LMR66430: ISO7637-2-Pulse 2a test

Henry Wang3

Part Number: LMR66430
Other Parts Discussed in Thread: LM5169, LM5168

Tool/software:

Hi Sir,

My customer would like to use LMR66430R5RXBR(operating freq at 2MHz) to pass the ISO7637-2-Pulse 2a test.

They will add a 58V EMI/EMC protection component at pin-out Vin of LMR66430R5RXBR, and do the many times test to apply a 58V voltage with 50usec at Vin, is the LMR66430R5RXBR pass this test? if there have any suggest device, please advise it.

They also would like to know the pin-out Vin of LMR66430R5RXBR in transient status, it can support the voltage range is?(ex:100V), the time range is?(ex: 1msec)

4 months ago

0 Joshua Austria 4 months ago

TI__Mastermind 24115 points

Hi,

This part can only support up to 36VIN for operating and has an Absolute Maximum Rating of 42VIN. Operation of the device outside of this range can result in damage of the device and TI cannot guarantee the performance of the device when operating outside of the specifications given in section 6 of the datasheet.

Thank you,

Joshua Austria

0 Henry Wang3 4 months ago in reply to Joshua Austria

Genius 3325 points

Hi Sir,

Thank you for your explanation.

I would like to find a 60V/3A DC-buck device to customer, need the efficiency up to 90%, when the operating freq at 2MHz, Vin = 12V, Vout = 5V, load at 0.5A~1.5A. Could you advise a device to me? Thanks!

0 Joshua Austria 4 months ago in reply to Henry Wang3

TI__Mastermind 24115 points

Hi Henry,

For this request I am looping in a colleague, who can point you to the most suitable device for your application.

Thank you,
Joshua Austria

0 Henry Wang3 3 months ago in reply to Joshua Austria

Genius 3325 points

Hi Sir,

Any update?

+1 Joshua Austria 3 months ago in reply to Henry Wang3

TI__Mastermind 24115 points

Hi Henry,

The only device we have in this group that can work in this fashion is the LM5168/LM5169. Please see this application note on how to achieve this: https://www.ti.com/document-viewer/lit/html/SSZT975

Thank you,

Joshua Austria

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LMR66430: ISO7637-2-Pulse 2a test