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BQ24773: SDA/SCl Impedence When Device Is Off

Part Number: BQ24773

Hi,

What input impedance does SDA and SCL have while the BQ24773 is off? This device will be on a shared I2C bus and I plan on only powering the chip only from the AC input to save battery life for a handheld device. This creates a scenario where my system is on talking to other I2C devices while the BQ24773 is off. Please confirm the input impedance or please confirm I can safely run other devices on the I2C bus without the un-powered BQ24773 pulling my bus to ground. Thanks! 

Best,

JTL