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OPT3004: ALS Count Issue during IR LED turn ON

Part Number: OPT3004

Hello TI Team ,

We are using OPT3004 ALS in multiple project with 850 and 940 ir LED wavelength .

Case 1 : In Open Setup with IR850 

1. Before IR LED Turn ON --- ALS Count is 24 

2. After IR LED Turn ON-----ALS Count is 30 

So this change in ALS count we corrected by putting gasket so with mechanical setup difference is very less .

Case 2 : In Open Setup with IR940 

1. Before IR LED Turn ON --- ALS Count is 24 

2. After IR LED Turn ON-----ALS Count is 0

So this change in ALS count we corrected by putting gasket so with mechanical setup difference is very less .

But we want to know why the ALS count is going down incase of 940 IR with IR leakage is high .

root@stork-08FBEACFD5D4(A):/sys/devices/platform/e4000000.n_apb/e4009000.i2c/i2c-1/1-0044/iio:device3# cat in_illuminance_input
27.320000
root@stork-08FBEACFD5D4(A):/sys/devices/platform/e4000000.n_apb/e4009000.i2c/i2c-1/1-0044/iio:device3#  echo 255 > /sys/class/leds/led_ir/brigh  ----IR ON
tness
root@stork-08FBEACFD5D4(A):/sys/devices/platform/e4000000.n_apb/e4009000.i2c/i2c-1/1-0044/iio:device3# cat in_illuminance_input
0.000000
root@stork-08FBEACFD5D4(A):/sys/devices/platform/e4000000.n_apb/e4009000.i2c/i2c-1/1-0044/iio:device3# echo 128 > /sys/class/leds/led_ir/bright  ----IR ON
ness
root@stork-08FBEACFD5D4(A):/sys/devices/platform/e4000000.n_apb/e4009000.i2c/i2c-1/1-0044/iio:device3# cat in_illuminance_input
0.000000
root@stork-08FBEACFD5D4(A):/sys/devices/platform/e4000000.n_apb/e4009000.i2c/i2c-1/1-0044/iio:device3# echo 108 > /sys/class/leds/led_ir/bright  ----IR ON

  

Thanks ,

Shubham