LP8860-Q1: What is the minimum time to set the VDDIO / EN pin to 0 V?

user5246479

Part Number: LP8860-Q1

There is a VDDIO / EN pin, how is the minimum time to keep this pin at 0 V?
The purpose is to ensure a reliable reset against power ON / OFF etc etc.
Please let me know if there is a sequence to rise.

over 7 years ago

0 Sung Ho Yoon over 7 years ago

TI__Expert 4565 points

Hi Yamanouchi-san,

EN input of LP8860 is filtered out for shorter than ~10us, so please make sure off time of EN signal longer than 10us. Otherwise EN input signal will be ignored for off period. For on time of EN input, it should be high until boost softstart is finished and LED light turns on to complete power up sequence, so use longer than 100ms of on time at least.
Hope this helps,

0 user5246479 over 7 years ago in reply to Sung Ho Yoon

Prodigy 20 points

thank you very much!

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LP8860-Q1: What is the minimum time to set the VDDIO / EN pin to 0 V?