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1 MHz Bandwidth, Galvanically Isolated Current Sensor IC

ACS730

ACS730 Packaging

The ACS730 provides high-bandwidth (1MHz), high-accuracy current sensing for AC or DC currents, featuring galvanic isolation and a small footprint for high-frequency applications.

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Top Features

Typical Applications

Packaging

  • 1MHz signal path bandwidth can replace high frequency current transformers in DC/DC converters and power supplies
  • Lightning fast 210nS typical response time fast enough to protect IGBTs during shorting events
  • AEC-Q100 qualified for automotive applications up to 150C operating temperature
  • 2400VRMS isolation rating can be used in most xEV vehicle applications with voltages as high as 420Vpk, RMS, or DC
  • Bidirectional and unidirectional current sensing output options can be used in full bridge or high and low side applications
  • Small footprint SOIC8 package can reduce PCB area over larger high frequency transformers while at the same time improving overall system quality levels
  • Fully integrated current sensing solution reduces overall BOM and can reduce overall system cost
  • 1.2mOhm integrated conductor package can be used for high power density applications up to 50Amp continuous current
  • Integrated regulator and non-ratiometric output provide high PSRR in noisy supply environments
  • Integrated shield virtually eliminates capacitive coupling from current conductor to the die due to high dv/dt voltage transients
  • Output proportional to AC or DC current
  • Operation on a single 5V supply

The ACS730 is provided in a small, low-profile surface-mount SOIC8 package. 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

Documentation and Resources

Documentation

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Documents Found: 32
Document Type Document Name
Application Note
Current Sensing in Motor Drives
Application Note
Package Thermal Resistance for Allegro Current Sensors with Integrated Conductors
Application Note
Glossary of Isolation-Related Terms for Integrated Current Sensors
Brochure
Enhancing Robotic Design
Certificate
Certificate CB US 42876 UL LC Package
Certificate
CB Certificate US-32848-UL
Certificate
Certificate of Compliance 20160520 E316429
Certificate
Certificate of Compliance 20181207-E316429
FAQ
Current Sensors FAQ
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Documents Found: 32
Document Type Document Name
Gerber File
ASEK730 Gerber File
Simulation Tool
Current Sensor Error and Resolution
SPICE Model
ACS LTspice Library
Webpage
Current Sensor Evaluation Boards Page
Webpage
Software Portal