ADM660 doubler specification

Hi

May we know the output drop voltage in AD660(doubler-mode) ?

We consider D-range for sink driver ICs or discrete.

We will use ADM660 for LED anode voltage.

Vin=5V OUT=10V max 100mA

Vf=4.6V(max)

LED Cathode connects to sink driver and etc.

We have  Output Resistance and TPC3 characteristics in ADM660 datasheet.

These are same specification in Both Invertring Mode and  Doubling Mode, aren't them?(Are SPECIFICATIONS and any graph for Both of them?)

Is ADM660 Output Resistance specification at TA = TMIN to TMAX?

Best regards 

Thank you very much

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  • +1
    •  Analog Employees 
    on Dec 2, 2020 2:07 AM

     

    Hello,

    Hopefully this helps.

     

    • May we know the output drop voltage in AD660(doubler-mode) ?”

     

    • I am not sure what the output drop voltage means? Could you please clarify?

     

    • “We have  Output Resistance and TPC3 characteristics in ADM660 datasheet.These are same specification in Both Invertring Mode and  Doubling Mode, aren't them?”

     

    • Yes, they are the same.

     

    • “Is ADM660 Output Resistance specification at TA = TMIN to TMAX?”

     

    • The output resistance specification is for -40C to 85C (Tmin to Tmax), and ranges from 9 ohms to 15 ohms. Refer TPC14.

     

     

  • Thank you for your kind reply.

    I mean "the output drop" is a difference between ideal Vout (2Vin) to actual Vout.

    I think that the actual output depends on external C1,C2 mismatch,  ESR and frequency (from datasheet p.7 p.9 ).

    In Specification, it is C1=C2 and ESR<0.2ohm.

    Best regards 

    Thank you very much.

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