The ISL28025 is a bidirectional high-side and low-side digital current sense and voltage monitor with a serial interface. The device monitors power supply current and voltage, which provides the digital results along with calculated power. The ISL28025 provides tight accuracy of less than 0. 1% for both voltage and current monitoring. The VCC power can either be externally supplied or internally regulated, which allows the ISL28025 to handle a common-mode input voltage range from 0V to 60V. The wide range permits the device to handle telecom, automotive and industrial applications with minimal external circuitry. An 8-bit voltage DAC enable DC/DC converter output voltage margining (20 Pin QFN) Fault indication includes Bus Voltage window and over-current fast fault logic indication. The ISL28025 includes an integrated temperature sensor for monitoring. The ISL28025 serial interface is PMBus compatible and operates down to 1. 2V. It draws an average current of just 1. 3mA and is available in the space saving 16 ball WLCSP package. It is also available in a 20 lead QFN 4x4 (1. 85SQmm EPAD) The parts operate across the full industrial temperature range from -40°C to +125°C.


  • Bus voltage sense range: 0V to 60V
  • Voltage gain error: 0.05%
  • Current gain error: 0.05%
  • High or low (RTN) side sensing
  • Bidirectional current sensing
  • Auxiliary low voltage input channel
  • ΔΣADC, 16-bit native resolution
  • Programmable averaging modes
  • Internal 3.3V regulator
  • Internal temperature sense
  • Over-voltage/undervoltage and current fault monitoring with 500ns detection delay
  • 8-bit voltage output DAC (20 Pin QFN)
  • I2C/SMBus/PMBus interface that handles 1.2V supply
  • 55 I2C slave addresses


  • Data processing servers
  • DC power distribution
  • Telecom equipment
  • Portable communication equipment
  • DC/DC, AC/DC converters
  • Automotive power

Product Options

Part Number Part Status Pkg. Type Carrier Type MOQ Buy Sample
Active WLCSP-TCURDL Reel 3000
Active WLCSP-TCURDL Reel 250
Active WLCSP-TCURDL Reel 3000
Active WLCSP-TCURDL Reel 250
Active QFN Tube 75
Active QFN Reel 6000
Active QFN Reel 250

Documentation & Downloads

Title language Type Format File Size Date
Datasheets & Errata
ISL28025 Datasheet Datasheet PDF 3.15 MB
User Guides & Manuals
ISLUSBEVAL1Z User's Manual Manual PDF 257 KB
ISL28025EVKIT1Z User Guide Manual PDF 2.38 MB
Application Notes & White Papers
Sensing Elements for Current Measurements 简体中文 White Paper PDF 413 KB
AN1993: Voltage Feedback versus Current Feedback Operational Amplifiers Application Note PDF 564 KB
AN1955: Design Ideas for Intersil Digital Power Monitors Application Note PDF 1.32 MB
AN1694: The Four Basic Building Blocks of an Op Amp Application Note PDF 357 KB
PCN21005 - Alternate assembly facility of the listed Renesas DFN / QFN / TDFN / TQFN packaged products Product Change Notice PDF 158 KB
iSim:PE Software v8.40 Software EXE 157.43 MB
Production Configuration Utility v5.4.139 Software ZIP 120.25 MB
PowerNavigator™ Software v5.4.139 Software ZIP 96.49 MB
ISL28025EVKIT1Z Design Files Design File ZIP 869 KB
Analog ICs Brochure 日本語 Brochure PDF 4.20 MB
PIN19028 - Q3 Cy 19 Price Increase Notice Price Increase Notice PDF 208 KB
ISL28025FI60Z 60v DPM iSim:PE Model Schematic SXSCH 98 KB
ISL28025FI12Z 12v DPM iSim:PE Model Schematic SXSCH 97 KB
TB514: Operational Amplifier Basics Other PDF 519 KB
ISL28023EVKIT1Z, ISL28025EVKIT1Z Evaluation Kit Software Library EXE 26.24 MB
ISL2802x DPM Open Source Device Code Library ZIP 7.43 MB

Software & Tool Pages

Title Type Description Company
PowerNavigator Software Software Package Renesas' PowerNavigator™ software allows simple configuration and monitoring of multiple Digital-DC devices using a PC with a USB interface. Renesas
iSim:PE Offline Simulation Tool Simulator iSim Personal Edition (iSim:PE) speeds the design cycle and reduces risk early in any project, identifying parts that can be used in current as well as next-generation designs. Renesas

Boards & Kits

Part Number Title Type Company
ISL28025EVKIT1Z High Precision Digital Power Monitor Eval Kit Evaluation Renesas