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LM5116: About the resistance value used in EN and UVLO

Kaji@PAN
Mastermind 7785 points
Part Number: LM5116

Hi,

I previously asked in the following thread about the resistance values used for EN and UVLO in the LM5116 circuit.
In the circuit above, I will eventually use the following resistor values:
Can you give me your opinion if I am OK with this resistance value?

UVLO pull-up: 10kΩ
UVLO pulldown: 1.8kΩ
EN pull-up: 10kΩ
EN pull-down: 10kΩ

Best regards,

e2e.ti.com/.../886026

  • 0
    TI__Mastermind 27470 points

    HI

    Pls notice that: the maximum EN transition time for proper operation is one switching period. For example, the enable rise time must be less than 4 μs for 250-kHz operation

    and base on your UVLO resistor value, LM5116 will shutdown when 12V drop down to around 8V.

    The resistor value is fine.  

    Thanks