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Power Management

Q&A What precision of output current of the LT3517 in temperature range 10 to 50 Celsius degrees?

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What precision of output current of the LT3517 in temperature range 10 to 50 Celsius degrees?

Mrivlin on Dec 22, 2019

Per data sheet (p.9) of the LT3517, when the CTRL pin voltage is less than 1V, the LED current is: ILED =VCTRL/(10*RSENSE).

Question: What precision of this equation in temperature range of +10 to +50 Celsius degrees?

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Mikee_Lacson_00
Jan 22, 2020 +1 verified
Hi

Attached is the data gathered on Vctrl vs VISP – VISN Threshold

This was gathered using a DC1279A eval board

Regards

0 Fil

on Jan 9, 2020 7:32 AM
Hi Mrivlin,

We don't have readily available data so we need to test in bench. Can you share Estimate Annual Usage of the product to justify the activity?
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0 Mrivlin on Jan 9, 2020 1:33 PM in reply to Fil

Estimated annual usage for the LT3517 is 400k
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+1 Mikee_Lacson_00

on Jan 22, 2020 8:44 AM
Hi

Attached is the data gathered on Vctrl vs VISP – VISN Threshold

This was gathered using a DC1279A eval board

Regards
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0 Mrivlin on Jan 28, 2020 2:27 PM in reply to Mikee_Lacson_00

Thank you very much Mikee_Lacson_00 !
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