ON Semiconductor has introduced the CAT2300 current mirror with switch controller, that it says can be combined with the company’s NTMFS4833NS or NTMFS4854NS SENSEFET power mosfet devices as a current monitor.

Control and matching of the SENSEFET’s SENSE output with the KELVIN voltage leads by the CAT2300 ensures accurate current monitoring over the SENSEFET’s entire operating range.

The current mirror offers a single chip alternative to a discrete circuit approach and is able to provide sensorless precision current measurement of 0.9V to 5V power supply rails.

The device performs current mirroring to 70mA – which equates to 25A of measured current.

A soft-start function is also included. Current consumption is less than 1µA in shutdown mode supporting long life in battery powered applications.

Housed in a space saving, low profile 2 mm x 3 mm TDFN-8 package, the CAT2300 is suitable for use over the full -40 ºC to +85 ºC operating temperature range.

For more information, see http://www.onsemi.com