Home Power management Power switches eFuses & hot swap controllers

LM5066

ACTIVE

10-V to 80-V hot swap controller with current, -Voltage and power monitoring and PMBus

Product details

FET External Vin (min) (V) 10 Vin (max) (V) 80 Vabsmax_cont (V) 100 Current limit (min) (A) 0.01 Current limit (max) (A) 500 Overcurrent response Circuit breaker, current limiting Soft start Adjustable Overvoltage response Cut-off 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) 10 Vin (max) (V) 80 Vabsmax_cont (V) 100 Current limit (min) (A) 0.01 Current limit (max) (A) 500 Overcurrent response Circuit breaker, current limiting Soft start Adjustable Overvoltage response Cut-off 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
HTSSOP (PWP) 28 62.08 mm² 9.7 x 6.4
  • 10- to 80-V Operation
  • 100-V Continuous Absolute Max
  • 26 mV (±12%) or 50 mV (±6%) ILIM Threshold
  • Programmable FET SOA Protection
  • Programable UV, OV, tFAULT Thresholds
  • External FET Temperature Sensing
  • Failed FET Detection
  • I2C / SMBus Interface
  • PMBus™ Compliant Command Structure
  • Precision V IN, VOUT, IIN, PIN, VAUX Monitoring
    • V (±2.7%); I (±3%); P (±4.5%)
  • Programable I/V/P Averaging Interval
  • 12-bit ADC with 1-kHz Sampling Rate
  • –40°C < TJ < 125°C Operation
  • Pin-to-Pin Compatible with LM5066I
  • 10- to 80-V Operation
  • 100-V Continuous Absolute Max
  • 26 mV (±12%) or 50 mV (±6%) ILIM Threshold
  • Programmable FET SOA Protection
  • Programable UV, OV, tFAULT Thresholds
  • External FET Temperature Sensing
  • Failed FET Detection
  • I2C / SMBus Interface
  • PMBus™ Compliant Command Structure
  • Precision V IN, VOUT, IIN, PIN, VAUX Monitoring
    • V (±2.7%); I (±3%); P (±4.5%)
  • Programable I/V/P Averaging Interval
  • 12-bit ADC with 1-kHz Sampling Rate
  • –40°C < TJ < 125°C Operation
  • Pin-to-Pin Compatible with LM5066I

LM5066 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 LM5066 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. LM5066 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.

LM5066 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 LM5066 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. LM5066 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.

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Technical documentation

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Type Title Date
* Data sheet LM5066 10 to 80 V, Hotswap Controller With I/V/P Monitoring and PMBus Interface datasheet (Rev. I) PDF | HTML 26 Jan 2016
Application note Implementation of PSYS Monitor Using TPS25984, TPS25985, or TPS25990 eFuses PDF | HTML 15 Nov 2023
E-book 11 Ways to Protect Your Power Path 03 Jul 2019
Application note Basics of Power Switches (Rev. A) PDF | HTML 26 Apr 2019
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
Technical article Simplify digital hot swap design using the PI-Commander GUI PDF | HTML 06 Jun 2016
Application note Handling System Transients in Hot Swap Applications 08 May 2015
Application note Robust Hot Swap Design (Rev. A) 08 Apr 2015
User guide AN-2160 LM5066 Evaluation Board (Rev. A) 26 Apr 2013

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

LM5066EVK — LM5066 Evaluation Kit

The LM5066EVK evaluation module (EVM) is a fully assembled and tested circuit for evaluating the LM5066 hot-swap controller with PMBUS compliant SMBUS/I2C interface to accurately measure, protect and control the electrical operating conditions of systems connected to a backplane power bus. The EVM (...)

User guide: PDF
Not available on TI.com
GUI for evaluation module (EVM)

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

Supported products & hardware

Supported products & hardware

Products
eFuses & hot swap controllers
LM25066 2.9-V to 17-V hot swap controller with PMBus LM25066I 2.9-V to 17-V hot swap controller with I2C and PMBus with Intel node manager LM5064 -10-V to -80-V hot swap controller with PMBus LM5066 10-V to 80-V hot swap controller with current, -Voltage and power monitoring and PMBus
Digital power monitors
LM25056 3 to 17V, 12-bit, pmbus output current/voltage/power/temperature monitor
Hardware development
Evaluation board
LM5066EVK LM5066 Evaluation Kit
GUI for evaluation module (EVM)

SLVC572 PI-Commander EVM GUI

lock = Requires export approval (1 minute)
Supported products & hardware

Supported products & hardware

Products
eFuses & hot swap controllers
LM25066 2.9-V to 17-V hot swap controller with PMBus LM25066A 2.9-V to 17-V hot swap controller with I2C and PMBus with increased monitoring accuracy LM25066I 2.9-V to 17-V hot swap controller with I2C and PMBus with Intel node manager LM25066IA 2.9-V to 17-V hot swap controller with I2C and PMBus - increased monitoring accuracy and intel node LM5064 -10-V to -80-V hot swap controller with PMBus LM5066 10-V to 80-V hot swap controller with current, -Voltage and power monitoring and PMBus LM5066I 10-V to 80-V hot swap controller with improved current, voltage and power monitoring accuracy
Power sourcing equipment
TPS23861 2-pair, type-2, 4-channel PoE PSE with autonomous mode
Hardware development
Evaluation board
LM5056EVM LM5056 High Voltage System Power Management IC Evaluation Module TPS23861EVM-612 TPS23861EVM-612 Evaluation Module for Quad IEEE 802.3at PoE PSE Controller
Simulation model

LM5066 TINA-TI Reference Design

SNVM401.TSC (659 KB) - TINA-TI Reference Design
Simulation model

LM5066 TINA-TI Transient Spice Model

SNVM400.ZIP (44 KB) - TINA-TI Spice Model
Simulation model

LM5066 Unencrypted PSpice Transient Model Package (Rev. A)

SNVM325A.ZIP (90 KB) - PSpice Model
Calculation tool

SNVR507 LM5066I Design Calculator With FET Recommendation

Supported products & hardware

Supported products & hardware

Products
eFuses & hot swap controllers
LM5066 10-V to 80-V hot swap controller with current, -Voltage and power monitoring and PMBus LM5066I 10-V to 80-V hot swap controller with improved current, voltage and power monitoring accuracy
Calculation tool

SNVU080 LM5066 Design Calculator

Supported products & hardware

Supported products & hardware

Products
eFuses & hot swap controllers
LM5066 10-V to 80-V hot swap controller with current, -Voltage and power monitoring and PMBus
Calculation tool

TVS-RECOMMENDATION-CALC TVS diode recommendation tool

This tool suggests suitable TVS for given system parameters and abs max voltage rating of the device.
Supported products & hardware

Supported products & hardware

This design resource supports most products in these categories.

Check the product details page to verify support.

Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

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 (...)
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HTSSOP (PWP) 28 View options

Ordering & quality

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Information included:
  • Fab location
  • Assembly location

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

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