LM5642/Terminal connection when single output

Tsukui Yusuke

Guru 21930 points

Other Parts Discussed in Thread: LM5642

Hi,

Our customer considers to use LM5642.
Please let me know about LM5642.

Can I use LM5642 with single output?

Are following pin connections for single output correct?

・ON/SS2(10pin)→GND

・Vdo2(19pin)→open

・COMP2(12pin)→open

・ILIM2(13pin)→open

・KS2(14pin)→open

・RSNS2(15pin)→open

・HDRV2(17pin)→open

・CBOOT2(18pin)→open

・SW2(16pin)→open

・LDRV22(20pin)→open

・FB2(11pin)→open

LM5642 is used in the existing system.

so customer want to use it.

best regards,

Yusuke

over 12 years ago

0 Terry Allinder over 12 years ago

TI__Expert 3545 points

Yusuke,

What you are proposing for the Channel 2 unused pins is probably ok. I worry about open inputs to the LM5642, as an alternative you might try grounding COMP2, ILM2, KS2, RSNS2, and FB2. Yes ground ON/SS2. The other pins I would leave open.

Terry

0 Tsukui Yusuke over 12 years ago in reply to Terry Allinder

Guru 21930 points

Terry-san,

Thank you for the answer.

Best Regards,
Yusuke,

Power management

Power management forum

LM5642/Terminal connection when single output