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LM25066

現行

具 PMBus 的 2.9-V 至 17-V 熱插拔控制器

產品詳細資料

Vabsmax_cont (V) 24 Vin (max) (V) 17 Vin (min) (V) 2.9 Features Adjustable OVLO, Adjustable current limit, Adjustable soft start, Current monitoring, Fault output, Overcurrent protection, Overvoltage protection, PMBus, Power good signal, Short circuit protection, Thermal shutdown, adjustable UVLO Overcurrent response Circuit breaker, Current limiting Fault response Auto-retry, Latch-off Overvoltage response Cut-off Rating Catalog Soft start Adjustable Quiescent current (Iq) (typ) (A) 0.0058 Quiescent current (Iq) (max) (A) 0.008 Device type eFuses and hot swap controllers Operating temperature range (°C) -40 to 125
Vabsmax_cont (V) 24 Vin (max) (V) 17 Vin (min) (V) 2.9 Features Adjustable OVLO, Adjustable current limit, Adjustable soft start, Current monitoring, Fault output, Overcurrent protection, Overvoltage protection, PMBus, Power good signal, Short circuit protection, Thermal shutdown, adjustable UVLO Overcurrent response Circuit breaker, Current limiting Fault response Auto-retry, Latch-off Overvoltage response Cut-off Rating Catalog Soft start Adjustable Quiescent current (Iq) (typ) (A) 0.0058 Quiescent current (Iq) (max) (A) 0.008 Device type eFuses and hot swap controllers Operating temperature range (°C) -40 to 125
WQFN (NHZ) 24 20 mm² (5 mm × 4 mm)
  • 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: ±2.4% Over
    Temperature
  • Power Measurement Accuracy: ±3% 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
  • Blackbox Capture of Telemetry Measurements
    and Device Status Triggered by WARN or FAULT
    Condition
  • Full-Featured Application Design and
    Development GUI
  • 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: ±2.4% Over
    Temperature
  • Power Measurement Accuracy: ±3% 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
  • Blackbox Capture of Telemetry Measurements
    and Device Status Triggered by WARN or FAULT
    Condition
  • Full-Featured Application Design and
    Development GUI
  • 24-Lead WQFN Package

The LM25066 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 LM25066 continuously supplies real-time power, voltage, current, temperature and fault data to the system management host via the SMBus interface.

The LM25066 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 hot 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 LM25066 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. LM25066 current measurement accuracy is ±2.4% over temperature.

The LM25066 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 LM25066 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 LM25066 continuously supplies real-time power, voltage, current, temperature and fault data to the system management host via the SMBus interface.

The LM25066 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 hot 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 LM25066 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. LM25066 current measurement accuracy is ±2.4% over temperature.

The LM25066 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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技術文件

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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 LM25066 System Power Management and Protection IC With PMBus™ datasheet (Rev. J) PDF | HTML 2016/1/6
應用說明 Implementation of PSYS Monitor Using TPS25984, TPS25985, or TPS25990 eFuses PDF | HTML 2023/11/15
電子書 11 Ways to Protect Your Power Path 2019/7/3
選擇指南 Power Management Guide 2018 (Rev. R) 2018/6/25
技術文章 Simplify digital hot swap design using the PI-Commander GUI PDF | HTML 2016/6/6
技術文章 Building blocks of power PDF | HTML 2016/3/23
技術文章 Simplify robust hot-swap design using design calculator tools PDF | HTML 2016/3/4
選擇指南 Hot Swap Selection Tool 2015/7/28
應用說明 Handling System Transients in Hot Swap Applications 2015/5/8
應用說明 Robust Hot Swap Design (Rev. A) 2015/4/8

設計與開發

如需其他條款或必要資源,請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

LM25066EVK — 用於 LM25066 的評估板

LM25066EVK 評估模組 (EVM) 是完全組裝且經過測試的電路,用於評估具備符合 PMBUS 規範 SMBUS/I2C 介面的 LM25066 熱插拔控制器,以準確量測、保護和控制連接至背板電源匯流排的系統電氣運作狀況。EVM 包含接頭連接器,可輕鬆連接外部測試和應用電路。

使用指南: PDF
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開發模組 (EVM) 的 GUI

PMBUSMGRGUI-SW — LM25066, LM5066, LM5064, LM25056 PMBus Manager GUI

Companion GUI for evaluation boards supporting: LM25066, LM5066, LM5064 Hot Swap + telemetry devices and the LM25056 telemetry-only device

支援產品和硬體
開發模組 (EVM) 的 GUI

SLVC572 — PI-Commander EVM GUI

支援產品和硬體
支援軟體

SNVU310 — LM25066 Design Calculator

支援產品和硬體
計算工具

SNVR505 — LM25066 Design Calculator With FET Recommendation

支援產品和硬體
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.
支援產品和硬體
封裝 針腳 CAD 符號、佔位空間與 3D 模型
WQFN (NHZ) 24 Ultra Librarian

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