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LM3556 / I2C Hi-z input

Ryuji
Guru 20090 points
Other Parts Discussed in Thread: LM3556

Hello,
 
Can I use LM3556 with below conditions?
 
---
Vin=3.4 to 4.2V
SCL, SDA: Hi-Z
EN=Low
---
 
In our customer LM3556 is always ON.
They considered that increasing current consumption by Hi-Z I2C input.
I understand that I2C input must not be Hi-Z.
But if EN is Low,  Hi-Z input for I2C is acceptable?
 
Best Regards,
Ryuji Asaka