MAX34407EWE+ Analog Devices

MAX34407 SMBus 4-Channel Wide Dynamic Range Power Accumulator General Description Features and Benefits The MAX34407 is a current and voltage monitor that Enables Code Optimization to Minimize Power is specialized for determining power consumption. The Consumption in Portable Platforms device has a wide dynamic range to allow it to accurately Four Power Monitors with Wide 66dB Dynamic Range measure power in systems that consume small to large amounts of power. The device is configured and moni- Measures Both Current and Voltage 2 Low Power Consumption tored with a standard I C/SMBus serial interface. The unidirectional current sensor offers precision high-side Slow Mode for Reduced Power Consumption Power-Down Mode operation with a low full-scale sense voltage. The device automatically collects the current-sense and voltage Minimizes Processor Overhead with Autonomous samples. The samples are then multiplied to obtain a Operation power value and the power values are then accumulated. Per Channel 48-Bit Power Accumulators Capture Upon a command from the host, the device transfers the 17 Minutes of Data at 1024 Samples per Second accumulated power samples as well as the accumulation Per Channel 12-Bit Voltage Registers count to a set of registers that the host can access. This High-Integration Solution Minimizes Parts Count, transfer occurs without missing a sample and allows the PCB Space, and BOM Cost host to retrieve the data not in real time, but at any time Wide Current Common-Mode Range of 2.5V to 15V interval. Low Full-Scale, Current-Sense Voltage of 100mV 2 I C/SMBus Interface Applications Temperature Range: -40C to +85C Tablets Small, 2.285mm x 2.185mm Footprint WLP Package Ultra Notebooks with 16 Bumps at 0.5mm Pitch Smartphones Ease of Development Evaluation Kit with Advanced GUI Available (MAX34407EVKIT ) Windows Driver Available Ordering Information appears at end of data sheet. 19-7431 Rev 1 7/17MUX MAX34407 SMBus 4-Channel Wide Dynamic Range Power Accumulator Typical Application Circuit and Block Diagram 2.7V TO 3.6V AUTOMATIC V OSCILLATOR DD SEQUENCING POWER CONTROL CHANNEL 4 GND V REF CURRENT CHANNEL 3 FLOW CURRENT CHANNEL 2 (16 BIT) POWER ADC CHANNEL 1 RESULT IN+ (12 BIT) (28 BIT) VOLTAGE (12 BIT) R SENSE IN- POWER X1/X16 ACCUMULATOR 1.6V TO 3.6V (48 BIT) V IO REGISTERS MAX34407 SCL SDA DIGITAL CONTROL PDN SMBUS INTERFACE INTERFACE SLOW ADDR RADDR Maxim Integrated 2 www.maximintegrated.com