SPRSPC3 February 2026 AM13E23019
ADVANCE INFORMATION
The Comparator Subsystem (CMPSS) consists of analog comparators and supporting circuits that are useful for power applications such as peak current mode control, switched-mode power supply, power factor correction, voltage trip monitoring, and so forth.
The comparator subsystem is built around a number of modules. Each subsystem contains two comparators, two reference 8-bit DACs, and two digital filters. Comparators are denoted "H" or "L" within each module where “H” and “L” represent high and low, respectively. Each comparator generates a digital output which indicates whether the voltage on the positive input is greater than the voltage on the negative input. The positive input of the comparator is driven from an external pin. The negative input can be driven by an external pin or by the programmable reference 10-bit DAC. Each comparator output passes through a programmable digital filter that can remove spurious trip signals. An unfiltered output is also available if filtering is not required.
Each CMPSS includes: