Part Number: UCC28070A Other Parts Discussed in Thread: UCC28070 , Hello,
Is the K VFF value or the equation (13) of I IMO in the data sheet different between single- and three-phase inputs? These are the operating conditions of the circuit.
Input…
Part Number: UCC28070A Other Parts Discussed in Thread: UCC29950 , UCC28070 Hi team,
Can UCC28070A be used for PFC ZVS/ZCS architecture? or any solution can be used for this topology? thanks!
Part Number: UCC28070A Other Parts Discussed in Thread: PMP40261 We are developing a 1200W power supply by using your UCC28070A. the power supply adopts bridgeless PFC construction. There are some unstable AC input current at certain AC input condition…
Part Number: UCC28070A Dear Sir
Power output: 5KW Input voltage range: 165-270 VAC PFC voltage: 410Vdc Abnormal recurrence: with full load, voltage from high voltage to low voltage test input undervoltage protection, When the voltage is about 180Vac…
Part Number: UCC28070A Other Parts Discussed in Thread: UCC28070 Hello support team,
My customer inquires the following item, could you support?
*FMEA information (adjacent pin short, pin open)
*Do you have any recommendation to put zener diode…
Part Number: UCC28070A Other Parts Discussed in Thread: UCC28070 Hi, doing a sizing calculation for a 3600W PFC with 530VDC output voltage, with the equations given on page 3 of SLUA479B, I find values that seem inconsistent to me.
Here are my calculations…
Part Number: UCC28070A Other Parts Discussed in Thread: UCC28070 Hello Support team,
Customer would like to calculate power consumption on UCC28070A, could you provide how to calculate or application note?
And they found that supply current I_VCC…
Part Number: UCC28070A Other Parts Discussed in Thread: UCC28070 Hello Support team,
My customer inquires UCC28070 Css value, could you support? Datasheet page 24 note shows "For soft start to be effective and avoid overshoot on VOUT, the SS ramp must…
Part Number: UCC28070A Hi team,
I help my customer to ask a question.
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We have a test jig for UCC28070A chips, to check we haven’t accidentally ESD damaged them.
Please advise on this test jig for UCC28070A….please may I ask if its OK?
We have…
Part Number: UCC28070A Other Parts Discussed in Thread: UCC28070 Hi Team,
Our customer has a question regarding the UCC28070A, which is how can we use this IC to set at a particular Vrms when you can achieve max power or only half of the max power?…
