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Automotive-Grade Linear Current Sensor IC with 2.1 kVRMS Isolation

ACS714

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The ACS714 offers accurate and isolated current sensing for automotive applications, with 2.1 kVRMS isolation, a low-resistance current conductor, and AEC-Q100 qualification for robust performance.

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  • Low-noise analog signal path
  • Device bandwidth is set via the FILTER pin
  • 5 µs output rise time in response to step input current
  • 80 kHz bandwidth
  • Total output error 1.5% typical, at TA = 25°C
  • Small footprint, low-profile SOIC8 package
  • 1.2 mΩ internal conductor resistance
  • 2.1 kVRMS minimum isolation voltage from pins 1-4 to pins 5-8
  • 5.0 V, single supply operation
  • 66 to 185 mV/A output sensitivity
  • Output voltage proportional to AC or DC currents
  • Factory-trimmed for accuracy
  • Extremely stable output offset voltage
  • Nearly zero magnetic hysteresis
  • Ratiometric output from supply voltage
  • Operating temperature range, –40°C to 150°C

The ACS714 is provided in a small, surface mount SOIC8 package (suffix LC). The leadframe is plated with 100% matte tin, which is compatible with standard lead (Pb) free printed circuit board assembly processes. Internally, the device is Pb-free, except for flip-chip high-temperature Pb-based solder balls, currently exempt from RoHS. 

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Part Number Specifications and Availability

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All Types Application Note Certificate Technical Article
Documents Found: 32
Document Type Document Name
Application Note
Managing External Magnetic Field Interference When Using ACS71x Current Sensor ICs
Application Note
Hall Effect Current Sensing in Electric and Hybrid Vehicles
Application Note
Package Thermal Resistance for Allegro Current Sensors with Integrated Conductors
Certificate
Certificate CB US 42876 UL LC Package
Certificate
Certificate of Compliance 20130417 E316429
Technical Article
Hall Effect Current Sensing in Hybrid Electric Vehicle (HEV) Applications 
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Documents Found: 32
Document Type Document Name
Gerber File
ASEK7xx Gerber File
Simulation Tool
Current Sensor Error and Resolution
Webpage
Current Sensor Evaluation Boards Page