LOAD DATASHEET ISL28022 FN8386 Rev 8.00 Precision Digital Power Monitor February 4, 2016 The ISL28022 is a bidirectional high-side and low-side digital Features current sense and voltage monitor with serial interface. The Bus voltage sense range 0V to 60V device monitors current and voltage and provides the results digitally along with calculated power. The ISL28022 provides 16-bit ADC monitors current and voltage tight accuracy of less than 0.3% for both voltage and current Voltage measuring error . <0.3% monitoring over the entire input range. The digital power Current measuring error . <0.3% monitor has configurable fault thresholds and measurable ADC gain ranges. Handles negative system voltage The ISL28022 handles common-mode input voltage ranging Overvoltage/undervoltage and current fault monitoring from 0V to 60V. The wide range permits the device to handle 2 I C/SMBus interface telecom, automotive and industrial applications with minimal Wide V range 3V to 5.5V external circuitry. Both high- and low-side ground sensing CC applications are easily handled with the flexible architecture. ESD (HBM) . 8kV 2 The ISL28022 consumes an average current of just 700A and is Supports high speed I C . 3.4MHz available in a 10 Ld MSOP package. The ISL28022 is also offered in a space saving 16 Ld QFN package. The part operates across Applications the extended temperature range from -40C to +125C. Routers and servers DC/DC, AC/DC converters Related Literature Battery management/charging AN1955, Design Ideas for Intersil Digital Power Monitors Automotive power AN1875, ISL28022 Digital Power Monitor Evaluation Kit (ISL28022EVKIT1Z) Power distribution AN1811, ISL28022 Digital Power Monitor 8 Site Evaluation Medical and test equipment Kit VCC V = 0V TO 60V IN VBUS GND VINP R ADC SH SW 16-BIT MUX VINM SMBCLK/SCL 2 I C TO C SMBUS SMBDAT/SDA VOUT VOLTAGE REGULATOR REG V CC MAP A0 EN A1 ECLK/INT FIGURE 1. TYPICAL APPLICATION FN8386 Rev 8.00 Page 1 of 32 February 4, 2016ISL28022 Table of Contents Block Diagram 3 Ordering Information 3 Pin Configurations . 4 Pin Descriptions . 4 Absolute Maximum Ratings . 6 Thermal Information . 6 Recommended Operating Conditions 6 Electrical Specifications . 6 Typical Performance Curves 9 Functional Description 13 Overview . 13 Detailed Description . 13 Functional Pin Descriptions . 13 Register Descriptions 14 Serial Interface 19 Protocol Conventions 19 SMBus Support . 19 Device Addressing . 21 Write Operation . 22 Read Operation . 22 Broadcast Addressing 22 2 C Clock Speed . 22 I Signal Integrity . 23 Measurement Stability vs Acquisition Time 23 Fast Transients 23 External Clock . 24 Over-Ranging . 24 Shunt Resistor Selection 24 Lossless Current Sensing (DCR) 26 Layout . 26 A Trace as a Sense Resistor . 28 Revision History 30 About Intersil 30 Package Outline Drawing 31 M10.118 . 31 L16.3x3B 32 FN8386 Rev 8.00 Page 2 of 32 February 4, 2016