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CSD88539ND: About EAR

mayumi.T
Expert 1015 points
Part Number: CSD88539ND
Other Parts Discussed in Thread: CSD

Hello,

Could you tell us about CSD 88539?
What is the avalanche (EAR) value under the following conditions?
※ This question is about EAR, not EAS.

VDD = 30 V,
Vgs = 20 V -> 0 V,
ID = 10 A,
L = 100 uH,
RG = 25 ohms

Tch ≦ 150 ° C., test time 1000 h
On = 1 us, duty cycle ≦ 1%

Thank you.

  • 0
    TI__Expert 7445 points
    Mayumi,

    Thanks for posting.
    TI does not rate any of our MOSFETs for repetitive avalanche rating, we rate and 100% test on a single pulse rating.
    I do not recommend ever putting any MOSFET device from any manufacturer into repetitive avalanche as part of normal design process. If you place devices in repetitive avalanche you will increase your DPPM failure rates almost certainly.
    As such I recommend that designs are always done so that voltage spikes are below the maximum voltage rating of the MOSFET, avalanche rating of the FET can then be used to handle voltage spikes under infrequent fault type conditions.
  • 0 in reply to Chris Bull
    Expert 1015 points
    Dear Chris ,

    Thank you for your reply.
    I want to tell my customers immediately.


    Could you tell us more?

    · Do you have a plan to develop a dual type with higher pressure rating?
    (It is even better if it corresponds to 5 V logic drive.)
    · Are there any plans to develop higher voltage products with a single channel compatible with 5 V logic?


    My customers are using 100Kpcs / month for other 60V withstand voltage products (other companies present avalanche (EAR)).
    I would like to present customers with EAR with CSD 88539 or to introduce FET with higher breakdown voltage.
    If there is new product information, would you please teach me?

    Best regards,
    Mayumi
  • 0 in reply to mayumi.T
    TI__Expert 7445 points

    Mayumi,

    This is confidential roadmap information you are asking and not something to be posted on a public forum. I will send you a friend request so we can continue the discussion in private.