Allegro ACS724 & ACS725 – Differential current sensor

Allegro ACS724 & ACS725 – Differential current sensor

Differential current sensor – ACS724/725 SOIC8 sensor, galvanically isolated with common-mode field rejection. [via]

The ACE-Q100 qualified differential Current Sensor ACS724 (5V)/ACS725 (3.3V) is a Current Sensor IC in SOIC8-package (automotive qualified) which is designed for application where small footprint, high sensing accuracy and independence of magnetic field noise is required. With its industry leading noise performance, a bandwidth of 120kHz and a primary conductor resistance of 1.2 mOhm it suits perfectly into Automotive applications due to its accurate sensing output and low power consumption.

The sensor is certified from -40 to 150°C operating temperature and can measure a current up to +/- 50 Amps. The differential sensed current provides common-mode field rejection. That improves accuracy in magnetically noisy environments significantly.

Isolation voltage of 2400VRMS allows conducting of up to 420Vpk or DC on primary side. ACS724/25 in different packages are in development and are available shortly. These different packages allow isolation voltages up to 4800V.

Applications

  • Braking, including brake by wire and parking
  • Low power steering applications
  • Fluid and fuel pump applications
  • DCDC and ACDC Converters requiring operation on high side
  • Seat warmers on the main battery
  • Protection of brush and brushless-DC motors for chassis and in cabin application
  • Protection of loudspeakers for automotive enter- and infotainment
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Mike is the founder and editor of Electronics-Lab.com, an electronics engineering community/news and project sharing platform. He studied Electronics and Physics and enjoys everything that has moving electrons and fun. His interests lying on solar cells, microcontrollers and switchmode power supplies. Feel free to reach him for feedback, random tips or just to say hello :-)

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