LM3643: pin connection confirmation

Randy Chen

Part Number: LM3643

Hi,

Customer would like to confirm if it is OK to tie the HWEN and TX pin together? and tie the STROBE and TORCH/TEMP pin together? Any concern or side effect?

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Best regards,

Randy Chen

over 7 years ago

0 Greg Lubarsky over 7 years ago

TI__Intellectual 1940 points

Randy,
There should not be an issue so long as the TX pin and Torch/TEMP pin are disabled. Please see the following appnote.
www.ti.com/.../snva759.pdf

Greg

0 user3817758 over 7 years ago in reply to Greg Lubarsky

Prodigy 40 points

Hi Greg,
If we want to use for IR LED application, did STROBE(B2) need to pull high?
Can we keep STROBE(B2) floating, and set TORCH/TEMP(C3) to TEMP mode?
Thanks.

Shi

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LM3643: pin connection confirmation