) -40 to 125 Function Adjustable current limit, Current monitoring, Inrush current control, Overvoltage protection, Power good signal, Short circuit protection, Thermal shutdown
FET External Vin (min) (V) 2.9 Vin (max) (V) 17 Vabsmax_cont (V) 24 Current limit (min) (A) 0.01 Current limit (max) (A) 500 Overcurrent response Circuit breaker, current limiting Fault response Auto-retry, Latch-off Soft start Adjustable Overvoltage response Cut-off Features Current monitoring, Fault output, PMBus, Power good signal Rating Catalog Device type eFuses and hot swap controllers Operating temperature range (°C) -40 to 125 Function Adjustable current limit, Current monitoring, Inrush current control, Overvoltage protection, Power good signal, Short circuit protection, Thermal shutdown
WQFN (NHZ) 24 20 mm² 5 x 4
  • Input Voltage Range: 2.9 V to 17 V
  • I2C/SMBus Interface and PMBus Compliant Command Structure
  • Programmable 25-mV or 46-mV Current Limit Threshold
  • Configurable Circuit Breaker Protection for Hard Shorts
  • Configurable Undervoltage and Overvoltage Lockouts With Hysteresis
  • Remote Temperature Sensing With Programmable Warning and Shutdown Thresholds
  • Detection and Notification of Damaged MOSFET Condition
  • Real Time Monitoring of VIN, VOUT, IIN, PIN, VAUX With 12-Bit Resolution and 1-kHz Sampling Rate
  • Current Measurement Accuracy: ±1% Over Temperature
  • Power Measurement Accuracy: ±2% Over Temperature
  • True Input Power Measurement Using Simultaneous Sampling of VIN and IIN Accurately Averages Dynamic Power Readings
  • Averaging of VIN, IIN, PIN, and VOUT Over Programmable Interval Ranging from 0.001 to 4 Seconds
  • Programmable WARN and FAULT Thresholds with SMBA Notification
  • Black Box Capture of Telemetry Measurements and Device Status Triggered by WARN or FAULT Condition
  • 24-Lead WQFN Package
  • Input Voltage Range: 2.9 V to 17 V
  • I2C/SMBus Interface and PMBus Compliant Command Structure
  • Programmable 25-mV or 46-mV Current Limit Threshold
  • Configurable Circuit Breaker Protection for Hard Shorts
  • Configurable Undervoltage and Overvoltage Lockouts With Hysteresis
  • Remote Temperature Sensing With Programmable Warning and Shutdown Thresholds
  • Detection and Notification of Damaged MOSFET Condition
  • Real Time Monitoring of VIN, VOUT, IIN, PIN, VAUX With 12-Bit Resolution and 1-kHz Sampling Rate
  • Current Measurement Accuracy: ±1% Over Temperature
  • Power Measurement Accuracy: ±2% Over Temperature
  • True Input Power Measurement Using Simultaneous Sampling of VIN and IIN Accurately Averages Dynamic Power Readings
  • Averaging of VIN, IIN, PIN, and VOUT Over Programmable Interval Ranging from 0.001 to 4 Seconds
  • Programmable WARN and FAULT Thresholds with SMBA Notification
  • Black Box Capture of Telemetry Measurements and Device Status Triggered by WARN or FAULT Condition
  • 24-Lead WQFN Package

The LM25066A combines a high-performance hot-swap controller with a PMBus™ compliant SMBus/I2C interface to accurately measure, protect and control the electrical operating conditions of computing and storage blades connected to a backplane power bus. The LM25066A continuously supplies real-time power, voltage, current, temperature and fault data to the system management host via the SMBus interface.

The LM25066A control block includes a unique hot-swap architecture that provides current and power limiting to protect sensitive circuitry during insertion of boards into a live system backplane, or any other power source. A fast acting circuit breaker prevents damage in the event of a short circuit on the output. The input undervoltage and overvoltage levels and hysteresis are configurable, as well as the insertion delay time and fault detection time. A temperature monitoring block on the LM25066A interfaces with a low-cost external diode for monitoring the temperature of the external MOSFET or other thermally sensitive components. The POWER GOOD output provides a fast indicator when the input and/or output voltages are outside their programmed range. LM25066A current measurement accuracy is ±1% over temperature.

The LM25066A monitoring block computes both the real-time and average values of subsystem operating parameters (VIN, IIN, PIN, VOUT) as well as the peak power. Accurate power averaging is accomplished by averaging the product of the input voltage and current. A black box (Telemetry/Fault Snapshot) function captures and stores telemetry data and device status in the event of a warning or a fault.

The LM25066A combines a high-performance hot-swap controller with a PMBus™ compliant SMBus/I2C interface to accurately measure, protect and control the electrical operating conditions of computing and storage blades connected to a backplane power bus. The LM25066A continuously supplies real-time power, voltage, current, temperature and fault data to the system management host via the SMBus interface.

