ASEK716KLA-25CB-T

• Product introduction

The Allegro® ACS716 current sensor provides an affordable, accurate solution for current sensing applications in industrial, commercial, and communications systems. The device comes with a small size wall-mounted package for easy user use.

The ACS716 device has a precise oneLinear Hall sensorsAn integrated circuit with a copper current path close to the surface of the wafer. The impressed current flows through the copper current path, while the analog output voltage of the Hall sensor IC linearly tracks the magnetic field generated by the applied current. The accuracy of the ACS716 is maximized thanks to this patented packaging device, as the position of the Hall element is very close to the current to be measured.

Allegro's unique integrated screen technology provides high immunity to current conductor dV/dt signals and stray electric fields, ensuring low output voltage ripple and low bias drift in high-side, high-voltage applications.

The overcurrent voltage input (VOC pin) allows the user to set an overcurrent fault standard for this device. When the current flowing through the copper current path (between IP+ and IP– pins) exceeds this standard, the open drain overcurrent fault pin transitions to a logic low state. The ACS716's internal linear Hall sensor IC's write-only program enables exceptionally accurate analog and digital output signals.

A typical copper in-path resistor for current sensing is 1 mΩ with minimal power loss. Also, the current path is insulated from the input and output of the low-voltage sensor. This allows the ACS716 sensor family to be used in applications that require electrical isolation without the use of opto-insulators or other expensive insulation technologies.

The ACS716 is available in a small surface mount SOIC16 package. The leadframe is 100% matte tin plating for compatibility with standard lead-free printed circuit board assembly processes. The device is internally lead-free, except for the current RoHS-exempt high-temperature leaded solder balls used in the flip method. The device is fully calibrated before shipping from the factory.

Applications include:

• Motor control and protection
• Load management and overcurrent detection
• Power conversion and battery monitoring /UPS system
• • Patented amplifier and filter design processes enable high bandwidth, industry-leading noise performance
  • Small size for applications with space constraints
  • The 1 mΩ primary conductor resistance results in low power loss
  • The high insulation voltage is suitable for live wire applications in the grid
  • User-adjustable overcurrent fault criteria
  • Overcurrent fault signals are usually reflected
  • Due to the high transient voltage of dV/dt, the integrated screen virtually completely eliminates capacitive coupling in the current conductor
  • Filter pin capacitors improve resolution in low bandwidth applications
  • 3 to 3.6 V, single supply operation
  • Factory-set sensitivity and quiescent output voltage
  • Stable chopping results in a very stable quiescent output voltage
  • Proportional output of the supply voltage
  //www.chip100.com/