MAX34451
MAX34451
RECOMMENDED FOR NEW DESIGNSPMBus 16-Channel V/I Monitor and 12-Channel Sequencer/Marginer
Provides Unparalleled Sequencing, Monitoring, and Fault Logging with PWM Margining
- Part Models
- 8
- 1ku List Price
- Starting From $8.94
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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
Documentation
Data Sheet 1
Design Note 1
Product Selector Card 1
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+ | LFCSP | ||
| MAX34451ETNA2+T | LFCSP | ||
| MAX34451ETNA3+ | LFCSP | ||
| MAX34451ETNA3+T | LFCSP | ||
| MAX34451ETNA4+ | LFCSP | ||
| MAX34451ETNA4+T | LFCSP | ||
| MAX34451ETNA6+ | LFCSP | ||
| MAX34451ETNA6+T | LFCSP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Sep 16, 2023 - 2379 WAFER FAB |
||
| MAX34451ETNA2+ | PRODUCTION | |
| MAX34451ETNA2+T | PRODUCTION | |
| MAX34451ETNA3+ | PRODUCTION | |
| MAX34451ETNA3+T | PRODUCTION | |
| MAX34451ETNA4+ | PRODUCTION | |
| MAX34451ETNA4+T | PRODUCTION | |
|
Jul 8, 2020 - 2003 DESIGN |
||
| MAX34451ETNA2+ | PRODUCTION | |
| MAX34451ETNA2+T | PRODUCTION | |
| MAX34451ETNA3+ | PRODUCTION | |
| MAX34451ETNA3+T | PRODUCTION | |
| MAX34451ETNA4+ | PRODUCTION | |
| MAX34451ETNA4+T | PRODUCTION | |
|
Apr 20, 2026 - 2571D PIN/ERRATA |
||
| MAX34451ETNA2+T | PRODUCTION | |
| MAX34451ETNA4+T | PRODUCTION | |
| MAX34451ETNA6+T | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Request a Driver/SoftwareHardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Power System Management (PSM) & Sequencers 4 | ||
| MAX34461 | Obsolete | 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 |
| Temperature Sensors 1 | ||
| DS75LV | PRODUCTION | Digital Thermometer and Thermostat |
Tools & Simulations
Software Development 1
Evaluation Kits
Evaluation Kit for the MAX34451