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ISL28022FRZ Fiches technique(PDF) 1 Page - Renesas Technology Corp |
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ISL28022FRZ Fiches technique(HTML) 1 Page - Renesas Technology Corp |
1 / 32 page FN8386 Rev 8.00 Page 1 of 32 February 4, 2016 FN8386 Rev 8.00 February 4, 2016 ISL28022 Precision Digital Power Monitor DATASHEET 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. Related Literature • AN1955, “Design Ideas for Intersil Digital Power Monitors” • AN1875, “ISL28022 Digital Power Monitor Evaluation Kit (ISL28022EVKIT1Z) • AN1811, “ISL28022 Digital Power Monitor 8 Site Evaluation Kit” Features • Bus voltage sense range . . . . . . . . . . . . . . . . . . . . . . 0V to 60V •16-bit ∑∆ADC 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 Applications •Routers and servers • DC/DC, AC/DC converters • Battery management/charging • Automotive power •Power distribution • Medical and test equipment FIGURE 1. TYPICAL APPLICATION A1 SMBCLK/SCL SMBDAT/SDA VINP VINM GND RSH ADC 16-BIT SW MUX TO µC VOLTAGE REGULATOR VOUT EN ECLK/INT VIN = 0V TO 60V REG MAP VCC VBUS A0 VCC I 2C SMBUS |
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