/
/
/
Voltage Supervisors 
/
Top ![]()
MAX34446
PMBus Power-Supply Data Logger
Detects and Records Out-of-Range Power-Supply Conditions to Determine Failure or Misuse
MyMaxim SubscriptionsProduct Details
Key Features
Applications/Uses
Parametric specs for Power-Supply Sequencers and Voltage Trackers
| # Input Channels | 4 |
| Interface | I2C/SMBus PMBus™ |
| Option | Monitor |
| VIN (V) (max) | 5.5 |
| Oper. Temp. (°C) | -40 to +85 |
| Package/Pins | TQFN/40 |
| Budgetary Price (See Notes) | 3.65 |
View Less
Simplified Block Diagram
Technical Docs
| Data Sheet | PMBus Power-Supply Data Logger | Oct 07, 2013 |
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 | 4 |
| Interface | I2C/SMBus PMBus™ |
| Option | Monitor |
| VIN (V) (max) | 5.5 |
| Oper. Temp. (°C) | -40 to +85 |
| Package/Pins | TQFN/40 |
| Budgetary Price (See Notes) | 3.65 |
Key Features
- Voltage, Current, and Temperature Measurement and Threshold Excursion Detection
- Supports Up to Four Voltage or Current Measurements
- Supports Up to Three Temperature Sensors: Two Remote Diodes Plus an Internal Sensor
- Calculates Power Consumption
- Differential 12-Bit ADC
- PMBus™-Compliant Control Interface
- Power-Good Outputs
- Individual Fault Outputs
- On-Board Nonvolatile Fault Logging and Default Configuration Setting
- I²C/SMBus-Compatible Serial Bus with Bus Timeout Function
- No External Clocking Required
- 2.7V to 5.5V Supply Voltage
- Low Power Consumption
- -40°C to +105°C Temperature Range
- 40-Pin TQFN (6mm x 6mm) Package
Applications/Uses
- Base Stations
- Industrial Controls
- Network Switches/Routers
- Servers
- Smart Grid Network Systems
Description
The MAX34446 data logger for power supplies can monitor voltages for overvoltage and undervoltage, as well as for overcurrent conditions and overtemperature conditions. The device constantly checks for userprogrammable thresholds; when these thresholds are exceeded, the device logs the recent real-time operating conditions in nonvolatile flash memory. The device can monitor up to four voltages or currents, and can monitor three temperature sensors. See the Typical Application Circuit/Block Diagram for more details.
Technical Docs
| Data Sheet | PMBus Power-Supply Data Logger | Oct 07, 2013 |
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