ISL28022

Precision Digital Power Monitor

OVERVIEW

The ISL28022 is a bidirectional high-side and low-side digital current sense and voltage monitor with serial interface. The device monitors current and voltage and provides the results digitally along with calculated power. The ISL28022 provides tight accuracy of less than 0.3% for both voltage and current monitoring over the entire input range. The digital power monitor has configurable fault thresholds and measurable ADC gain ranges.

The ISL28022 handles common-mode input voltage ranging from 0V to 60V. The wide range permits the device to handle telecom, automotive and industrial applications with minimal external circuitry. Both high- and low-side ground sensing applications are easily handled with the flexible architecture.

The ISL28022 consumes an average current of just 700μA and is available in a 10 Ld MSOP package. The ISL28022 is also offered in a space saving 16 Ld QFN package. The part operates across the extended temperature range from -40°C to +125°C

KEY FEATURES

  • Bus voltage sense range: 0V to 60V
  • 16-bit ΣΔADC monitors current and voltage
  • Voltage measuring error: <0.3%
  • Current measuring error: <0.3%
  • Handles negative system voltage
  • Overvoltage/undervoltage and current fault monitoring
  • I2C/SMBus interface
  • Wide VCC range: 3V to 5.5V
  • ESD (HBM): 8kV
  • Supports high speed I2C: 3.4MHz

BLOCK DIAGRAM

 Block Diagram

PARAMETRICS

Parameters
ISL28022
Basic Information
Production Status
Mass Production
VS (min)
3 V
VS (max)
5.5 V
IS (per amp)
0.7 mA
PSRR (dB)
105
Output
I2C
Gain Error/Measurement Error Max
0.3
Max Offset Voltage
75 µV
CMRR (dB)
130
Common Mode Input Range (min)
0 V
Common Mode Input Range (max)
60V
Qualification Level
Standard
Can Sample
YES
Temperature Range
-40 to +125

Design Resources and Tools

Design Tool

 PowerNavigator Software

Configure and monitor digital-DC devices. Easily change features and functions of your power supply design with a simple GUI.

Design

2:16
Learn how to use the ISL28025 digital power monitor to monitor input current of the digital point of load regulator using PowerNavigator.
2:16
Learn how to use the ISL28025 digital power monitor to monitor input current of the digital point of load regulator using PowerNavigator.
2:16
Learn how to use the ISL28025 digital power monitor to monitor input current of the digital point of load regulator using PowerNavigator.

Evaluation Tools

ISL2802xEVKIT1Z Digital Power Monitor Eval Kits

Evaluation Kit

ISL2802xEVKIT1Z

The ISL2802xEVKIT1Z digital power monitor evaluation kits demonstrate the high accuracy and wide voltage range of ISL28022, ISL28023, ISL28025.

ISL2802xEVKIT1Z Evaluation Kit Video Series

5:17
This video explains how to get your own ISL28022 digital power monitor evaluation kit, download software, and connect the RLoad board.
9:03
Learn how to connect the ISL28022 evaluation board to the dongle board and begin using your monitoring software.
14:04
Learn how to set up the ISL28023 digital power monitor evaluation kit to measure the voltage and current performance of the ISL85415 buck regulator.
12:10
Learn how to use the ISL28025 digital power monitor evaluation kit to measure the voltage and current performance of the ISL9110 buck-boost regulator.
5:17
This video explains how to get your own ISL28022 digital power monitor evaluation kit, download software, and connect the RLoad board.
9:03
Learn how to connect the ISL28022 evaluation board to the dongle board and begin using your monitoring software.
14:04
Learn how to set up the ISL28023 digital power monitor evaluation kit to measure the voltage and current performance of the ISL85415 buck regulator.
12:10
Learn how to use the ISL28025 digital power monitor evaluation kit to measure the voltage and current performance of the ISL9110 buck-boost regulator.
5:17
This video explains how to get your own ISL28022 digital power monitor evaluation kit, download software, and connect the RLoad board.
9:03
Learn how to connect the ISL28022 evaluation board to the dongle board and begin using your monitoring software.
14:04
Learn how to set up the ISL28023 digital power monitor evaluation kit to measure the voltage and current performance of the ISL85415 buck regulator.
12:10
Learn how to use the ISL28025 digital power monitor evaluation kit to measure the voltage and current performance of the ISL9110 buck-boost regulator.

ISL28022EV1Z
Digital Power Monitor 8 Site Evaluation Kit

Evaluation Kit

ISL28022EV1Z

The ISL28022EV1Z eval board has 8 sites and a microcontroller that is responsible for the data transaction and config for each ISL28022 DPM.

ISL28022EV1Z Evaluation Kit Video Series

7:19
Get a brief tour of the ISL28022 eight site evaluation platform, download the software and start using the kit.
2:27
This video demonstrates how a simple resistor divider can be used to measure current and power with the ISL28022 digital power monitor.
4:56
This video demonstrates how to save your performance data using the ISL28022 digital power monitor.
7:19
Get a brief tour of the ISL28022 eight site evaluation platform, download the software and start using the kit.
2:27
This video demonstrates how a simple resistor divider can be used to measure current and power with the ISL28022 digital power monitor.
4:56
This video demonstrates how to save your performance data using the ISL28022 digital power monitor.
7:19
Get a brief tour of the ISL28022 eight site evaluation platform, download the software and start using the kit.
2:27
This video demonstrates how a simple resistor divider can be used to measure current and power with the ISL28022 digital power monitor.
4:56
This video demonstrates how to save your performance data using the ISL28022 digital power monitor.

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