Product category:
Discrete Power Devices
News Release from: Zetex | Subject: BSP75G
Edited by the Electronicstalk Editorial
Team on 26 November 2003
Protected MOSFET takes inrush in its
stride
The BSP75G is the first fully self-protected MOSFET device in the IntelliFET low-side array based platform integrating a configurable component array with a vertical power transistor on the same die.
The BSP75G is the first fully self-protected mosfet device to be released by Zetex from its IntelliFET low-side array based platform integrating a configurable component array with a vertical power transistor on the same die The 60V 550mohm N-channel BSP75G is protected against overtemperature, overcurrent, overvoltage and ESD
This article was originally published on Electronicstalk on 24 Jul 2008 at 8.00am (UK)
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The mosfet offers logic level input control and will auto restart on removal of any fault type.
The SOT223 packaged part suits general purpose switching duties and is rated for automotive applications.
At a preset chip temperature of around 175C, the device will shutdown and a 550mJ active clamp will turn the device off before it goes into avalanche breakdown.
Thanks to its novel overcurrent limit, the device can handle an unusually high continuous current of 1.6A.
Internal bidirectional diodes provide human body ESD protection.
As well as protecting itself, the BSP75G will also actively protect the load.
By limiting the load current, dissipation in the load is greatly reduced, which can prevent destruction of the load during a load dump condition.
Short circuits are also handled.
After a permissible startup current pulse, the device settles to a current that is fixed by the internal overcurrent protection circuit.
The BSP75G is particularly well suited for loads with a high inrush current such as lamps and motors.
It will switch all types of resistive, inductive and capacitive loads and acts as a microcontroller compatible power switch in 12 and 24V circuits.
Replacing electromechanical relays and discrete circuits, this self protected mosfet will reduce the component count and PCB size of many applications.
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