Part Number: UCC2813-2-Q1 Other Parts Discussed in Thread: UC2842 Dear Sir,
could you help check Gain Margin and Phase Margin of UCC2813-20Q1?
please refer below specification and schematic(excel).
Specification is below
Input Voltage : 250Vdc…
Part Number: UCC2813-2 Hi Experts:
My customer is using the UCC2813-2 for the power design , the turn on threshold is 12.5V, however, the maximum rating of VCC is 12V , so I have two questions:
1) The start up voltage should be above the 12.5V which…
Part Number: UCC2805 Other Parts Discussed in Thread: UCC2813-5 Hi,
Good Day.
Customer would like to ask you a few questions that arise in the framework of a new design that currently is being developed.
The new PSU design is indented for automotive…
Hi Michael,
The UCC28C4x and UCC2813-x devices are normally used in secondary side regulated designs which use a TL431 and opto-coupler to feedback the error signal.
In these designs it should be possible to get better than +/-5% total regulation…
Part Number: UCC2813-0-Q1 Hello,
I am planning to design a flyback converter with the following specifications:
Vin: 9-18V
Vout: 300-500V
Output power: 20-40W
Operating frequency: 100KHz
Please clear/provide suggestions for the following…
Other Parts Discussed in Thread: UCC28911 , UCC28740 , LM5023 , UCC2813-2 , UCC2813-0 , UC3842 , UCC2800 , UCC2802 , UCC28C42 , UCC28C43 Dear all.
I think about the multi-output by flayback. (DC3.3V/450mA, DC15V/10mA, DC-15V/10mA, DC24V/30mA) Our customer…
Marc,
To add on to what Bernard has explained above, please see attached presentation for all the details behind the explanation on UCC2813-x VCC abs. max rating and UVLO turn on threshold.
Explain on UCC2813-X VCC Abs.pptx
Other Parts Discussed in Thread: SG2524 , UC28025 , UCC28950 , UCC2895 Dear All,
I have two questions about IC numbers:
1) what is the meaning of prefixes, ie UCC, UC, SG, TL? ( for example SG2524 or UCC2813 )
2) what is the meaning of digits after…
Hello again!
Parts arrived, so I made a few small changes:
1. Replaced the UCC2813 part with UCC2813QDR-2Q1
2. Replaced C11, the 6.8nF snubber cap, with a film cap
3. Added a 1.0uF capacitor in parallel with the output capacitors C19 and C24 …
Hello Edward,
Based on this rather limited set of requirements, the tentative answer is YES.
Can you please clarify if the input voltage Vin is AC or DC?
If it is DC, then yes the UCC28740 can readily support that spec since the HV input is rated…
