SMBus 4-Channel Wide Dynamic Range Power Accumulator

The MAX34407 is a current and voltage monitor that is specialized for determining power consumption. The device has a wide dynamic range to allow it to accurately measure power in systems that consume small to large amounts of power. 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. The samples are then multiplied to obtain a power value and the power values are then accumulated. Upon a command from the host, the device transfers the accumulated power samples as well as the accumulation count to a set of registers that the host can access. 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

* Smartphones * Tablets * Ultra Notebooks

* Enables Code Optimization to Minimize Power Consumption in Portable Platforms

* Four Power Monitors with Wide 66dB Dynamic Range

* Measures Both Current and Voltage

* Low Power Consumption

* Slow Mode for Reduced Power Consumption

* Power-Down Mode

* Minimizes Processor Overhead with Autonomous Operation

* Per Channel 48-Bit Power Accumulators Capture 17 Minutes of Data at 1024 Samples per Second

* Per Channel 12-Bit Voltage Registers

* High-Integration Solution Minimizes Parts Count, PCB Space, and BOM Cost

* Wide Current Common-Mode Range of 2.5V to 15V

* Low Full-Scale, Current-Sense Voltage of 100mV

* I2C/SMBus Interface

* Temperature Range: -40°C to +85°C

* Small, 2.285mm x 2.185mm Footprint WLP Package with 16 Bumps at 0.5mm Pitch

* Ease of Development

* Evaluation Kit with Advanced GUI Available (MAX34407EVKIT#)

* Windows Driver Available