Other Parts Discussed in Thread: LM3549
Hi Team,
We have 3 questions for LM3435 datasheet as below.
1. Do we have efficiency comparison for 500kHz and 1MHz switching frequency?
2. For High Current Regulator, could we use larger than 49.5k ohm for RIREFX to get lower ILEDX according to datasheet? Because the customer's current application is about 0.3A~0.4A.
Now, customer use 61.9k ohm RIREFx but they sometimes found that the fault pin was triggered when low current condition.
3. If we use 49.5k ohm for RIREF, the LED current setting is 0.5A. Does it mean IMIN = 0.5A/1024 = 0.48mA? Does it can meet +/-3% accuracy?
Best regards,
Hardy