Part Number: UCC28C42 Tool/software: Hi Team,
We saw a different waveform in different date code of UCC28C42. Please help to check if there is any issue.
Condition: Vin 275VAC/50Hz, Output max.load and then connect to short
Date code1: After…
Part Number: UCC28C42 Tool/software: Dear Experts,
We are designing a BUCK circuit with a wide input voltage using UCC28C42. The input voltage is DC 20-300V and the output voltage is 12V 3A. We want to use the primary auxiliary winding as feedback.…
Part Number: UCC28C42 Tool/software: Dear TI team,
We need your help. Can you tell us if this component is of your manufacture or not ?
Are the both marking are from TI ?
Please see attached photos and x-ray photos.
Broker
Original
X-ray…
Part Number: UCC28C42 Hi Team,
I am doinjg simulation fdor the ucc28c42 accordance with ti webench schematic for vin 40v to 200v dc ang vout 12v 2a,
i m observing that circuit giving right sim results with 180v dc in but not with 40v, could u…
Part Number: UCC28C42 Tool/software: Hi,
PN: UCC28C42DR
UCC28C42DR, The customer received two packages of 2500 pieces each, with two batches and two origins: Malaysia and Mexico.
The UCC28C42DR from Malaysia has 24V overload protection issu es.…
Part Number: UCC28C42 Tool/software: Hi Team,
i would like to check with you why the OCP pot will decrease during high temp?
we found some use case when work at high temp ,it is more easy to triggers the OCP .it there a issue relate to IC itself or…
Part Number: UCC28C42 Tool/software: Hello,
On UCC28C42:
1. Is it acceptable to exceed a timing capacitor value of 4.7nF in order to achieve the desired switching frequency and max duty cycle?
2. If synchronization is utilized, does the natural…
Part Number: UCC28C42
Tool/software:
Hello,
In the new and updated datasheet of UCCx8C4x (REV I) a new line of COMP Pin sourcing current when FB pin shorted is added and current = 5.5mA max.
1. Why the new behaviour?
2. Was it ways like it or…
Part Number: UCC28C42-Q1 Hello Team,
i have a query related to UCC28C42-Q1. There is some information reletad in electrical characteristics which i wanted to confirm.
In the PWM duty cycle, where VFB > 2.6 , then output of the ASIC duty cycle…
