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PAC194x/5x 16-bit Power Monitor with Alerts
Microchip's PAC194x/5x monitor reports on bus voltage and sense voltage 16-bits of resolution
Microchip Technology's PAC194x/5x is a power 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 eight sample average for reading stability. The device can detect over/undervoltage, over/undercurrent, and overpower against user-programmed limits for each channel and generate ALERT outputs.
Features
- High-side/low-side current monitor
- 100 mV full-scale range (configurable for 50 mV)
- 16-bit resolution
- External sense resistor sets the full-scale current range
- Very low input current simplifies routing
- Voltage monitor with wide VBUS range
- Real-time auto-calibration of offset error for voltage and current
- 1% power measurement accuracy over a wide dynamic range
- On-chip accumulation of 30-bit power results for energy measurement
- User-programmable sampling rates of 8, 64, 256, and 1024
- 5120 SPS for burst mode
- 2.7 to 5.5 supply operation
- 1.62 V to 5.5 V capable I2C/SMBus and digital I/O
- SMBus 3.1 and I2C fast mode plus, 1 Mbps
- High-speed mode (3.4 Mbps)
- Alert on over/undervoltage and current or overpower conditions
- Two independent alert/GPIO pins
- Coulomb counting: when selected, the accumulator accumulates VSENSE values
Published: 2021-10-13
Poland