Top

PMBus 12-Channel Voltage Monitor and Sequencer

Provides Unparalleled Sequencing, Monitoring, and "Black Box" Fault Logging of Up to 12 POL Power Supplies

Product Details

The MAX34460 is a system monitor that is capable of managing up to 12 power supplies. The power-supply manager monitors the power-supply output voltages and constantly checks for user-programmable overvoltage and undervoltage thresholds. If a fault is detected, the device automatically shuts down the system in an orderly fashion. The device can sequence the supplies in any order at both power-up and power-down. With the addition of external current DACs, the device has the ability to close-loop margin the power-supply output voltages up or down to a user-programmable level. The device contains an internal temperature sensor and can support up to four external remote temperature sensors. Once configured, the device can operate autonomously without any host intervention.

Key Features

  • 12 Channels of Power-Supply Management
  • Power-Supply Voltage Measurement and Monitoring
  • Fast Minimum/Maximum Threshold Excursion Detection
  • Remote Ground Sensing Improves Measurement Accuracy
  • Automatic Closed-Loop Margining
  • Programmable Up and Down Time-Based or Event-Based Sequencing
  • Supports Dual-Sequencing Groups
  • Supports Up to Five Temperature Sensors (One Internal/Four Remote)
  • Fault Detection on All Temperature Sensors
  • Programmable Alarm Outputs
  • Reports Peak and Average Levels for a Number of Parameters
  • Watchdog Timer Function
  • PMBus™-Compliant Command Interface
  • I²C/SMBus-Compatible Serial Bus with Bus Timeout Function
  • On-Board Nonvolatile Black Box Fault Logging and Default Configuration Setting
  • Expandable Channel Operation with Parallel Devices
  • Up to 20 GPOs
  • No External Clocking Required
  • 3.0V to 3.6V Supply Voltage

Applications/Uses

  • Base Stations
  • Network Switches/Routers
  • Servers
  • Smart Grid Network Systems
Parametric specs for Power Supply Sequencers and Voltage Trackers
# Input Channels 12
Interface I2C/SMBus
PMBus™
Option Monitor
Sequence
VIN (V) (max) 3.3
Oper. Temp. (°C) -40 to +85
Package/Pins TQFN/48
Budgetary
Price (See Notes)
$4.11 @1k
View More

Simplified Block Diagram

MAX34460: Typical Operating Circuit MAX34460: Typical Operating Circuit Zoom icon

Technical Docs

Design & Development

Click any title below to view the detail page where available.

Description

The MAX34460 evaluation kit (EV kit) provides the hardware and software graphical user interface (GUI) necessary to evaluate the MAX34460 PMBus™ 12-channel voltage monitor and sequencer. The EV kit includes a MAX34460ETM+ installed, as well as four power supplies that can be sequenced, monitored, and margined by the IC.

View Details

Features

  • Easy Evaluation of the MAX34460
  • Four Power-Supply Channels
  • EV Kit Hardware is USB Powered (USB Cable Included)
  • USB HID Interface
  • Windows XP®- and Windows® 7-Compatible Software
  • RoHS Compliant
  • Proven PCB Layout
  • Fully Assembled and Tested

/en/design/design-tools/ee-sim.html?

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.

Parameters

Parametric specs for Power Supply Sequencers and Voltage Trackers
# Input Channels 12
Interface I2C/SMBus
PMBus™
Option Monitor
Sequence
VIN (V) (max) 3.3
Oper. Temp. (°C) -40 to +85
Package/Pins TQFN/48
Budgetary
Price (See Notes)
$4.11 @1k

Key Features

  • 12 Channels of Power-Supply Management
  • Power-Supply Voltage Measurement and Monitoring
  • Fast Minimum/Maximum Threshold Excursion Detection
  • Remote Ground Sensing Improves Measurement Accuracy
  • Automatic Closed-Loop Margining
  • Programmable Up and Down Time-Based or Event-Based Sequencing
  • Supports Dual-Sequencing Groups
  • Supports Up to Five Temperature Sensors (One Internal/Four Remote)
  • Fault Detection on All Temperature Sensors
  • Programmable Alarm Outputs
  • Reports Peak and Average Levels for a Number of Parameters
  • Watchdog Timer Function
  • PMBus™-Compliant Command Interface
  • I²C/SMBus-Compatible Serial Bus with Bus Timeout Function
  • On-Board Nonvolatile Black Box Fault Logging and Default Configuration Setting
  • Expandable Channel Operation with Parallel Devices
  • Up to 20 GPOs
  • No External Clocking Required
  • 3.0V to 3.6V Supply Voltage

Applications/Uses

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

Description

The MAX34460 is a system monitor that is capable of managing up to 12 power supplies. The power-supply manager monitors the power-supply output voltages and constantly checks for user-programmable overvoltage and undervoltage thresholds. If a fault is detected, the device automatically shuts down the system in an orderly fashion. The device can sequence the supplies in any order at both power-up and power-down. With the addition of external current DACs, the device has the ability to close-loop margin the power-supply output voltages up or down to a user-programmable level. The device contains an internal temperature sensor and can support up to four external remote temperature sensors. Once configured, the device can operate autonomously without any host intervention.

Simplified Block Diagram

MAX34460: Typical Operating Circuit MAX34460: Typical Operating Circuit 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.