questions about TPS65400's VDDD and input capacitor at I2C pins

Oliver Ou

Intellectual 2845 points

Other Parts Discussed in Thread: TPS65400

Hi,

Can you help to check and provide the current ability of VDDD pin on TPS65400? can it power external MCU?

we also wants know the input capacitor at I2C pins, it would be helpful for us to choose the pull up resistors.

Thanks.

Oliver Ou

over 9 years ago

0 Oliver Ou over 9 years ago

TI__Intellectual 2845 points

Hi,
Any feedback?

Thanks.
Olive Ou

0 Eric Guo1 over 9 years ago in reply to Oliver Ou

TI__Intellectual 2590 points

Hi Oliver,

TPS65400's VDDD current is about 10mA, it's not used to power up external device, it's power supply for internal digital circuit. For I2C pull up resistor, you can refer to EVM's design, 3k is ok for the pull up.

thanks!~

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questions about TPS65400's VDDD and input capacitor at I2C pins