Microchip Technology

PAC194x/5x 16-bit Power Monitor with Alerts

Microchip's PAC194x/5x monitor reports on bus voltage and sense voltage 16-bits of resolution

Image of Microchip Technology's PAC194x/5x 16-bit Power Monitor with AlertsMicrochip 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

Eval Boards

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
EVAL BOARD FOR PAC1944EV40S84AEVAL BOARD FOR PAC194435 - Immediate$44.64View Details
EVAL BOARD FOR PAC1954DT100119EVAL BOARD FOR PAC19545 - Immediate$44.64View Details

PAC194x 16-bit Power Monitor with Alerts

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
IC CURRENT/VOLT MON 1% 16WLCSPPAC1941T-1E/J6CXIC CURRENT/VOLT MON 1% 16WLCSP3281 - Immediate$1.16View Details
IC CURRENT/VOLT MON 1% 16VQFNPAC1941T-1E/4MXIC CURRENT/VOLT MON 1% 16VQFN2476 - Immediate$1.16View Details
IC CURRENT/VOLT MON 1% 16VQFNPAC1941T-2E/4MXIC CURRENT/VOLT MON 1% 16VQFN0 - Immediate$1.16View Details
IC CURRENT/VOLT MON 1% 16WLCSPPAC1941T-2E/J6CXIC CURRENT/VOLT MON 1% 16WLCSP4997 - Immediate$1.16View Details
IC CURRENT/VOLT MON 1% 16VQFNPAC1942T-1E/4MXIC CURRENT/VOLT MON 1% 16VQFN3136 - Immediate$1.48View Details
IC CURRENT/VOLT MON 1% 16WLCSPPAC1942T-1E/J6CXIC CURRENT/VOLT MON 1% 16WLCSP5089 - Immediate$1.48View Details
IC CURRENT/VOLT MON 1% 16VQFNPAC1942T-2E/4MXIC CURRENT/VOLT MON 1% 16VQFN0 - Immediate$1.94View Details
IC CURRENT/VOLT MON 1% 16WLCSPPAC1942T-2E/J6CXIC CURRENT/VOLT MON 1% 16WLCSP4944 - Immediate$1.48View Details
IC CURRENT/VOLT MON 1% 16VQFNPAC1943T-E/4MXIC CURRENT/VOLT MON 1% 16VQFN301 - Immediate$1.79View Details
IC CURRENT/VOLT MON 1% 16WLCSPPAC1943T-E/J6CXIC CURRENT/VOLT MON 1% 16WLCSP5000 - Immediate$1.44View Details
IC CURRENT/VOLT MON 1% 16VQFNPAC1944T-E/4MXIC CURRENT/VOLT MON 1% 16VQFN6505 - Immediate$2.02View Details
IC CURRENT/VOLT MON 1% 16WLCSPPAC1944T-E/J6CXIC CURRENT/VOLT MON 1% 16WLCSP3892 - Immediate$2.02View Details

PAC195x 16-bit Power Monitor with Alerts

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
IC CURRENT/VOLT MON 1% 16WLCSPPAC1952T-1E/J6CXIC CURRENT/VOLT MON 1% 16WLCSP9765 - Immediate$1.48View Details
IC CURRENT/VOLT MON 1% 16VQFNPAC1952T-2E/4MXIC CURRENT/VOLT MON 1% 16VQFN1707 - Immediate$1.48View Details
IC CURRENT/VOLT MON 1% 16WLCSPPAC1951T-1E/J6CXIC CURRENT/VOLT MON 1% 16WLCSP4973 - Immediate$1.16View Details
IC CURRENT/VOLT MON 1% 16VQFNPAC1951T-1E/4MXIC CURRENT/VOLT MON 1% 16VQFN2043 - Immediate$1.16View Details
IC CURRENT/VOLT MON 1% 16VQFNPAC1951T-2E/4MXIC CURRENT/VOLT MON 1% 16VQFN2724 - Immediate$1.16View Details
IC CURRENT/VOLT MON 1% 16WLCSPPAC1951T-2E/J6CXIC CURRENT/VOLT MON 1% 16WLCSP4710 - Immediate$1.16View Details
IC CURRENT/VOLT MON 1% 16VQFNPAC1952T-1E/4MXIC CURRENT/VOLT MON 1% 16VQFN6370 - Immediate$1.48View Details
IC CURRENT/VOLT MON 1% 16WLCSPPAC1952T-2E/J6CXIC CURRENT/VOLT MON 1% 16WLCSP0 - Immediate$1.94View Details
IC CURRENT/VOLT MON 1% 16VQFNPAC1953T-E/4MXIC CURRENT/VOLT MON 1% 16VQFN5449 - Immediate$1.79View Details
IC CURRENT/VOLT MON 1% 16WLCSPPAC1953T-E/J6CXIC CURRENT/VOLT MON 1% 16WLCSP265 - Immediate$1.79View Details
IC CURRENT/VOLT MON 1% 16VQFNPAC1954T-E/4MXIC CURRENT/VOLT MON 1% 16VQFN0 - Immediate$2.02View Details
IC CURRENT/VOLT MON 1% 16WLCSPPAC1954T-E/J6CXIC CURRENT/VOLT MON 1% 16WLCSP0 - Immediate$2.02View Details
Published: 2021-10-13

Related Product Highlight

PAC195x Power Monitors Microchip Technology's PAC195X devices are energy monitors, with bus voltage monitors and current sense amplifiers that feed high-resolution ADCs.

Related Product Training Modules

PAC194x/PAC195x Multi-Channel Power Monitor Family This presentation will introduce Microchip’s PAC194x and PAC195x multi-channel power monitor family and go over features and benefits.