Catalog excerpts
APPLICATIONS motor control; load detection and management; switch-mode power supplies; over current fault protection; Etc FEATURES and FUNCTIONAL DIAGRAM • AEC-Q100 qualified • 0.8 mQ primary conductor resistance for low power loss and high inrush current withstand capability • Integrated shield virtually eliminates capacitive coupling from current conductor to die, greatly suppressing output noise due to high dv/dt transients • Industry-leading noise performance with greatly improved bandwidth through proprietary amplifier and filter design techniques • High-bandwidth 120 kHz analog output for faster response times in control applications • Filter pin allows user to filter the output for improved resolution at lower bandwidth • Integrated digital temperature compensation circuitry allows for near closed loop accuracy over temperature in an open loop sensor • Small-footprint, low-profile SOIC8 package suitable for space-constrained applications • Filter pin simplifies bandwidth limiting for better resolution at lower frequencies • Single supply operation • Output voltage proportional to AC or DC current • Factory-trimmed sensitivity and quiescent output voltage for • improved accuracy • Chopper stabilization results in extremely stable quiescent output voltage • Nearly zero magnetic hysteresis • Ratio-metric output from supply voltage
Open the catalog to page 1The RH701 current sensor IC is an economical and precise solution for AC or DC current sensing in industrial, automotive, commercial, and communications systems. The small package is ideal for space-constrained applications while also saving costs due to reduced board area. Typical applications include motor control, load detection and management, switched-mode power supplies, and overcurrent fault protection. The device consists of a precise, low-offset, linear Hall sensor circuit with a copper conduction path located near the surface of the die. Applied current flowing through this copper...
Open the catalog to page 2Package LC, 8-Pin SOICN Pin-Out Diagram
Open the catalog to page 41Device may be operated at higher primary current levels, Ip , ambient temperatures, Ta , and internal leadframe temperatures, provided the Maximum Junction Temperature, TJ(max), is not exceeded. 2RF(int) forms an RC circuit via the FILTER pin. 3The sensor 1C will continue to respond to current beyond the range of Ip until the high or low saturation voltage; however, the nonlinearity in this region will be worse than through the rest of the measurement range.
Open the catalog to page 6Preliminary Datasheet REV 1.5 RH70110AU Performance Characteristics: Ta Range l, valid at Ta = -40°c to 150°c, unless otherwise specified 1 Typical values with +/- are 3 sigma values 2 Percentage of IP , with IP = iPR(max). 3 A single part will not have both the maximum/minimum sensitivity error and maximum/minimum offset voltage, as that would violate the maximum/minimum total output error specification. Also, 3 sigma distribution values are combined by taking the square root of the sum of the squares. See Application Information section.
Open the catalog to page 7Preliminary Datasheet REV 1.5 RH70110AB Performance Characteristics: Ta Range l, valid at Ta = -40°c to 150°c, unless otherwise specified 1 Typical values with +/- are 3 sigma values 2 Percentage of IP , with IP = iPR(max). 3 A single part will not have both the maximum/minimum sensitivity error and maximum/minimum offset voltage, as that would violate the maximum/minimum total output error specification. Also, 3 sigma distribution values are combined by taking the square root of the sum of the squares. See Application Information section.
Open the catalog to page 8Preliminary Datasheet REV 1.5 RH70110BU Performance Characteristics: Ta Range l, valid at Ta = -40°c to 150°c, unless otherwise specified 1 Typical values with +/- are 3 sigma values 2 Percentage of IP , with IP = iPR(max). 3 A single part will not have both the maximum/minimum sensitivity error and maximum/minimum offset voltage, as that would violate the maximum/minimum total output error specification. Also, 3 sigma distribution values are combined by taking the square root of the sum of the squares. See Application Information section.
Open the catalog to page 9Preliminary Datasheet REV 1.5 RH70110BB Performance Characteristics: Ta Range l, valid at Ta = -40°c to 150°c, unless otherwise specified Characteristic 1 Typical values with +/- are 3 sigma values 2 Percentage of IP , with IP = iPR(max). 3 A single part will not have both the maximum/minimum sensitivity error and maximum/minimum offset voltage, as that would violate the maximum/minimum total output error specification. Also, 3 sigma distribution values are combined by taking the square root of the sum of the squares. See Application Information section.
Open the catalog to page 10Preliminary Datasheet REV 1.5 RH70110CU Performance Characteristics: Ta Range l, valid at Ta = -40°c to 150°c, unless otherwise specified Characteristic 1 Typical values with +/- are 3 sigma values 2 Percentage of IP , with IP = iPR(max). 3 A single part will not have both the maximum/minimum sensitivity error and maximum/minimum offset voltage, as that would violate the maximum/minimum total output error specification. Also, 3 sigma distribution values are combined by taking the square root of the sum of the squares. See Application Information section.
Open the catalog to page 11Preliminary Datasheet REV 1.5 RH70110CB Performance Characteristics: Ta Range l, valid at Ta = -40°c to 150°c, unless otherwise specified Characteristic 1 Typical values with +/- are 3 sigma values 2 Percentage of IP , with IP = iPR(max). 3 A single part will not have both the maximum/minimum sensitivity error and maximum/minimum offset voltage, as that would violate the maximum/minimum total output error specification. Also, 3 sigma distribution values are combined by taking the square root of the sum of the squares. See Application Information section.
Open the catalog to page 12Preliminary Datasheet REV 1.5 RH70120AU Performance Characteristics: Ta Range l, valid at Ta = -40°c to 150°c, unless otherwise specified 1 Typical values with +/- are 3 sigma values 2 Percentage of IP , with IP = iPR(max). 3 A single part will not have both the maximum/minimum maximum/minimum total output error specification. Also, squares. See Application Information section. sensitivity error and maximum/minimum offset voltage, as that would violate the 3 sigma distribution values are combined by taking the square root of the sum of the
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