Power monitoring IC has precise measurement and programmable current-sensing

Mouser now stocks the MAX44299 low-side current, voltage and power monitoring IC from Maxim Integrated. The MAX44299 offers power, current, and voltage monitoring plus reference with precise measurement and programmable current-sensing of full-scale voltages of 5mV, 10mV and 20mV. With its wide single supply voltage range from 3V to 5.5V, the device allows simple sharing of supplies with either an ADC or a microcontroller, and is an ideal solution to improve measurement quality while saving cost and space in a variety of power monitoring applications. The device offers instantaneous power with accurate power measurement of less than 1.1 percent of reading total error. It features three outputs, all of which are scaled to a full-scale current of 100µA. The device's reference output allows an additional output current of 100µA, which engineers can set as a reference voltage for an ADC being used to measure power, voltage, and current signals. Having the device use currents rather than voltage to convey the measured signals to the ADC also avoids any errors caused by voltage drops across the parasitic resistance of the PCB — a significant factor for high-current systems. The 16-bump, 2.4mm × 2.4mm IC is specified at a temperature range from 0C to +85C, and is ideally suited for many power monitoring applications, including power monitoring and management data centre and telecom systems, renewable energy systems and smart battery packs and chargers. The device is also supported by the MAX44299EVKIT evaluation kit. The evaluation kit is preconfigured with the CSA full-scale input voltage range (VSENSE) of 10mV and 100µA of output current ranges, and can be reconfigured to 10mV/5mV of full-scale VSENSE or 50µA of output current.