TPS65266: Tolerance of EN discharge time

Atsushi Hirai

Expert 3970 points

Part Number: TPS65266

Hi team,

Could you provide the tolerance of EN discharge time at the start up(typ 2ms) in the format of xxms~xxms or +/-xx%?

Guarantee is not required. It's just for reference information.

Best Regards,

over 1 year ago

0 Zixu Wang over 1 year ago

TI__Expert 8100 points

Hi Atsushi,

My colleague will give you reply by next Tuesday!

BRs

Zixu

0 Lucia Gao over 1 year ago

TI__Mastermind 18750 points

Hi Atsushi,

Thanks for reaching out.

In theory, it keeps 2 ms with discharge resistor around 1.2 kΩ to GND and it will not have big variation. The accurate H/L limit of this spec is not available. Could you please let us know the concern for this spec range?

Thanks!

BRs

Lucia

0 Atsushi Hirai over 1 year ago in reply to Lucia Gao

TI__Expert 3970 points

Lucia-san,

It becomes their system start up time directly.

My customer just want to know that the discharge time has not a big variation.

Rough number is okay.

Best Regards,

0 Lucia Gao over 1 year ago in reply to Atsushi Hirai

TI__Mastermind 18750 points

Hi Atsushi-san,

Yes, this discharge time does not have a big variation. Could you please let me know customer's requirement of this tolerance?

Thanks!

BRs

Lucia

0 Atsushi Hirai over 1 year ago in reply to Lucia Gao

TI__Expert 3970 points

Lucia-san,

Less than +/-50%(1ms - 3ms) is okay.

Regards,

+1 Lucia Gao over 1 year ago in reply to Atsushi Hirai

TI__Mastermind 18750 points

Atsushi-san,

For a rough reference information, most of devices can satisfy +/50% requirement for this discharge time. But still a kind reminder that this is not a guaranteed accurate limit spec.

Anything unclear, kindly let me know. Thanks!

BRs

Lucia

0 Atsushi Hirai over 1 year ago in reply to Lucia Gao

TI__Expert 3970 points

Lucia-san,

One additional question from the customer.

During the EN discharge time, is the output also discharged by low side FET turned on?

Best Regards,

0 Zixu Wang over 1 year ago in reply to Atsushi Hirai

TI__Expert 8100 points

Hi Atushi,

My colleague will give you reply by next Monday!

BRs

Zixu

+1 Lucia Gao over 1 year ago in reply to Zixu Wang

TI__Mastermind 18750 points

Hi Atsushi-san,

This part does not have output discharging. Any concern from customer?

Thanks!

BRs

Lucia

Power management

Power management forum

TPS65266: Tolerance of EN discharge time