PMBus Power-Supply Data Logger

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.

Applications

* Base Stations * Industrial Controls * Network Switches/Routers * Servers * Smart Grid Network Systems

* 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