LM3463: Minimum Sink Current

Maximilian Karl

Prodigy 20 points

Part Number: LM3463

Hello,

it it is possible to use LM3463 with Vin: 55V and LED in Serie to sink from 1......50mA. Does it works?

over 4 years ago

0 Irwin Nederbragt over 4 years ago

TI__Mastermind 28655 points

Hello,

This is low current but it seems it should work. The accuracy at lower current may be offset by the sensing pins on the LM3463. What are you trying to design? Are you planning on using the dynamic headroom control? What is providing the voltage to the IC and LED strings? This part was intended for multiple strings to share current while maintaining a minimum headroom for efficiency improvement.

Best Regards,

0 Stephan Mauerer1 over 4 years ago in reply to Irwin Nederbragt

Prodigy 50 points

Power management

Power management forum

LM3463: Minimum Sink Current