Aceinna adds high-power current sensor

Aceinna has expanded its MCx1101 current sensor family with the addition of a high-current ±65-amp MCx1101 version. Claimed as the industry’s most accurate and highest bandwidth current sensor, the ±65-A device is designed for  wide-bandgap (WBG) applications. The anisotropic magnetoresistive (AMR)-based current sensor, available in 3.3- and 5-volt versions, is suited for a range of next generation power systems and applications.

Click for a larger image. (Source: Aceinna)

The MCx11-1’s fast response and high bandwidth is suited for fast switching silicon carbide and gallium nitride-based power stages and enables power system designers to make use of the higher speeds and smaller components enabled by WBG switches, said Aceinna.

The new current sensor offers high accuracy, 1.5-MHz signal bandwidth with industry benchmark phase shift vs. frequency, a fast output step response, and 4.8-kV isolation. This makes the new device suited for current sensing in fast current control loops and protection for high-performance power supplies, inverters, and motor control applications.

Other features include an output step response time of 0.3 µs and an integrated over-current detection (OCD) flag to help implement the OCD required in modern power systems. The OCD response time is fast at 0.2 µs.

Click for a larger image. (Source: Aceinna)

“Aceinna’s MCx1101 current sensors are fully integrated, bi-directional and provide much higher DC and AC accuracy and dynamic range compared with alternative solutions,” said Teoman Ustun, VP of marketing, Aceinna, in a statement. “For example, the new ±65-A versions have a typical accuracy of ±3%. This new current sensor utilizes an industry standard SOIC-16 package with a low impedance (0.9 milliohm) current path and are UL/IEC/EN60950-1 certified for isolated applications.”

In addition to the ±65-A version, the MCx1101 family includes ±50, ±20, and ±5 amp ranges, and is offered in both fixed gain (MCA1101) and ratiometric gain (MCR1101) versions. The new current sensor is available now for sampling and volume shipments. The part can be ordered from Mouser.