Allegro MicroSystems Allegro MicroSystems ACS709


Current Sensor

Allegro MicroSystems

High bandwidth, fast fault response current sensor IC in a thermally enhanced package.

Product Description

The Allegro® ACS709 current sensor IC provides economical and precise means for current sensing applications in industrial, automotive, commercial, and communications systems. The device is offered in a small footprint surface mount package that allows easy implementation in customer applications.

The ACS709 consists of a precision linear Hall sensor integrated circuit with a copper conduction path located near the surface of the silicon die. Applied current flows through the copper conduction path, and the analog output voltage from the Hall sensor IC linearly tracks the magnetic field generated by the applied current. The accuracy of the ACS709 is maximized with this patented packaging configuration because the Hall element is situated in extremely close proximity to the current to be measured.

  • Current - Sensing:20A ~ 37.5A
  • Current - Supply (Max):14.5mA
  • For Measuring:AC/DC
  • Frequency:DC ~ 120kHz
  • Linearity:±0.25%
  • Mounting Type:Surface Mount
  • Number of Channels:1
  • Operating Temperature:-40°C ~ 150°C
  • Output:Ratiometric, Voltage
  • Package / Case:24-SSOP (0.154", 3.90mm Width)
  • Polarization:Bidirectional
  • Response Time:4µs
  • Sensitivity:28mV/A ~ 56mV/A
  • Sensor Type:Hall Effect, Open Loop
  • Supplier Device Package:24-QSOP
  • Voltage - Supply:3V ~ 5.5V
ACS709LLFTR-35BB-TACS709LLFTR-35BB-TSENSOR CURRENT HALL 37.5A AC/DC AC/DCHall Effect, Open Loop37.5A124-SSOP (0.154", 3.90mm Width)RoHS
ACS709LLFTR-20BB-TACS709LLFTR-20BB-TSENSOR CURRENT HALL 20A AC/DC AC/DCHall Effect, Open Loop20A124-SSOP (0.154", 3.90mm Width)RoHS
Associated Product
Allegro MicroSystems ASEK709LLF-20BB-T-DK
Category: Semiconductors, Development Tools-Development Boards, Kits, Programmers-Evaluation Boards - Sensors