MAX34451
PMBus 16-Channel V/I Monitor and 12-Channel Sequencer/Marginer
Provides Unparalleled Sequencing, Monitoring, and Fault Logging with PWM Margining
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Overview
Features and Benefits
- 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
Product Details
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
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
Documentation & Resources
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MAX34451 Reliability Data1/12/2023PDF156K
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PWM Margining with the MAX344515/13/2013
Tools & Simulations
Software Development
Design Resources
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.
PCN-PDN Information
Support & Discussions
Sample & Buy
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Buy Now Pricing
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List Pricing
(*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
Lead Times
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Sampling
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Evaluation Boards
Pricing displayed is based on 1-piece.
Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.