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Tool/software:
Hi Team,
May I know how to implement the TPS61291 soft start function?
It seems it is fixed and cannot be adjustable.
Thanks.
Hi Peter,
The expert is OoO today and will be back next Monday.
Best Regards,
Johannes
Hi Johannes,
Thanks for the assistance to reply .
Hi Peter,
To be honest, the soft start process could be referred in figure 27.
Follow this tip: After the EN/BYP pin is tied high, the device starts to operate. If the input voltage is not high enough to supply the control circuit properly, a startup oscillator starts to operate the switches. During this phase, the switching frequency is controlled by the oscillator and the switch current is limited. As soon as the device has built up the output voltage to about 1.8 V, high enough for supplying the control circuit, the device switches to its normal hysteretic current mode operation.