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Honored ContributorCyclone III FPGA power supply problem
hello, i am working on fpga based project. i m using cyclone3 fpga. in dat we hav 1.2v n 3.3v supplies necessary for i/o operation. we are using two TPS54310 ic's for both the supplies. we connect...
Altera_ForumHonored Contributor
Honored Contributorhello sir,
i m workin on cyclone III altera FPGA chip..... TPS54310 does exist...it is Texas instruments IC. i have its datasheet. it is a SYNCHRONOUS BUCK PWM Regulator....3v to 6v input voltage. its output range is 1.2v to 3.3v. (Acc. to Datasheet) 1) pin17 is VBIAS its voltage range is min 2.7v max 2.9v typical- 2.8v which is coming correctly 2) pin2 is VSENSE its voltage range is -0.3v to 4v which is coming around 0.4v but it should be 0.9v atleast for the IC to produce 3.3v. the capacitor(6.8uF) we are using across the inductor(2.2H) at the output. we tried without that capacitor......but its not showing any output..... Vout is 0v. sir i hope u got some idea abt the Ic we are using & the results we got.... plz suggest any ways or any other alternatives which we should use to correct this issue... thank you ann
