Allegro MicroSystems releases a fully integrated, monolithic power monitoring IC with reinforced isolation

Friday, September 28, 2018

 

Allegro MicroSystems has released a fully integrated, small form factor, power monitoring IC with reinforced voltage isolation. Allegro’s ACS724 and ACS711 Current Sensor ICs are commonly used in internet connected power outlets and other IOT devices. The ACS71020 improves upon these popular ICs by including power sensing functions and by eliminating power and isolation components that would otherwise increase the cost and the size of customer systems.

 

The ACS71020 IC builds upon Allegro’s innovative Hall-effect current sensor IC technology by adding line voltage sensing (to voltage levels > 500 VRMS) and a dedicated metrology engine that digitally calculates detected power levels. This enables the first power monitor IC that can be powered from the same voltage supply as the system microprocessor, without needing digital isolators or multiple power supplies.

 

Allegro’s new power monitor IC simplifies common power measurements by offering digital computation of parameters including active, reactive and apparent power. These power values can be read out through I²C or SPI. The IC also includes dedicated pins for voltage zero crossing (suitable for light-dimming applications) and fast overcurrent fault detection (for sensing short-circuits). The ACS71020 eliminates the need for opto-couplers, dual output isolated power supplies and a current sense-resistor in single phase power monitoring applications.

 

The device is also housed in a single SOIC-16 wide body package that provides a reinforced isolation rating up to 517 Vrms. This monolithic IC provides makes it simple to add power monitoring to any AC or DC powered device.

 

The ACS71020 current sensor IC is programmed at Allegro for optimised accuracy measurement to either +/-15, +/-30, or +/-90 A.

 

For more information please contact:

Conrad Coetzee
Engineer:  Field Application PLM
Altron Arrow

+27 (0) 83 746 2616

CCoetzee@arrow.altech.co.za
 

 

Contact Us

Units J16 Centurion Business Park

Bosmansdam Road

Milnerton, 7441

 

Email Address:

Tel: (021) 555-1884 | Fax: (021) 555-1763

Suite AF. 2/3 Ensign Square 4 Sookhai Place Derby Downs Office Park

University Road

Westville

Durban, 3630

 

Email Adress:

Tel: (031) 279-1660 | Fax: (031) 267-3798

53-57 Yaldwyn Road

Hughes Extension

Jet Park 1459

 

Email Address:

Tel: (011) 923-9600 | Fax: (011) 923-9884

Customer Feedback

We are waiting to hear from you.


If you have any feedback please don't 
hesitate to email info@arrow.altech.co.za


Or give us a call on: (011) 923-9600 
Telefax: (011) 923-9884


Quality Management

Arrow Electronics