Catalog
PMBus 16-Channel Voltage Monitor and Sequencer
Key Features
• 16 Channels of Power-Supply Management
• On-Board Nonvolatile Black Box Fault Logging and Default Configuration Setting
• Supports Complex Sequencing RequirementsTime- and Event-Based SequencingParallel/Cascaded Device OperationProgrammable Up and Down Sequencing
• Time- and Event-Based Sequencing
• Parallel/Cascaded Device Operation
• Programmable Up and Down Sequencing
• Easy to Program and MonitorPMBus-Compatible Command InterfaceEasy-to-Use GUI
• PMBus-Compatible Command Interface
• Easy-to-Use GUI
• Flexible Measurement and Monitoring CapabilityReports Peak and Average LevelsFour Remote Temperature SensorsOne Internal Temperature Sensor
• Reports Peak and Average Levels
• Four Remote Temperature Sensors
• One Internal Temperature Sensor
• Automatic Closed-Loop Margining Improves Accuracy
• Remote Ground Sensing Improves Measurement Accuracy
• Simplifies System-Level DesignUp to 16 GPOsNo External Clocking Minimizes System-Level DesignI2C/SMBus-Compatible Serial Bus with Bus Timeout FunctionPower-Supply Voltage Measurement and Monitoring
• Up to 16 GPOs
• No External Clocking Minimizes System-Level Design
• I2C/SMBus-Compatible Serial Bus with Bus Timeout Function
• Power-Supply Voltage Measurement and Monitoring
• Fast Minimum/Maximum Threshold Excursion Detection
• 3.0V to 3.6V Supply Voltage
Description
AI
The MAX34461A is a system monitor that is capable of managing up to 16 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.ApplicationsNetwork Switches/RoutersBase StationsServersSmart Grid Network SystemsDifferences from MAX34460Adds 4 Channels of Monitoring, Sequencing, and MarginingRemoves Dual-Loop Sequencing, Watchdog, and Alarm Output Functionality