P-Channel 4 terminal Mosfet with Body

Hello Sir/Madam

I am looking for four terminal P-MOSFET with body terminal. In my application i need to adaptively bias the body based on S/D , whichever is higher. Could you please point me to high voltage four terminal P-MOSFETS.

Voltage ratings specification ( if not available for this specification, any 4 TERMINAL power MOSFET with lower ratings is also fine):

-Used as load side switch in Boost converter.

- Max source voltage 30V

- Max drain voltage 30-40V

-Max drain current 3-4A

Thanks

Sujan

6 Replies

  • Sujan, 

    Our P-Channel FETs are only capable of blocking up to -20Vds. What is the maximum drain to source bias? 

    Here is our entire P-Channel selection guide for reference. 

    http://www.ti.com/lsds/ti/power-management/p-channel-mosfet-tranPostsistor-products.page?paramCriteria=no

    Brett Barr

    Product Marketing Engineer, Mid-Voltage FET

  • In reply to Brett Barr1:

    Hello Brett

     Thank you for the quick response. The P-Mosfet is intended to be used at the load side of  multiple outputs boost converter. (assume 2 outputs here)

    Each output of the Boost converter has a range 6V-16.5V.  Assuming i Connect  the source to output and drain to switch node. The body of this PMOS should be connected to maximum of the two output voltages. Hence i need a p-mosfet with body terminal which i can bias independently.

    I browsed TI parts and wasnot able to locate 4 terminal P-Mosfet. All of them have body connected to source internally.  Could you kindly point me to a P-Mosfet  having body terminal pin.

    P-Mosfet specifications : Vgs of 16V, Vds of 16V, Ids of 1-2A

    Thanks

    Sujan

  • In reply to Sujan Manohar:

    Sujan, 

    Unfortunately TI does not offer any four terminal NexFET devices with external body connect. 

    Let me know if there is anything else FET related I can assist you with. 

    Brett Barr

    Product Marketing Engineer, Mid-Voltage FET

  • In reply to Brett Barr1:

    Hello Brett

     Thank you so much for double checking on my behalf. In case you come across any other power P-MOSFET, kindly let me know.

    Thanks

    Sujan

     

  • In reply to Sujan Manohar:

    Sujan,

    Did you find a 4-terminal P-MOSFET? I also need one

    Thx

  • In reply to Klinkenbecker:

    It looks as if there are very few 4 terminal MOSFETs (bulk connection, substrate connection) in production.  This is unfortunate, as there are some useful circuits that need them.  The available parts are hard to find.  Most of the parts I have found recently are P channel.  Anyone seeing more of them than I list here please add to the list.

    SST211, SST213, SST215, MIC94050, MIC94051, MIC94030, MIC94031

    A recently discontinued part: NXP BSS83.  Other manufacturers use the BSS83 number but it is not the same part and does not have a separate substrate connection.