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PAC1931 Datasheet(PDF) 1 Page - Microchip Technology |
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PAC1931 Datasheet(HTML) 1 Page - Microchip Technology |
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1 / 64 page  2017-2019 Microchip Technology Inc. DS20005850E-page 1 PAC1931/2/3/4 Features • High-Side Current Monitor with One, Two, Three or Four Channels - 100 mV full-scale range for current sense voltage,16-bit resolution - Selectable bidirectional current sense capability, -100 mV to +100 mV range, 16-bit two’s complement (signed) data format - External sense resistor sets full scale current range - Very low input current simplifies routing • Wide Bus Voltage Range for Voltage Monitor - 0V to 32V input common-mode voltage - 16-bit resolution for voltage measurements; 14 bits are used for power calculations • 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 - 48-bit power accumulator register for recording accumulated power data - 24-bit Accumulator Count - User programmable sampling rates of 8, 64, 256 and 1024 samples per second - 17 minutes of power data accumulation minimum at 1024 S/s - Over 36 hours of power data accumulation minimum at 8 S/s • 2.7V to 5.5V Supply Operation - Separate VDD I/O pin for digital I/O - 1.62-5.5V capable SMBus and digital I/O - SMBus 3.0 and I2C Fast Mode Plus (1 Mb/S) • SMBus Address – 16 Options, set with Resistor • No Input Filters Required • ALERT Features that can be Enabled: - ALERT on accumulator overflow - ALERT on Conversion Complete • 4 ×4 ×0.5 mm UQFN Package • 2.225 × 2.17 mm WLCSP Package Applications • Embedded Computing •Networking • FPGA Systems • Automotive • Low Voltage/High Power – AI, GPU • Industrial •Linux® Applications • Notebook and Tablet Computing • Cloud, Linux and Server Computing • Optical Networking Modules Computing Platform Support •Windows® 10 Driver • Linux Driver • Python™ Script Description The PAC1931/2/3/4 are one, two, three and four-channel power and energy monitoring devices. 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. This enables energy monitoring with integration periods from 1 ms up to 36 hours or longer. Bus voltage, sense resistor voltage and accumulated proportional power are stored in registers for retrieval by the system master or Embedded Controller. 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 PAC1931/2/3/4 device family uses real time calibration to minimize offset and gain errors. No input filters are required for this device. Single/Multi-Channel DC Power/Energy Monitor with Accumulator |
Similar Part No. - PAC1931 |
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Similar Description - PAC1931 |
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