Zetex plc (Chadderton, Oldham) introduced its BSP75G fully self-protected MOSFET device from its IntelliFET™ low-side-array-based platform integrating a configurable component array with a vertical power transistor on the same die. The 60 V, 550 milliOhm, n-channel BSP75G is protected against over-temperature, over-current, over-voltage and ESD. The BSP75G suits general-purpose switching duties and is rated for automotive and motor applications.
At a preset chip temperature of around 175 °C, the device will shut down and a 550 mJ active clamp will turn the device off before it goes into avalanche breakdown. The device can handle a high continuous current of 1.6 A. As well as protecting itself, the BSP75G will also actively protect the load. By limiting the load current, dissipation in the load is reduced. Short circuits are also handled. After a permissible startup current pulse, the device settles to a current that is fixed by the internal over-current protection circuit. It will switch all types of resistive, inductive and capacitive loads and acts as a microcontroller-compatible power switch in 12 V and 24 V circuits.
Pricing starts at $0.41 each for 10,000-piece quantities. Delivery is four to six weeks in production volumes.
