Other Parts Discussed in Thread: LM20
Hi,
I'm having a hard time figuring out which calibration values to put in the EEPROM of the LP5520.
I'm planning to use LP5520 part for driving rgb leds and control the color via I2C, so my plan is to run it in Automatic mode. I don't actually
have a need for a precise calibration, i just need to fill the EEPROM with values so I can set a fixed current and control 0-100% PWM
with the rgb correction registers and dim down if i reach a certain temperature threshold. The specific EEPROM registers I have no
idea how to set is the LM20 coefficients K and B, the self heating factor and the Coefficient PWM values.
I found a note in the old datasheet from National Semiconductor mentioning that the calibration procedure in Application Note AN1459 and AN1462.
If anyone could supply these documents, I think that would also be of great help.
Best regards,
Kristian
