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REF1925AIDDCR Datasheet(PDF) 17 Page - Texas Instruments |
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REF1925AIDDCR Datasheet(HTML) 17 Page - Texas Instruments |
17 / 31 page ![]() RSHUNT ±ILOAD VBUS + IN+ IN- REF OUT + Bandgap V+ VCC VREF VBIAS VIN EN GND GND VOUT REF19xx INA213B + ± + ± ADC VREF REF1925, REF1930, REF1933, REF1941 www.ti.com SBOS697 – SEPTEMBER 2014 10 Applications and Implementation NOTE Information in the following applications sections is not part of the TI component specification, and TI does not warrant its accuracy or completeness. TI’s customers are responsible for determining suitability of components for their purposes. Customers should validate and test their design implementation to confirm system functionality. 10.1 Application Information The low-drift, bidirectional, single-supply, low-side, current-sensing solution described in this section can accurately detect load currents from –2.5 A to 2.5 A. The linear range of the output is from 250 mV to 2.75 V. Positive current is represented by output voltages from 1.5 V to 2.75 V, whereas negative current is represented by output voltages from 250 mV to 1.5 V. The difference amplifier is the INA213 current-shunt monitor, whose supply and reference voltages are supplied by the low-drift REF1930. 10.2 Typical Application Figure 45. Low-Side, Current-Sensing Application Copyright © 2014, Texas Instruments Incorporated Submit Documentation Feedback 17 Product Folder Links: REF1925 REF1930 REF1933 REF1941 |
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