LEDx驱动电流规格不同

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Fri, 2017-12-22 04:57

Jun-ichi Tobe

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Last seen:6 months 3 weeks ago

加入:2016-04-01 10:39

LEDx驱动电流规格不同

Hello support!
Let me check about the specification of IO_MAX_LEDx.
We are considering turning on/off or blinking the LED1,2,3..
Looking at the data sheet, specification is TYP19 mA (MAX 24 mA, Min 14 mA).
(Datasheet Page 447, Table 823: LED Driver: From DC characteristics)

I think that the difference is as large as 10 mA (= 24 mA - 14 mA) at the maximum.
And I think that the difference in the brightness of the LED will increase for each product, if the difference value is large.
How do you think about this difference?
Or is it a value of TYP19 mA as the actual value?

Best regards,

Jun-ichi

Device:

DA1468x

Fri, 2017-12-22 15:27

MT_dialog

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Last seen:3 months 2 days ago

加入:2015-06-08 11:34

Hi Jun-ichi,

The values that you get on the datasheet are minimum and maximum values in order for the circuit to operate and not be damaged, the brightness of your LED depends on the LED that you are going to use and the resistor that you are going to apply externally in order to limit the current flow, you will just have to make sure that the current will not surpass the 24mA because this will damage the LED driver.

Thanks MT_dialog