Microchip PAC1951 Manual

Microchip Ikke kategoriseret PAC1951

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 2021-2022

Microchip Technology Inc. and its subsidiaries

DS20006539D-page 1

PAC195X

Features

• High-Side/Low-Side Current Monitor with One,

Two, Three or Four Channels:

- 100 mV Full-Scale Range (FSR) for current

sense voltage

- Programmable FSR: -50 mv to +50 mv

- 16-bit resolution for current measurements

- External sense resistor sets the full-scale

current range

- Very low input current simplifies routing

• Voltage Monitor with Wide V

BUS

Range

- 0V to 32V FSR

- 16V programmable V

BUS

option

- 16-bit resolution for voltage measurements

•V

SOURCE

Can Be Applied before V

Is Applied

• 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 SPS

- 5120 SPS for a single channel in Burst mode

• 2.7V to 5.5V Supply Operation

- 1.62-5.5V capable I

C/SMBus and digital I/O

- SMBus 3.1 and I

C Fast Mode Plus, 1 Mbps

- High-Speed mode (3.4 Mbps)

• SMBus Address – 16 Options, Set with Resistor

• ALERT Features that Can Be Enabled:

- ALERT on conversion complete

- ALERT on Over/Undervoltage and Current or

Overpower conditions

• Coulomb Counting: When Selected, the

Accumulator Accumulates V

SENSE

Values.

• 8X Averaging Mode for Single-Shot

Measurements to Reduce Noise and Offset

• Two Independent ALERT

/GPIO pins

• AEC-Q100 Qualified (VQFN)

• Available Packages:

- 3 x 3 mm 16-Lead VQFN with wettable flanks

- 2.225 x 2.17 mm 16-Lead WLCSP

Applications

• Embedded Computing

•Networking

•FPGA Systems

• Low-Voltage/High-Power – AI, GPU

• Industrial

•Linux

Applications

• Notebook and Tablet Computing

• Cloud, Linux and Server Computing

• Optical Networking Modules

• Automotive

Computing Platform Support

• Windows

10 Driver

• Arduino Library

• Python™ Script

• MCC Library

Description

The PAC195X products are one, two, three and

four-channel energy monitors, with bus voltage moni-

tors and current sense amplifiers that feed

high-resolution ADCs. There are two versions of the

PAC195X: the PAC195X-1 devices are for high-side

current sensing and the PAC195X-2 devices are for

low-side current sensing or floating VBUS applications.

Digital circuitry performs power calculations and

energy accumulation. This enables energy monitoring

with integration periods up to one year or longer. Bus

voltage, sense resistor voltage and accumulated pro-

portional power are stored in registers for retrieval by

the system host or embedded controller. The PAC195X

devices have a set of digital comparators that allow the

user to detect over/undervoltage, over/undercurrent

and overpower against user programmed limits for

each channel and generate an ALERT when the

threshold is exceeded.

The sampling rate and energy integration period can be

controlled over SMBus or I

C. Active channel selection,

single-shot measurements and other controls are also

configurable by the SMBus or I

C. The PAC195X

device family uses real-time calibration to minimize the

offset error. No input filters are required for this device.

Single/Multi-Channel Power Monitor

with Accumulator, 32V Full-Scale Range

Produkt Specifikationer

Mærke:	Microchip
Kategori:	Ikke kategoriseret
Model:	PAC1951

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