Catalog
DC Power Monitor with Accumulation
Key Features
• * 100mV full scale range for current sense voltage
• * Selectable bidirectional measurment capability
• * 0 to 32V input commen-mode voltage
• * External sense resistor sets full scale current range
• * 1% power measurement accuracy over a wide dynamic range
• * On-chip accumulation of 28-bit power results for engergy measurement
• * 48-bit power accumulator 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 operation
• * Separate Vdd for I/O pin
• * 1.62-5.5V capable SMBus and digital I/O
• * SMBus 3.0 and I2C Fast Mode Plus
• * WLCSP 2.225 x 2.17
Description
AI
The PAC1931 is a single 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.