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TLC59116: about drift for sink current by parallel LED numbers

Guru 11170 points
Part Number: TLC59116

Hello E2E,

Our customer is evaluating the TLC59116 on pre-production board.
When conducting current for one LED, the LED current is accord with the set value.
When conducting current for multiple LEDs, the LED current decrea up to 10% from the set value.
Does the heat inside the device affect the current sink characteristics of the device?

Regards,
ACGUY