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電源保護開關與控制器
熱插拔控制器

LM5066I

現行

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

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產品規格表

LM5066I

現行
產品規格表 立即訂購

產品詳細資料

Vabsmax_cont (V) 100 Vin (max) (V) 80 Vin (min) (V) 10 Features Adjustable OVLO, Current monitoring, Fault output, Overvoltage protection, PMBus, Power good signal, Short circuit protection, 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) 0.0056 Quiescent current (Iq) (max) (A) 0.007 Device type eFuses and hot swap controllers Operating temperature range (°C) -40 to 125
Vabsmax_cont (V) 100 Vin (max) (V) 80 Vin (min) (V) 10 Features Adjustable OVLO, Current monitoring, Fault output, Overvoltage protection, PMBus, Power good signal, Short circuit protection, 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) 0.0056 Quiescent current (Iq) (max) (A) 0.007 Device type eFuses and hot swap controllers Operating temperature range (°C) -40 to 125
HTSSOP (PWP) 28 62.08 mm² (9.7 mm × 6.4 mm)
  • 10- to 80-V Operation
  • 100-V Continuous Absolute Max
  • 26 mV or 50 mV ILIM Threshold (±10%)
  • Programmable FET SOA Protection
  • Programable UV, OV, tFAULT Thresholds
  • External FET Temperature Sensing
  • Failed FET Detection
  • I2C / SMBus Interface
  • PMBus and Node Manager 2.0 and 3.0 Compliant Command Structure
  • Precision V IN, VOUT, IIN, PIN, VAUX Monitoring
    • V (±1.25%); I (±1.75%); P (±2.5%)
  • Supports Energy Monitoring via Read_EIN Command
  • Programable I/V/P Averaging Interval
  • 12-bit ADC with 1-kHz Sampling Rate
  • –40°C < TJ < 125°C Operation
  • 10- to 80-V Operation
  • 100-V Continuous Absolute Max
  • 26 mV or 50 mV ILIM Threshold (±10%)
  • Programmable FET SOA Protection
  • Programable UV, OV, tFAULT Thresholds
  • External FET Temperature Sensing
  • Failed FET Detection
  • I2C / SMBus Interface
  • PMBus and Node Manager 2.0 and 3.0 Compliant Command Structure
  • Precision V IN, VOUT, IIN, PIN, VAUX Monitoring
    • V (±1.25%); I (±1.75%); P (±2.5%)
  • Supports Energy Monitoring via Read_EIN Command
  • Programable I/V/P Averaging Interval
  • 12-bit ADC with 1-kHz Sampling Rate
  • –40°C < TJ < 125°C Operation

LM5066I provides robust protection and precision monitoring for 10- to 80-V systems. Programmable UV, OV, ILIMIT, and fast-short circuit protection allow for customized protection for any application. Programmable FET SOA protection sets the maximum power the FET is allowed to dissipate under any condition. The programmable fault timer (tFAULT) is set to avoid nuisance trips, ensure start-up, and limit the duration of over load events.

In addition to circuit protection, the LM5066I supplies real-time power, voltage, current, temperature, and fault data to the system management host through the I2C / SMBus interface. PMBus compliant command structure makes it easy to program the device. Precision telemetry enables intelligent power management functions such as efficiency optimization and early fault detection. LM5066I also supports advanced features such as I/V/P averaging and peak power measurment to improve system diagnostics.

LM5066I is pin-to-pin compatible with the LM5066 and offers improved telemetry accuracy and supports the Read_Ein command to monitor energy. See for a detailed comparison.

LM5066I provides robust protection and precision monitoring for 10- to 80-V systems. Programmable UV, OV, ILIMIT, and fast-short circuit protection allow for customized protection for any application. Programmable FET SOA protection sets the maximum power the FET is allowed to dissipate under any condition. The programmable fault timer (tFAULT) is set to avoid nuisance trips, ensure start-up, and limit the duration of over load events.

In addition to circuit protection, the LM5066I supplies real-time power, voltage, current, temperature, and fault data to the system management host through the I2C / SMBus interface. PMBus compliant command structure makes it easy to program the device. Precision telemetry enables intelligent power management functions such as efficiency optimization and early fault detection. LM5066I also supports advanced features such as I/V/P averaging and peak power measurment to improve system diagnostics.

LM5066I is pin-to-pin compatible with the LM5066 and offers improved telemetry accuracy and supports the Read_Ein command to monitor energy. See for a detailed comparison.
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LM5066 現行 具電流、電壓和電源監控及 PMBus 的 10 V 至 80 V 熱插拔控制器 Hot swap controller with current, voltage and power monitoring and PMBus

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 LM5066I 10 to 80 V, Hotswap Controller With I/V/P Monitoring and PMBus Interface datasheet (Rev. C) PDF | HTML 2016/7/20
類比設計期刊 Analog Design Journal - Issue 1, 2025 PDF | HTML 2025/6/27
類比設計期刊 針對能源測量中的隔離式電流感測，將訊 號鏈成本與準確度最佳化 PDF | HTML Download English Version PDF | HTML 2025/5/23
類比設計期刊 電源開關的暫態保護設計，可實現穩健、 可靠的電源路徑保護 PDF | HTML Download English Version PDF | HTML 2025/5/23
類比設計期刊 使用熱插拔控制器解決 48V AI 伺服器的 保護挑戰 PDF | HTML Download English Version PDF | HTML 2025/5/23
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
應用說明 Minimizing System Down-time with Smart eFuses 2019/6/12
技術文章 Simplify digital hot swap design using the PI-Commander GUI PDF | HTML 2016/6/6
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

LM5066IEVM-626 — 具有 PMBus 的 LM5066IEVM-626 評估模組

LM5066IEVM-626 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 LM5066I 高性能熱插拔控制器，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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驅動程式或資料庫

SLVC576 — LGPL Library Source Used by PI-Commander

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開發模組 (EVM) 的 GUI

SLVC572 — PI-Commander EVM GUI

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模擬型號

LM5066I Unencrypted PSpice Transient Model Package (Rev. A)

SNVM587A.ZIP (127 KB) - PSpice 模型
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計算工具

SLVC577 — LM5066I Design Calculator

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計算工具

SNVR507 — LM5066I Design Calculator With FET Recommendation

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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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參考設計

PMP23496 — 適用於 48V 人工智慧伺服器的 8kW 熱插拔參考設計

隨著人工智慧 (AI) 和機器學習 (ML) 進步，企業伺服器也漸趨耗電，因為這些伺服器需同時處理大量資料和儲存。每個伺服器主板的穩定狀態額定功率上升到 5kW 至 6kW，相較之下，一般伺服器則為 1kW 至 2kW。然而其外形尺寸卻維持不變，這也讓更高的功率密度帶來了系統設計挑戰。與一般伺服器相比，AI 伺服器的負載幅度、電壓轉換速率和暫態負載頻率增加了三到四倍。考慮到這些需求，此參考設計使用 LM5066I 熱插拔控制器開發，可在額定輸入電壓為 54V 的高功率伺服器背板系統中，提供穩健且可靠的輸入電源路徑保護設計。

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HTSSOP (PWP) 28 Ultra Librarian
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