SMBus Four-Channel Very Wide Dynamic Range Power Accumulator

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.

Applications

* Servers

* Smartphones

* Tablets

* Ultra Notebooks

* 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