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SMBus Four-Channel High Dynamic
Range Power Accumulator
MAX34417
General Description
Benefits and Features
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
● 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
2
monitored with a standard I C/SMBus serial interface.
• Reduced Power Consumption in Slow Accumulation
Mode
• Power-Down Mode
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.
● 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
Applications
● Tablets
• Low Full-Scale, Current-Sense Voltage of 100mV
• As low as 5μV Current-Sense Voltage
● Ultra Notebooks
● Smartphones
● Servers
2
• I C/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
Ordering Information appears at end of data sheet.
● Ease of Development
• Evaluation Kit with Advanced GUI Available
19-100222; Rev 4; 5/23
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