Catalog
Three Channel Power Montitor w/ Accumulation
Key Features
• Triple High-Side Current Sensor* 100 mV full scale range for current sense voltage
• * Selectable bidirectional measurement capability
• * External sense resistor sets full scale range
• * 0 to 32V Input Common -Mode Voltag
• * 1% Power Measurement Accuracy Over a Wide Dynamic Range
• * On-Chip Accumulation of 28-bit Power Results for Energy Measurement
• * 48-bit power accumulation register
• * Sampling rates of 8, 64, 256, and 1024 samples per second
• * At least 17 minutes of power accumulation data at 1024 samples per second
•
• 2.7V to 5.5V Supply Operation* Separate VDD for I/O pin
• * 1.62V to 5.5V capable SMBus and digital I/O
• * I2C Fast mode plus and SMBus 3.0
• * WLCSP 2.225 x 2.17 or 4x4 uQFN-16
Description
AI
The PAC1933 is a three-channel power monitor and energy monitor that reports on bus voltage and sense voltage 16-bits of resolution. Power is reported as a simultaneous product of two 16-bit independent bus and sense voltages. All registers are accessible through I2C / SMBus including an 8 sample average for reading stability.
