MAX34451

RECOMMENDED FOR NEW DESIGNS

PMBus 16-Channel V/I Monitor and 12-Channel Sequencer/Marginer

Provides Unparalleled Sequencing, Monitoring, and Fault Logging with PWM Margining

Data Sheet (Rev. 12) Product Selection Table

Part Models: 8
1ku List Price: Starting From $7.06

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Overview

Integration Enables Management of Multiple Power Supplies to Maximize System Performance
- 16 Channels of Voltage or Current Monitoring
- 12 Channels of Sequencing and Margining (8 PWM, 4 External Current DACs (1 x DS4424), and Sequencing
- Expandable Channel Operation with Parallel Devices
- Remote Ground Sensing Improves Measurement Accuracy
- Programmable Up and Down Time-Based or Event-Based Sequencing
- Dual Sequencing Loops
- Configurable Combinatorial Logic Supporting Up to 16 GPIs and 20 GPOs
- Automatic Closed-Loop Margining
- No External Clocking Required
- PMBus™ -Compliant Command Interface

Fast, Reliable Control and Fault Detection Improves System Reliability
- Fast Minimum/Maximum Threshold Excursion Detection
- Supports Up to 5 Temperature Sensors (1 Internal and 4 Remote)
- Fault Detection on All Temperature Sensors
- Reports Peak, Minimum, and Average Levels for a Number of Parameters
- Programmable Alarm Outputs
- On-Board Nonvolatile Black Box Fault Logging and Default Configuration Setting
I²C-/SMBus-Compatible Serial Bus with Bus Time-Out Function Simplifies Additional Temperature Sensors and DACs to the MAX34451
+3.0V to +3.6V Supply Voltage

The MAX34451 is a power-supply system manager that is capable of monitoring up to 16 different voltage rails or currents and is also capable of sequencing and margining up to 12 power supplies. The system manager monitors the power-supply output voltages and currents and constantly checks them for user programmable over and under threshold limits. 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. 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.

Applications

Base Stations
Network Switches/Routers
Servers
Smart Grid Network Systems

Part Models: 8
1ku List Price: Starting From $7.06

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
MAX34451ETNA2+	56-LFCSP-7X7X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX34451ETNA2+T	56-LFCSP-7X7X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX34451ETNA3+	56-LFCSP-7X7X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX34451ETNA3+T	56-LFCSP-7X7X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX34451ETNA4+	56-LFCSP-7X7X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX34451ETNA4+T	56-LFCSP-7X7X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX34451ETNA6+	56-LFCSP-7X7X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX34451ETNA6+T	56-LFCSP-7X7X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Sep 16, 2023 - 2379 WAFER FAB
		pcn_2379
MAX34451ETNA2+	PRODUCTION
MAX34451ETNA2+T	PRODUCTION
MAX34451ETNA3+	PRODUCTION
MAX34451ETNA3+T	PRODUCTION
MAX34451ETNA4+	PRODUCTION
MAX34451ETNA4+T	PRODUCTION
Jul 8, 2020 - 2003 DESIGN
		pcn_2003
MAX34451ETNA2+	PRODUCTION
MAX34451ETNA2+T	PRODUCTION
MAX34451ETNA3+	PRODUCTION
MAX34451ETNA3+T	PRODUCTION
MAX34451ETNA4+	PRODUCTION
MAX34451ETNA4+T	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Hardware Ecosystem

Parts	Product Life Cycle	Description
Analog to Digital Converters (ADCs) 1
DS75LV	PRODUCTION	Digital Thermometer and Thermostat
Power System Management (PSM) & Sequencers 4
MAX34461		PMBus 16-Channel Voltage Monitor and Sequencer
MAX34460	NOT RECOMMENDED FOR NEW DESIGNS	PMBus 12-Channel Voltage Monitor and Sequencer
MAX34441	LAST TIME BUY	PMBus 5-Channel Power-Supply Manager and Intelligent Fan Controller

MAX34440

PRODUCTION

PMBus 6-Channel Power-Supply Manager

Tools & Simulations

Software Development 1

MAX34451 EV Kit Software Install Ver 3.2, 3.2.0

Evaluation Kits

Evaluation Kit for the MAX34451

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Features and Benefits

Easy Evaluation of the MAX34451
Four Power-Supply Channels
One Current-Sense Amplifier
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

Product Details

The MAX34451 evaluation kit (EV kit) provides the hardware and software graphical-user interface (GUI) necessary to evaluate the MAX34451 PMBus^™ 16-channel V/I monitor and 12-channel sequencer/marginer. The EV kit includes a MAX34451 installed as well as four power supplies that can be sequenced, monitored, and margined by the device.

Applications

Base Stations
Network Switches/Routers
Servers
Smart Grid Network Systems

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