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TPS1663: ISO7637-2 Pulse 5b Load Dump test

Henry Wang3
Genius 3735 points

Part Number: TPS1663
Other Parts Discussed in Thread: TPS2663

Hi Sir,

My customer is asking the TPS1663 if it can pass the ISO7637-2 Pulse 5b Load Dump test?

  • +1
    TI__Guru** 107821 points

    Hi Henry,

    TPS1663 can handle transients voltages up to 67V so, it can support load dump events on 24V rail.

    What is the application and end product ?

    BR,

    Rakesh

  • 0 in reply to Rakesh
    Genius 3735 points

    Hi Sir,

    ECU power and I/O output current limiting protection for the scooter.

  • 0 in reply to Henry Wang3
    TI__Guru** 107821 points

    Thanks Henry

    Is it acceptable if it is not AEC-Q100 qualified device?

    Regards,

    Rakesh

  • 0 in reply to Rakesh
    Genius 3735 points

    Hi Sir,

    Yes, it is acceptable to use a non AEC-Q100 qualified device.

    They also considered the TPS2663, is it available to use in the same condition?

    What are the differences between TPS1663 and TPS2663 both devices? Does it refer to the different parameters shown in the comparison table?

    Why did the TPS2663x develop two current limiting types of devices for 1x IOL and 2x IOL? Is it just for the pulse current support function on 2x IOL devices? what are the design requirements for the 2x IOL devices, if the customer needs to consider using them?

  • 0 in reply to Henry Wang3
    TI__Guru** 107821 points

    Hi Henry,

    Henry Wang3 said:

    They also considered the TPS2663, is it available to use in the same condition?

    Yes

    Henry Wang3 said:
    What are the differences between TPS1663 and TPS2663 both devices? Does it refer to the different parameters shown in the comparison table?

    The major difference is TPS2663 has B_GATE pin to drive external blocking FET to support reverse current and reverse voltage protection which are essential for surge protection. Rest all parameters are same 

    Henry Wang3 said:
    Why did the TPS2663x develop two current limiting types of devices for 1x IOL and 2x IOL? Is it just for the pulse current support function on 2x IOL devices? what are the design requirements for the 2x IOL devices, if the customer needs to consider using them?

    We see some loads need higher pulsed current support in steady state to address their transient needs. Customer can decide based on the current profile of their load.

    BR,

    Rakesh