topic Re: MC34845 current capability in Other NXP Products

MC34845 current capability

hcontigiani — Mon, 07 Nov 2016 19:30:04 GMT

Hi,

I am looking at the MC34845 datasheet and I was wondering why it can only handle total of 180mA (30mA per channel) when it has a 2.1A Boost switch?

His brother MC34844 has a 2.5A boost switch and it is able to manipulate 80mA per channel. It is true that MC34845 can only manipulate backlight of 180mA?

Thanks, Hernán.

Re: MC34845 current capability

diegoadrian — Wed, 07 Dec 2016 17:15:46 GMT

Hello,

Thank you for writing.

Unfortunately, it is true that the MC34845 can only handle a total of 180 mA.

The main difference between his brother, is because the MC34844 can drive 10 outputs. That is why the MC34844 has higher boost output.

I hope this answers your question.

Best regards,

Diego.