Constant Current Driver 8 Channel, Source Led

Michael Esch

Other Parts Discussed in Thread: TPS61197, TPS61165

Hi there, I am hard pressed to find a constant current source led driver with 8 channels. Each channel needs to source not sink, 480mA of current. I can find plenty of current sink chips, searched for darlington array, constant current driver... but comming up empty. There is a chip M54564P or UDN2981 that would probably work but not from Texas instruments. Does TI have such a beast and where can I find it.

over 11 years ago

0 Bhavya Mathukiya over 10 years ago

Prodigy 50 points

Hi Michael

I am also looking for the same. Have you find the IC from ti to source the current?

0 Emrys Maier over 10 years ago in reply to Bhavya Mathukiya

TI__Guru* 97046 points

Hi bhavya,
The three most powerful LED drivers that I could find are the TPS61165, TPS 61169, and the TPS61197. All three of which are single channel drivers, and only the TPS61197 is capable of driving more than 400 mA. Can you give me more details about the application? What are you building that needs such high current values?

Logic

Logic forum

Constant Current Driver 8 Channel, Source Led