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Product details

Parameters

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 Current Limiting Current limit type Adjustable Fault response Auto Retry, Latch Off UL recognition open-in-new Find other eFuses & hot swap controllers

Package | Pins | Size

HTSSOP (PWP) 28 43 mm² 9.7 x 4.4 open-in-new Find other eFuses & hot swap controllers

Features

  • 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
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Description

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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Technical documentation

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Type Title Date
* Datasheet LM5066I 10 to 80 V, Hotswap Controller With I/V/P Monitoring and PMBus Interface datasheet (Rev. C) Jul. 20, 2016
White papers 11 Ways to Protect Your Power Path white paper Jul. 03, 2019
Application notes Minimizing System Down-time with Smart eFuses Jun. 12, 2019
Technical articles How can a load switch extend your device’s battery life? Mar. 20, 2018
Technical articles How and why you should use load switches for power sequencing Feb. 06, 2018
Technical articles How to use load switches and eFuses in your set-top box design Nov. 23, 2017
Technical articles Don’t leave it floating! Power off your outputs with quick output discharge Dec. 09, 2016
Application notes Handling System Transients in Hot Swap Applications May 08, 2015
Application notes Robust Hot Swap Design (Rev. A) Apr. 08, 2015
User guides LM5066IEVM-626 Evaluation Module May 15, 2014

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
99
Description

The LM5066IEVM-626 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the LM5066I high-performance hot-swap controller with PMBUS compliant SMBUS/I2C interface to accurately measure, protect and control the electrical operating conditions of systems connected to a (...)

Features
  •  High telemetry accuracy +/-1.25% current measurement and +/-1.75% power measurement accuracy.
  • Wide input voltage range: 10V-80V.
  • Fully node manager 2.0 and 2.5 compliant with I2C/SMBus interface and PMBus compliant command structure.
  • Remote temperature sensing with programmable warning and shutdown (...)
GUIS FOR EVALUATION MODULES (EVM) Download
SLVC572.ZIP (14513 KB)

Software development

DRIVERS & LIBRARIES Download
SLVC576.ZIP (238831 KB)

Design tools & simulation

SIMULATION MODELS Download
SNVM587A.ZIP (127 KB) - PSpice Model
SIMULATION TOOLS Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — 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 (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
CALCULATION TOOLS Download
SLVC577E.ZIP (720 KB)

CAD/CAE symbols

Package Pins Download
HTSSOP (PWP) 28 View options

Ordering & quality

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