General Description
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.

Benefits and Features
● 16 Channels of Power-Supply Management
● On-Board Nonvolatile Black Box Fault Logging and
Default Configuration Setting
● Supports Complex Sequencing Requirements
• Time- and Event-Based Sequencing
• Parallel/Cascaded Device Operation
• Programmable Up and Down Sequencing
● Easy to Program and Monitor
• PMBus-Compatible Command Interface
• Easy-to-Use GUI
● Flexible Measurement and Monitoring Capability
• 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 Design
• 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

Applications
● Network Switches/Routers
● Base Stations
● Servers
● Smart Grid Network Systems