MAX34407 Datasheet, PDF (1/17 Pages) Maxim Integrated Products – Measures Both Current and Voltage

MAX34407
SMBus 4-Channel Wide Dynamic Range
Power Accumulator
General Description
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 moni-
tored 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
●● Tablets
●● Ultra Notebooks
●● Smartphones
Ordering Information appears at end of data sheet.
Features and Benefits
●● 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
19-7431; Rev 0; 11/14