The LM25066A control block includes a unique hot-swap architecture that provides current and power limiting to protect sensitive circuitry during insertion of boards into a live system backplane, or any other power source. A fast acting circuit breaker prevents damage in the event of a short circuit on the output. The input undervoltage and overvoltage levels and hysteresis are configurable, as well as the insertion delay time and fault detection time. A temperature monitoring block on the LM25066A interfaces with a low-cost external diode for monitoring the temperature of the external MOSFET or other thermally sensitive components. The POWER GOOD output provides a fast indicator when the input and/or output voltages are outside their programmed range. LM25066A current measurement accuracy is ±1% over temperature.

The LM25066A monitoring block computes both the real-time and average values of subsystem operating parameters (VIN, IIN, PIN, VOUT) as well as the peak power. Accurate power averaging is accomplished by averaging the product of the input voltage and current. A black box (Telemetry/Fault Snapshot) function captures and stores telemetry data and device status in the event of a warning or a fault.
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檢視所有 6
類型 標題 日期
* Data sheet LM25066A System Power Management and Protection IC With PMBus™ datasheet (Rev. G) PDF | HTML 2016年 11月 11日
Application note Basics of Power Switches (Rev. A) PDF | HTML 2019年 4月 26日
Selection guide Power Management Guide 2018 (Rev. R) 2018年 6月 25日
Technical article Simplify digital hot swap design using the PI-Commander GUI PDF | HTML 2016年 6月 6日
Application note Robust Hot Swap Design (Rev. A) 2015年 4月 8日
User guide AN-2100 LM25066 Evaluation Board (Rev. C) 2013年 4月 26日

設計與開發

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開發模組 (EVM) 的 GUI

SLVC572 — PI-Commander EVM GUI

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產品
eFuses 和熱插拔制器
LM25066 — 具 PMBus 的 2.9-V 至 17-V 熱插拔控制器 LM25066A — 具更高監控精度與 I2C 和 PMBus 的 2.9V 至 17-V 熱插拔控制器 LM25066I — 具內部節點管理工具與 I2C 和 PMBus 的 2.9V 至 17-V 熱插拔控制器 LM25066IA — 具 I2C 和 PMBus 的 2.9V 至 17-V 熱插拔控制器 - 具更高監控精度與內部節點 LM5064 — 具 PMBus 的 -10-V 至 -80-V 熱插拔控制器 LM5066 — 具電流、電壓和電源監控及 PMBus 的 10 V 至 80 V 熱插拔控制器 LM5066I — 具進階電流、電壓和電源監控準確度的 10 V 至 80 V 熱插拔控制器
供電設備
TPS23861 — 具自主模式的 2 對、Type-2、4 通道 PoE PSE
硬體開發
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LM5056EVM — LM5056 高電壓系統電源管理 IC 評估模組 TPS23861EVM-612 — 適用於四路 IEEE 802.3at PoE PSE 控制器的 TPS23861EVM-612 評估模組
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支援軟體

SNVU310 — LM25066 Design Calculator

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產品
eFuses 和熱插拔制器
LM25066 — 具 PMBus 的 2.9-V 至 17-V 熱插拔控制器 LM25066A — 具更高監控精度與 I2C 和 PMBus 的 2.9V 至 17-V 熱插拔控制器 LM25066I — 具內部節點管理工具與 I2C 和 PMBus 的 2.9V 至 17-V 熱插拔控制器 LM25066IA — 具 I2C 和 PMBus 的 2.9V 至 17-V 熱插拔控制器 - 具更高監控精度與內部節點
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模擬型號

LM25066A Unencrypted PSpice Transient Model Package (Rev. A)

SNVM476A.ZIP (62 KB) - PSpice Model
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計算工具

SNVR505 — LM25066 Design Calculator With FET Recommendation

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產品
eFuses 和熱插拔制器
LM25066 — 具 PMBus 的 2.9-V 至 17-V 熱插拔控制器 LM25066A — 具更高監控精度與 I2C 和 PMBus 的 2.9V 至 17-V 熱插拔控制器 LM25066I — 具內部節點管理工具與 I2C 和 PMBus 的 2.9V 至 17-V 熱插拔控制器 LM25066IA — 具 I2C 和 PMBus 的 2.9V 至 17-V 熱插拔控制器 - 具更高監控精度與內部節點
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計算工具

TVS-RECOMMENDATION-CALC — TVS diode recommendation tool

This tool suggests suitable TVS for given system parameters and abs max voltage rating of the device.
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PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
要求
參考設計

PMP10896 — 適用於企業乙太網路交換器的完整 PMBus 電源系統參考設計

Complete PMBus power system for 3 ASIC/FPGA cores, DDR3 core memory, and auxiliary voltages found on high-performance Ethernet Switches.
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