PAC1952 Series

Dual DC Power Monitor, 16-bit, 2 Alerts, I2C

Catalog

Dual DC Power Monitor, 16-bit, 2 Alerts, I2C

Part	Function	Package / Case	Supplier Device Package	Accuracy	Mounting Type	Sensing Method	Voltage - Input [Min]	Voltage - Input [Max]	Operating Temperature [Min]	Operating Temperature [Max]
Microchip Technology PAC1952T-1E/4MX	Current/Voltage Monitor	16-VFQFN Exposed Pad	16-VQFN (3x3)	1 %	Surface Mount Wettable Flank	High-Side	2.7 V	5.5 V	-40 °C	125 °C
Microchip Technology PAC1952T-1E/4MXVAO	Current/Voltage Monitor	16-VFQFN Exposed Pad	16-VQFN (3x3)	1 %	Surface Mount Wettable Flank	High-Side	2.7 V	5.5 V	-40 °C	125 °C
Microchip Technology PAC1952T-2E/4MXVAO	Current/Voltage Monitor	16-VFQFN Exposed Pad	16-VQFN (3x3)	1 %	Surface Mount Wettable Flank	Low-Side	2.7 V	5.5 V	-40 °C	125 °C
Microchip Technology PAC1952T-2E/4MX	Current/Voltage Monitor	16-VFQFN Exposed Pad	16-VQFN (3x3)	1 %	Surface Mount Wettable Flank	Low-Side	2.7 V	5.5 V	-40 °C	125 °C

Catalog

Dual DC Power Monitor, 16-bit, 2 Alerts, I2C

Key Features

• High-Side/Low-Side Current Monitor with 2 Channels* 100 mV Full-Scale Range for Sense Current (Configurable to 50 mV)

• * 16-Bit Resolution on Sense Current

• * External Sense Resistor Sets the Full-Scale Current Range

• * Very Low Input Current Simplifies Routing

•

• Voltage Monitor with Wide VBUS Range* 0V to 32V FSR (Configurable to 16V)

• * 16-Bit Resolution for Voltage Measurements

•

• 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 Resulta for Energy Measurement

• * User Programmable Sampling Rates: 8, 64, 256, 1024 SPS

•

• 2.7V to 5.5V Supply Operation* 1.62-5.5V 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 Accumu lator Accumulates VSENSE Values

Description

The PAC1952 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 PAC1952: the PAC1952-1 devices are for high-side current sensing and the PAC1952-2 devices are for low-side current sensing.