Managing and reducing power consumption is crucial in low-voltage, high-power applications such as FPGAs, Graphics Processing Units and embedded systems. Before these devices can manage the power consumption, they first need to accurately measure the consumption from different rails, which is generally costly and need multiple ICs and power configurations. To meet these issues, Microchip introduced new two- and three-channel single chip power monitoring ICs PAC1932/33 which can measure 0 to 32V power accurately. It comes with native 16-bit resolution, providing great flexibility across a wide measurement range.
The PAC1932/33 devices integrate multiple channels in a single package to measure power on a single chip, making it a suitable choice for applications such as Point of Sale (POS) systems, ATMs and building automation. As the measurement of sub 1V to 20V voltage rails normally require separate components to measure each rail efficiently, replacing it in your design can reduce the cost of BOM. Moreover, its ability to measure voltage rails under 1V to as high as 32V also relieves developers from having to reconfigure measurement resolution between low and high current load events.
The devices include two 16-bit Analog-to-Digital Converters (ADCs) that can measure voltage and current simultaneously, enabling developers to extract a true power measurement. As a result, developers can better design systems to efficiently save power.
The PAC1932/33 work in conjunction with Linux® and Windows® 10 software drivers. The PAC1932/33 is register compatible with the ADM00805 evaluation board, which can be used to start development with a graphical user interface reporting VSENSE, VBUS, power and accumulated power.
Pricing and Availability
The two-channel PAC1932 power monitoring IC is available now for sampling and in volume production starting at $0.78 each in 10,000-unit quantities. The three-channel PAC1933 power monitoring IC is available now for sampling and in volume production starting at $0.94 each in 10,000-unit quantities.
For more information, visit: www.microchip.com/PAC1932