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Details for Texas Instruments


LM5066I High Voltage System Power Management and Protection IC with PMBus
Buy Directly from Texas Instruments (4697 in Stock)
$5.1200 per unit
Series Information for LM5066IPMHE/NOPB - Texas Instruments


  • feature
    10- to 80-V Operation
  • feature
    100-V Continuous Absolute Max
  • feature
    12-bit ADC with 1-kHz Sampling Rate
  • feature
    26 mV or 50 mV ILIM Threshold (u00b110%)
  • feature
    External FET Temperature Sensing
  • feature
    Failed FET Detection
  • feature
    I2 C / SMBus Interface
  • feature
    PMBusu2122 and Node Manager 2.0 and 3.0 Compliant Command Structure
  • feature
    Precision V IN, VOUT, IIN, PIN, VAUX Monitoring u2013 V (u00b11.25%); I (u00b11.75%); P (u00b12.5%)
  • feature
    Programable I/V/P Averaging Interval
  • feature
    Programable UV, OV, tFAULT Thresholds
  • feature
    Programmable FET SOA Protection
  • feature
    Supports Energy Monitoring via Read_EIN Command
  • feature
    u201340u00b0C < TJ < 125u00b0C 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 Table 1 for a detailed comparison.


Controller Applications:
48V Servers Base Station Power Distribution Networking Routers & Switchers PLC Power Management
Input Voltage:
Supply Voltage Min:
Supply Voltage Max:
Controller IC Case Style:
No. of Pins:
Operating Temperature Min:
Operating Temperature Max:
Product Range:
RoHS Phthalates Compliant:
MSL 3 - 168 hours
No SVHC (27-Jun-2018)
Internal Switch:

Alternate Descriptions

Avnet America

Hot Swap Controller 1-CH 80V 28-Pin HTSSOP T/R

Avnet America product

Avnet Europe

Hot Swap Controller 1-CH 80V 28-Pin HTSSOP T/R

Avnet Europe product

Texas Instruments

LM5066I High Voltage System Power Management and Protection IC with PMBus

Texas Instruments product