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TL1963A-Q1: Thermal Overload Protection

Part Number: TL1963A-Q1

Hi Team,

A customer is using multiple TL1963-Q1 LDO regulators in their applications and would like to know more details about the Thermal Overload Protection of this device. Here are the information that he would like to request.

1. The initial variation or the temperature threshold (Min. and Max., knowing that it should be centered around 125°C)
2. The end of life variation
3. A distribution graph of the threshold measured on multiple devices

Regards,

Danilo

  • Hi Danilo,

    The thermal shutdown is a mechanism to protect the LDO. Typically it kicks in around 150-160°C. So to answer your questions:

    1. The initial variation or the temperature threshold (Min. and Max., knowing that it should be centered around 125°C) - The 125°C is the recommended maximum operating temperature of the die. This is not where thermal shutdown occurs. 
    2. The end of life variation - We do not typically characterize the thermal shutdown behavior. This is not designed as a precision threshold it is a tier of protection to save the LDO if it is operating outside its recommended range. 
    3. A distribution graph of the threshold measured on multiple devices - This is an older device and it may take time to dig this up. Given the above, is this still needed?

     

    I hope this helps to answer your questions.

  • Hi John,

    Thank you for these information.

    Regards,

    Danilo