Microchip PAC1931/2/3/4 Single/Multi-Channel DC Power/Energy Monitor
Featuring real-time calibration with no input filters required
Microchip’s PAC193x series features one, two, three and four-channel devices enabling energy monitoring with integration periods from 1 ms up to 36 hours or longer.
The PAC193 family’s bus voltage, sense resistor voltage and accumulated proportional power are stored in registers for retrieval by the system master or Embedded Controller. A high-voltage multiplexer sequentially connects the inputs to a bus voltage monitor and current sense amplifier that feed high-resolution ADCs. Digital circuitry performs power calculations and energy accumulation.
The sampling rate and energy integration period can be controlled over SMBus or I2C. Active channel selection, one-shot measurements and other controls are also configurable by SMBus or I2C.
The whole series uses real-time calibration to minimize offset and gain errors. No input filters are required for this device.
PAC193x Series Features
- High-Side Current Monitor with One, Two, Three or Four Channels
- Wide Bus Voltage Range for Voltage Monitor
- Real Time Auto-Calibration of Offset and Gain Errors for Voltage and Current, No User Adjustment Required
- 1% Power Measurement Accuracy over a Wide Dynamic Range
- On-Chip Accumulation of 28-bit Power Results for Energy Measurement
- 2.7V to 5.5V Supply Operation
- SMBus® Address – 16 Options, set with Resistor
- No Input Filters Required
- ALERT on accumulator overflow & on Conversion Complete
- 4 × 4 × 0.5 mm UQFN Package
- 2.225 × 2.17 mm WLCSP Package
- Embedded Computing
- FPGA Systems
- Low Voltage/High Power – AI, GPU
- Linux® Applications
- Notebook and Tablet Computing
- Cloud, Linux® and Server Computing
- Optical Networking Modules
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