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PMBus Power-Supply Data Logger

Detects and Records Out-of-Range Power-Supply Conditions to Determine Failure or Misuse

Product Details

Key Features

Applications/Uses

Parametric specs for Power-Supply Sequencers and Voltage Trackers
# Input Channels 4
Interface I2C/SMBus
PMBus™
Option Monitor
VIN (V) (max) 5.5
Oper. Temp. (°C) -40 to +85
Package/Pins TQFN/40
Budgetary
Price (See Notes)
3.32
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Simplified Block Diagram

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Parameters

Parametric specs for Power-Supply Sequencers and Voltage Trackers
# Input Channels 4
Interface I2C/SMBus
PMBus™
Option Monitor
VIN (V) (max) 5.5
Oper. Temp. (°C) -40 to +85
Package/Pins TQFN/40
Budgetary
Price (See Notes)
3.32

Key Features

  • Voltage, Current, and Temperature Measurement and Threshold Excursion Detection
  • Supports Up to Four Voltage or Current Measurements
  • Supports Up to Three Temperature Sensors: Two Remote Diodes Plus an Internal Sensor
  • Calculates Power Consumption
  • Differential 12-Bit ADC
  • PMBus™-Compliant Control Interface
  • Power-Good Outputs
  • Individual Fault Outputs
  • On-Board Nonvolatile Fault Logging and Default Configuration Setting
  • I²C/SMBus-Compatible Serial Bus with Bus Timeout Function
  • No External Clocking Required
  • 2.7V to 5.5V Supply Voltage
  • Low Power Consumption
  • -40°C to +105°C Temperature Range
  • 40-Pin TQFN (6mm x 6mm) Package

Applications/Uses

  • Base Stations
  • Industrial Controls
  • Network Switches/Routers
  • Servers
  • Smart Grid Network Systems

Description

The MAX34446 data logger for power supplies can monitor voltages for overvoltage and undervoltage, as well as for overcurrent conditions and overtemperature conditions. The device constantly checks for userprogrammable thresholds; when these thresholds are exceeded, the device logs the recent real-time operating conditions in nonvolatile flash memory. The device can monitor up to four voltages or currents, and can monitor three temperature sensors. See the Typical Application Circuit/Block Diagram for more details.

Simplified Block Diagram

MAX34446: Typical Application Circuit/Block Diagram MAX34446: Typical Application Circuit/Block Diagram Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .