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ElectronicAdept
1 month ago
Power management
Power management forum
UCC2808A-2: Trouble with PWM duty cycles
TI Thinks Resolved
Part Number:
UCC2808A-2
Hi Dear Support! I'm trying to run the device from WEBENCH designer, here's the link: webench.ti.com/.../SDP.cgi COPY The problem is
UCC2808A-2
is not reacting for changes of Vin and (or) Vout. I have tested...
ElectronicAdept
1 month ago
Power management
Power management forum
RE: WEBENCH® Tools/UCC2808A-2: Push-Pull: Issues with MOSFET's gates
Hi, Could you please guide me how it must be done? Here is Ns1 and Ns2 in comparision to Np, while I have 2 primary windings. It means Ns1/Np1 = 1.905 and Ns2/Np2 = 1.905 or secondray windings turns must be in proper ratio to whole primary winding...
Peter Meaney
10 months ago
Power management
Power management forum
RE: UCC2808-2: Wrong information in UCC2808 PDF?
Hi Choi, Thanks for bringing this to our attention. The last line in the table should be
UCC2808A-2
. We will add this to the documentation queue to update the datasheet. Regards Peter
Satoshi
over 2 years ago
Power management
Power management forum
UCC2808A-2: Power Dissipation Calculation
TI Thinks Resolved
Part Number:
UCC2808A-2
Please let me know about how to calculate power dissipation for
UCC2808A-2
or the other Push-Pull PWM. If there better that available application note or calculation tool. Best regards, Satoshi
Teng Feng
over 1 year ago
Power management
Power management forum
RE: UCC28C41-Q1: dc-dc
Hello, For your requested power spec, push-pull converter is recommended, you can choose IC controller
UCC2808A-2
. Regards, Teng
John Griffin1
over 1 year ago
Power management
Power management forum
RE: LM5030: LM5030 push pull step up
Hello Watchaphong, You could use the LM5030 for such an application however 100kHz is below the minimum operating oscillator frequency of the ic. You should consider using the UCC2808A-1 or the
UCC2808A-2
which is another push pull controller and...
user3812683
over 4 years ago
Power management
Power management forum
UCC2808A-2: UCC2808A-2 error amplifier open loop gain test
Part Number:
UCC2808A-2
Hi, My problem is ucc2808a2's error amplifier open loop gain test. Somewhere between 0.35 and 1.2 volts on the COMP pin. you will start to get pulses. at the comp voltage increases the pulse widths will get larger. Beacuse...
Wangxin Huang
over 3 years ago
Power management
Power management forum
RE: UCC2808-2: Repeated fault analysis
Hi Alon, It meant ambient temp rather than junction temp. 87C Ambient temp exceed max recommended operating range of UCC2808-2. Can you lower the ambient temp to see where the part starts switching? For the
UCC2808A-2
Q1, I compared it against UCC2808A...
Rafeeq MUHAMMED
5 months ago
Power management
Power management forum
RE: UCC28950: UNABLE TO use design tool for spec. SLUC222D (PSFB) ( UCC28950 Excel design Tool),
Dear Colin, thank you for reply, 1) what is "Transformer inductance" & "Inductance" marked RED color (my earlier screenshot) ? 2) Can you give a quick comparison about UCC2808A & LM5033 which is more suitable for me ...
Hirotsugu Kobayashi
over 4 years ago
Power management
Power management forum
UCC2808A-1: UCC2808A Wide Input Range
Resolved
Part Number: UCC2808A -1 Is it possible to achieve a circuit of Fig. 2 of ucc2808 data seat
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