| TVS Diodes | 2 | Active | |
PAC1720Dual High-Side current sensor with I2C, 40V, power calculation, voltage reading, bi-directional, alert, up to 80mV full scale range | Current Regulation/Management | 1 | Active | The PAC1720 is a dual high-side bi-directional current sensing monitor with precision voltage measurement capabilities. Each sensor measures the voltage developed across an external sense resistor to represent the high-side current of a battery or voltage regulator. The PAC1720 also measures the SENSE+ pin voltage and calculates average power over the integration period. The PAC1720 can be programmed to assert the ALERT# pin when high and low limits are exceeded for Current Sense and Bus Voltage. Available in a RoHS compliant 3 X 3mm 10-pin DFN package.
The PAC1720 device is good for measuring dynamic power. The long integration time allows for extending system polling cycles without losing any power consumption information. In addition the alert ensures that transient events are captured between the polling cycles. |
PAC1921High-Side current sensor with configurable analog output, I2C, 32V, power calculation, adjustable for microcontroller voltages | Integrated Circuits (ICs) | 1 | Active | The PAC1921 is a dedicated power-monitoring device with a configurable analog output that can present power, current or voltage. All information is also provided on the 2-wire/I2C© compatible interface. The PAC1921 is designed for power measurement and diagnostic systems that cannot allow for latency when performing high-speed power management. The device is 0.4% accurate for current readings and 1% accurate for power readings.
Measurements are accumulated in large registers, allowing for integration periods of 500 μs to 2.9 seconds. The measurement is averaged and presented on the analog output with a full scale range of 3V, 2V, 1.5V, or 1.0V.
The PAC1921 has a READ/INT pin for host control of the measurement integration period. This pin can be used to synchronize readings of multiple buses between several devices. Data sampling and output attributes, such as the internal ADC resolution (11-bit or 14-bit) and sample rate, are configurable. The device can monitor power rails from 0-32V with a full-scale capability of 100 mV across the sense resistor. No input filters are required for this device. |
PAC1931DC Power Monitor with Accumulation | Integrated Circuits (ICs) | 1 | Active | 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. |
PAC1932Dual DC Power Monitor with Accumulation | Integrated Circuits (ICs) | 1 | Active | The PAC1932 is a dual 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. |
PAC1933Three Channel Power Montitor w/ Accumulation | Integrated Circuits (ICs) | 1 | Active | 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. |
PAC1934Quad DC Power Monitor with Accumulation | PMIC | 2 | Active | The PAC1934 is a four channel power/energy monitor with current sensor amplifier and bus voltage monitors that feed high resolution ADCs. Digital circuitry performs power calculations and energy accumulation. The PAC1934 enables energy monitoring with integration periods from 1 ms to up to 36 hours. 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. The PAC1934 uses real time calibration to minimize offset and gain errors. No input filters are required for this device. |
PAC194116-bit, 9V Power Monitor, 2 alert output, I2C | Integrated Circuits (ICs) | 5 | Active | The PAC1941 is a 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. The device can
detect over/undervoltage, over/undercurrent and overpower against user
programmed limits for each channel and generate ALERT outputs.
There are two versions of the PAC1941: the PAC1941-1 devices are for
high-side current sensing and the PAC1941-2 devices are for low-side
current sensing. |
PAC1942Dual DC Power Monitor, 16-bit, 2 Alerts, I2C | Integrated Circuits (ICs) | 5 | Active | The PAC1942 is a dual 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. The device can
detect over/undervoltage, over/undercurrent and overpower against user
programmed limits for each channel and generate ALERT outputs.
There are two versions of the PAC1942: the PAC1942-1 devices are for
high-side current sensing and the PAC1942-2 devices are for low-side
current sensing. |
PAC1943Triple DC Power Monitor, 16-bit, 2 Alert, I2C | Current Regulation/Management | 1 | Active | The PAC1943 is a triple 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. The device can detect over/undervoltage, over/undercurrent and overpower against user programmed limits for each channel and generate ALERT outputs. |
