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LM4951A: Cchrg Pin

Jacob Olstad
Intellectual 1270 points
Part Number: LM4951A

Hi,

Just a quick question on the function of the Cchrg pin.  It looks like this is used to quickly charge the input cap.  Could this pin be left floating?  What affect would this have on operation?

Regards,

Jake

  • 0
    TI__Guru** 102355 points
    Hi Jake,

    Unfortunately I don't have an evaluation board for testing. Although I think LM4851A should be able to operate with Cchg pin floating, the only effect could be an increase of pop/click noise.

    Best regards,
    -Ivan Salazar
    Applications Engineer - Low Power Audio & Actuators