Part Number: UCC28880 Other Parts Discussed in Thread: UCC28810 , UCC28910 Hi all,
I want to give me cct.
Because WEBENCH cannot meat this design.
Vin DC38V to DC156V Vout 20V Iout 30mA Freq. Over 20kHz (all Vin range)
No isolation No stop at Input voltage…
Other Parts Discussed in Thread: UCC28880 , UCC25600 Looking over the UCC28880 datasheet it appears the accuracy of the internal reference is +/-7%. Is this correct?
If so, is there anyway to tighten this up? Or any roadmap devices with improved accuracy…
Other Parts Discussed in Thread: PMP10143 , TL431 , UCC28880 Please let me know about mean of external components for PMP10765 and PMP10143 below.
①About noise filter, why difference capacitor value?
(PMP10765 is 1mH/6.8μH/6.8μH, but PMP10143 is 1mH/4…
Other Parts Discussed in Thread: UCC28880 , UCC28881 Hi:
I have built a 5V high side buck converter around the UCC28880 almost identical to the circuit in EVM-616. This shows a stable output under low load but a sawtooth oscillation under 50mA load. Looking…
Other Parts Discussed in Thread: UCC28880 Hello,
Our customer will try to evaluate UCC28880 and do not want to stop longer than the other supplier's device by thermal shutdown.
Could you show us the min/max value for Tj(stop) ? If there is no actual…
Hi Prithvi,
another issue you might need to solve if you use this architecture is the feedback loop as needed to regulate on Vin - Vout.
So you need to use a current mirror or if the lower accuracy is OK you can use the circuit show here
www.ti.com/.…
Other Parts Discussed in Thread: UCC28880 , UCC28881 Can I parallel 2 UCC28880 buck converters?
I want to increase current to about 150mA, so looking at paralleling 2 UCC28880 buck converters, probably by diode ORing after the L1 inductors.
Any known…
Other Parts Discussed in Thread: UCC28880 [ UCC28880 ] Low Side Buck Configuration for Dynamo
Hi,
Do you have any ideas whether UCC28880 is suitable for dynamo to have stable DC output voltage? The input voltage from dynamo is something like +/-100V (200Vpp…
Other Parts Discussed in Thread: UCC28880 Hi all
I have made one PCB to get AC110~220V to DC5V/100mA by using UCC28880.
Here is my schematic:
The 5V is OK, but the noise(sound) is annoying. I think it's coming from L2.
I don't know what's going on…