MAX34427/MAX34417: SMBus Dual/Quad Dynamic Range Power Accumulators

The MAX34427/MAX34417 power accumulators are specialized current, voltage, and power monitors used to determine power consumption of systems. Both devices have a very wide dynamic range (20,000:1) that allows for the accurate measurement of power in such systems.

Both the MAX34427/MAX34417devices are configured and monitored with a standard I2C/SMBus serial interface. The unidirectional current sensor offers precision high-side operation with a low full-scale sense voltage.

•  MAX34427: SMBus Dual Channel High Dynamic Range Power Accumulator
•  MAX34417: SMBus Four-Channel Very Wide Dynamic Range Power Accumulator

Key Features and Benefits

•  Smallest multichannel power accumulator and WLP with no orphan pads helps space-constrained applications
•  Lowest sense voltage (down to 5 μV) enables smaller, less expensive resistors
•  Highly accurate power measurement with <3.5% error at VSENSE = 50 µV

Applications

•  Consumer: Tablets, notebooks, smartphones
•  Data Center: Servers

Evaluation Board

The MAX34427/MAX34417 can be evaluated with the MAX34427SHLD.