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MAX34440
PMBus 6-Channel Power-Supply Manager
Power-Supply Manager Provides Unparalleled "Black Box" Failure Logging for Improving System Performance
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Key Features
Applications/Uses
Parametric specs for Power-Supply Sequencers and Voltage Trackers
| # Input Channels | 6 |
| Interface | I2C/SMBus PMBus™ |
| Option | Monitor Sequence |
| VIN (V) (max) | 3.3 |
| Oper. Temp. (°C) | -40 to +85 |
| Package/Pins | TQFN/40 |
| Budgetary Price (See Notes) | 3.18 |
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Simplified Block Diagram
Technical Docs
| Data Sheet | PMBus 6-Channel Power-Supply Manager | Mar 10, 2016 | |
| App Note | Add a "Black Box" Fault Logger to Your "Big (or Small) Box" System | ||
| Tutorial | Power-Supply Solutions for Xilinx FPGAs | ||
| Tutorial | Power-Supply Solutions for Altera FPGAs | ||
| App Note | Choose the Right Power Supply for Your FPGA | ||
| App Note | Level Shifting to Control Power MOSFETs |
How to Debug PMBus and SMBus Issues - Part 1: Communication
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
Parameters
Parametric specs for Power-Supply Sequencers and Voltage Trackers
| # Input Channels | 6 |
| Interface | I2C/SMBus PMBus™ |
| Option | Monitor Sequence |
| VIN (V) (max) | 3.3 |
| Oper. Temp. (°C) | -40 to +85 |
| Package/Pins | TQFN/40 |
| Budgetary Price (See Notes) | 3.18 |
Key Features
- 6 Channels of Power-Supply Management
- Voltage Measurement/Monitoring
- Differential 12-Bit 1% Accurate ADC
- Min/Max Threshold Excursion Detection
- Supports Current Monitoring with External Current-Sense Amplifier
- Automatic Closed-Loop Margining
- Programmable Up and Down Sequencing
- Power-Good Output
- Voltage Measurement/Monitoring
- Supports Up to Eight Temperature Sensors
- Two Remote Diode Temperature Sensors
- Five Local Temperature Sensors
- One Internal Temperature Sensor
- Fault Detection on All Temp Sensors
- PMBus™-Compliant Command Interface
- I2C/SMBus-Compatible Serial Bus with Bus Timeout Function
- On-Board Nonvolatile Fault Logging and Default Configuration Setting
- No External Clocking Required
- +3.3V Supply Voltage
Applications/Uses
- Base Stations
- Industrial Controls
- Network Switches/Routers
- Servers
- Smart Grid Network Systems
Description
The MAX34440 is a complex system monitor that can manage up to six power supplies. The power-supply manager monitors the power-supply output voltage and constantly checks for user-programmable overvoltage and undervoltage thresholds. It can also margin the power-supply output voltage up or down to a user-programmable level. The margining is performed in a closed-loop arrangement whereby the device automatically adjusts a pulse-width-modulated (PWM) output and then measures the resultant output voltage. The power-supply manager can also sequence the supplies in any order at both power-up and power-down. With the addition of an external current-sense amplifier, the device can also monitor currents.
Technical Docs
| Data Sheet | PMBus 6-Channel Power-Supply Manager | Mar 10, 2016 | |
| App Note | Add a "Black Box" Fault Logger to Your "Big (or Small) Box" System | ||
| Tutorial | Power-Supply Solutions for Xilinx FPGAs | ||
| Tutorial | Power-Supply Solutions for Altera FPGAs | ||
| App Note | Choose the Right Power Supply for Your FPGA | ||
| App Note | Level Shifting to Control Power MOSFETs |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
Request a Quote