BQ25101: Question of input voltage range

Ken Kwack

Part Number: BQ25101

Hello Team,

I can see the input range with 4.2V to 6.5V but there is 30V input rating too.

Could I know the meaning of 30V input rating? And it looks too wide input range for 4.2V~6.5V operation. Is there any reason of it? Thank you!

over 1 year ago

0 Bill Johns over 1 year ago

TI__Guru 70106 points

Hi Ken

The 4.2V to 6.5V range is normal operation.

Above 6.5V ( 6.52V min, 6.67V typical, 6.82V max) unit enters input over-voltage protection (OVP) and shuts down. Unit is protected up to 30V and will not be damaged.

0 Ken Kwack over 1 year ago in reply to Bill Johns

TI__Prodigy 340 points

I understand, then why the Damage voltage(30V) is too high than OVP value(6.5V)?

0 Bill Johns over 1 year ago in reply to Ken Kwack

TI__Guru 70106 points

Hi Ken

The OVP value (6.5V) is where unit will shutdown, input voltage is disconnected from most of circuit by shutting off first power transistor. This device is rated for 30V while circuit after that is not. This device is off at 6.5V and will not be damaged by voltage below 30V.

OK to email me on this question for more info.

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BQ25101: Question of input voltage range