Current Sensor ICs

Allegro MicroSystems, LLC has developed a line of fully integrated Hall-effect current sensor ICs and Hall-effect linear ICs that provide highly accurate, low noise output voltage signals that are proportional to an applied AC or DC current. These current sensor ICs are in high volume production in many applications, including automotive HEV inverters and electronic power steering (EPS) systems, and in industrial and consumer inverters, compressors, and motors. Allegro current sensor ICs are also used in many power monitoring applications, such as computer blade servers and server power supplies.

Allegro’s proprietary fully integrated Hall-effect current sensor ICs employ advanced IC and packaging techniques for sensing current from 5 A to 200 A. For sensing beyond 200 A an Allegro current sensor linear IC can be used. Allegro current sensor ICs allow design engineers to use Hall-effect-based current sensor ICs in new applications where increased energy efficiency or new operating features are required.

Wherever current sensing is needed, an Allegro sensor IC can provide a solution.

Buy NowACS711

Hall-Effect Current IC with Overcurrent Fault Output for Low Voltage Isolation Applications

Allegro ACS711
Part No. Package Type Temperature  
ACS711EEXLT-31AB-T 12-lead QFN -40 ° C to 85 ° C Datasheet
ACS711EEXLT-15AB-T 12-lead QFN -40 ° C to 85 ° C Datasheet
ACS711KLCTR-25AB-T 8-lead SOIC -40 ° C to 85 ° C Datasheet
ACS711KLCTR-12AB-T 8-lead SOIC -40 ° C to 85 ° C Datasheet
ACS711KEXLT-15AB-T 12-lead QFN -40 ° C to 125 ° C Datasheet
ACS711EEXLT-31AB-T 12-lead QFN -40 ° C to 125 ° C Datasheet
ACS711ELCTR-12AB-T 8-lead SOIC -40 ° C to 125 ° C Datasheet
ACS711ELCTR-25AB-T 8-lead SOIC -40 ° C to 125 ° C Datasheet

Buy NowACS712

Low-Noise 2100 VRMS Hall-Effect Current Sensor IC

Allegro ACS712
Part No. Package Type Temperature  
ACS712ELCTR-05B-T 8-lead SOIC -40 ° C to 85 ° C Datasheet
ACS712ELCTR-20A-T 8-lead SOIC -40 ° C to 85 ° C Datasheet
ACS712ELCTR-30A-T 8-lead SOIC -40 ° C to 85 ° C Datasheet

Buy NowACS710

120 kHz Bandwidth High Voltage Isolation Current Sensor IC

Allegro ACS710
Part No. Package Type Temperature  
ACS710KLATR-12CB-T 16-lead SOIC -40 ° C to 125 ° C Datasheet
ACS710KLATR-25CB-T 16-lead SOIC -40 ° C to 125 ° C Datasheet
ACS710KLATR-6BB-T 16-lead SOIC -40 ° C to 125 ° C Datasheet

Buy NowACS758

High Isolation 50 A to 200 A Hall-Effect Based Linear Current Sensor IC

Allegro ACS758
Part No. Package Type Temperature  
ACS758ECB-200B-PFF-T 3-lead CB -40 ° C to 85 ° C Datasheet
ACS758ECB-200U-PFF-T 3-lead CB -40 ° C to 85 ° C Datasheet
ACS758ECB-200B-PSS-T 3-lead CB -40 ° C to 85 ° C Datasheet
ACS758KCB-150B-PSS-T 3-lead CB -40 ° C to 125 ° C Datasheet
ACS758KCB-150B-PFF-T 3-lead CB -40 ° C to 125 ° C Datasheet
ACS758LCB-050U-PFF-T 3-lead CB -40 ° C to 150 ° C Datasheet
ACS758LCB-100U-PFF-T 3-lead CB -40 ° C to 150 ° C Datasheet
ACS758LCB-050B-PFF-T 3-lead CB -40 ° C to 150 ° C Datasheet
ACS758LCB-100B-PFF-T 3-lead CB -40 ° C to 150 ° C Datasheet

Features:

  • Low insertion loss; power dissipation much less than shunt solutions
  • Able to monitor both AC and DC currents
  • 5 V or 3.3 V, single supply operation
  • Voltage isolation rating certified by UL and TUV America
  • Smaller form factor than shunt and current transformer solutions
  • RoHS compliant
 

Applications:

  • Motor and pump control in white goods applications
  • Short circuit and overpower detection in audio applications
  • Power supply control
  • Industrial motor control
  • Hybrid electric vehicles
  • Renewable energy systems
  • Automotive steering and braking systems
  • Rack and subsystem power distribution
  • Instrumentation
  • Power meters
  • Inverters

Technical Articles:

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