TPS61288: OUTPUT

Hen Lange

Part Number: TPS61288

hi,

is it possible to control this boost from a microcontroller?

if it can be done, please send me the setup for that operation

thank you

Hen Lange

0 Zack Liu over 3 years ago

Hi Hen,

Do you mean hoping to enable and disable the device? You can connect the microcontroller to device EN pin.

0 Hen Lange over 3 years ago in reply to Zack Liu

hi,

no, I mean controlling the output voltage level by using a microcontroller DAC

0 Zack Liu over 3 years ago in reply to Hen Lange

Hi Hen,

No problem.

Connect the DAC output with a resistor to FB pin like below picture:

0 Hen Lange over 3 years ago in reply to Zack Liu

o.k great :-)

do you have a calculation excel for R1, R2, R3 values?

0 Zack Liu over 3 years ago in reply to Hen Lange

Hi Hen,

You can download the Power Designer Stage tool on ti.com.

Open it. Choose Tools->Output voltage scaling->Dynamic analog output voltage scaling

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