SMBus Four-Channel Very Wide Dynamic Range Power Accumulator

Achieve Longer Battery Life in Mobile Devices

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The MAX34417 is a specialized current and voltage monitor used to determine power consumption of portable systems. The device has a very wide dynamic range (20,000:1) that allows for the accurate measurement of power in such systems. The device is 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. The device automatically collects the current-sense and voltage samples and then multiplies those values to obtain a power value it then accumulates. Upon a command from the host, the device transfers the accumulated power samples, as well as the accumulation count, to a set of registers accessible by the host. This transfer occurs without missing a sample and allows the host to retrieve the data not in real-time, but at any time interval.

 Watch video: Introducing the MAX34417 Evaluation Kit

MAX34417: Simplified Block Diagram MAX34417: Simplified Block Diagram Enlarge+

Key Features

  • Enables Code Optimization to Minimize Power Consumption in Portable Platforms
    • Four Power Monitors with Wide 86dB Dynamic Range
    • Measures Both Current and Voltage
    • Low Power Consumption
    • Reduced Power Consumption in Slow Accumulation Mode
    • Power-Down Mode
  • Minimizes Processor Overhead with Autonomous Operation
    • Per Channel 56-Bit Power Accumulators Capture 4.55 Hours of Data at 1024 Samples per Second
    • Per Channel 14-Bit Voltage Registers
  • High-Integration Solution Minimizes Parts Count, PCB Space, and BOM Cost
    • Wide Current Common-Mode Range of 0.5V to 20V
    • Low Full-Scale, Current-Sense Voltage of 100mV
    • As low as 5μV Current-Sense Voltage
    • I2C/SMBus Interface with Bus Timeout
    • Temperature Range: -40°C to +85°C
    • Small, 2mm x 2mm Footprint Wafer-Level Package (WLP) with 16 Bumps at 0.4mm Pitch
  • Ease of Development
    • Evaluation Kit with Advanced GUI Available


  • Servers
  • Smartphones
  • Tablets
  • Ultra Notebooks
Part NumberOutput FormatVCC
Bi-Dir. Curr. SenseVSENSE_FS
ReferenceOper. Temp.
minmaxtyprecomm.@ -3dBSee Notes
MAX34417 Digital2.73.6700No100Adj.
0Bandgap-40 to +85
$3.88 @1k
See All Current Sense Amplifiers (52)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

MAX34417EVKIT: Evaluation Kit for the MAX34417
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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