The Allegro ACS711 provides economical and precise solutions for AC or DC current sensing in <100 V audio, communications systems, and white goods. The device package allows for easy implementation by the customer. Typical applications include circuit protection, current monitoring, and motor and inverter control.
The device consists of a linear Hall sensor circuit with a copper conduction path located near the surface of the die. Applied current flowing through this copper conduction path generates a magnetic field which is sensed by the integrated Hall IC and converted into a proportional voltage. Device accuracy is optimized through the close proximity of the magnetic signal to the Hall transducer.
The output of the device has a positive slope proportional to the current flow from IP+ to IP– (pins 1 and 2, to pins 3 and 4). The internal resistance of this conductive path is 0.6 mΩ for the EX package, and 1.2 mΩ for the LC package, providing a non-intrusive measurement interface that saves power in applications that require energy efficiency.
The ACS711 is optimized for low-side current sensing applications, although the terminals of the conductive path are electrically isolated from the sensor IC leads, providing sufficient internal creepage and clearance dimensions for a low AC or DC working voltage applications. The thickness of the copper conductor allows survival of the device at up to 5× overcurrent conditions.
The ACS711 is provided in small, surface mount packages: SOIC8 and QFN12. 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. The device is fully calibrated prior to shipment from the factory. The new package offering is an automotive grade wettable flank QFN that allows for solder inspection and provides for easy implementation by the customer. Typical applications include circuit protection, current monitoring, and motor and inverter control.
Astrorep Inc. (Allegro and Sanken Semiconductors,
Sanken Power Supplies)
700 Veterans Memorial Hwy
Suite 310
Hauppauge, NY 11788
Phone: (631)422-2500
Fax: (631)422-2504
Web: www.astrorepinc.com
Email: donna.tweedy@astrorepinc.com
If this is not your local representative, find your local sales rep here.
Allegro MicroSystems, LLC provides Gerber files for reference only. Any material, information, or instructions are provided AS IS without warranty of any kind. It is the responsibility of the User(s) to optimize any Printed Circuit Board (PCB) layout, as well as the selection of any components, for the specific application of the User(s).
Part Number | Package Type | Temperature | RoHS Compliant |
Part Composition / RoHS Data |
Comments | Samples | Check Distributor Stock |
---|---|---|---|---|---|---|---|
ACS711EEXLT-8AB-T | n/a | -20°C to 85°C | Yes | View Data | Not for new design | Contact your local sales rep |
Check Stock |
ACS711KEXLT-30AU-T | n/a | -20°C to 85°C | Yes | View Data | Contact your local sales rep |
Check Stock | |
ACS711KLCLU-25AU-T | n/a | -20°C to 85°C | Yes | View Data | Contact your local sales rep |
Check Stock | |
ACS711KLCTR-25AU-T | n/a | -20°C to 85°C | Yes | View Data | Contact your local sales rep |
Check Stock | |
ACS711KLCTR-30AB-T | n/a | -20°C to 85°C | Yes | View Data | Contact your local sales rep |
Check Stock | |
ACS711KLCTR-48AU-T | n/a | -20°C to 85°C | Yes | View Data | Contact your local sales rep |
Check Stock | |
ASEK711KEX-15AB-J | n/a | -20°C to 85°C | -- | View Data | Contact your local sales rep |
Check Stock | |
ASEK711KEX-15AB-T | DEMO BOARD | -20°C to 85°C | No | -- | Contact your local sales rep |
Check Stock | |
ASEK711KEX-31AB-J | n/a | -20°C to 85°C | -- | View Data | Contact your local sales rep |
Check Stock | |
ASEK711KEX-31AB-T | DEMO BOARD | -20°C to 85°C | No | -- | Contact your local sales rep |
Check Stock | |
ACS711EEXLT-15AB-T | 12-lead QFN | -40°C to 85°C | Yes | View Data | Not for new design | Contact your local sales rep |
Check Stock |
ACS711EEXLT-31AB-T | 12-lead QFN | -40°C to 85°C | Yes | View Data | Not for new design | Contact your local sales rep |
Check Stock |
ACS711ELCTR-12AB-T | 8-lead SOIC | -40°C to 85°C | Yes | View Data | Contact your local sales rep |
Check Stock | |
ACS711ELCTR-25AB-T | 8-lead SOIC | -40°C to 85°C | Yes | View Data | Contact your local sales rep |
Check Stock | |
ACS711KEXLT-15AB-T | 12-lead QFN | -40°C to 125°C | Yes | View Data | Contact your local sales rep |
Check Stock | |
ACS711KEXLT-31AB-T | 12-lead QFN | -40°C to 125°C | Yes | View Data | Contact your local sales rep |
Check Stock | |
ACS711KLCTR-12AB-T | 8-lead SOIC | -40°C to 125°C | Yes | View Data | Contact your local sales rep |
Check Stock | |
ACS711KLCTR-25AB-T | 8-lead SOIC | -40°C to 125°C | Yes | View Data | Contact your local sales rep |
Check Stock | |
ASEK711KLC-12AB-T | DEMO BOARD | -40°C to 125°C | No | -- | Contact your local sales rep |
Check Stock | |
ASEK711KLC-25AB-T | DEMO BOARD | -40°C to 125°C | No | -- | Contact your local sales rep |
Check Stock |