Part Number: UCC28C45-Q1 Hi, iam using UCC28C45-Q1 for flyback design, but my pwm pulses are skipping and also cs pin is picking noise even after using RC filter with lower cutoff frequency. Also is there any issue if we use ic ground and power ground…
Part Number: UCC28C45 Other Parts Discussed in Thread: PSPICE-FOR-TI Hello, ucc28c45 pspice lib model is not functioning in my LTspice. Nothing is working, not even the oscillator. I can usually import models in this way from TI. Please help, thank y…
Part Number: UCC28C45
Hey,
We are designing an isolated 12V (aux battery) to 12V (1.5A output) power supply using TI Webench design tool for our electrical sub system. However power supply is not behaving as per the design suggested by webench.
1. 12V…
Part Number: UCC28C45 Hello,
I have a below requirement.
Input voltage: All range battery input i.e. 14.4V to 154V input
Output Voltage: 2.8VDC
Output Current: 0.1A to 2.5A (can switch immediately)= Wattage of ~9W
Topology: PSR, Flyback
Ripple of +/-50mV…
Other Parts Discussed in Thread: UCC28C45 , UC3714 , UC2714 for Low side Active clamp forward converter can i drive both N-MOSFET and P-MOSFET (Q1,Q2) using UCC28C45 ?
if yes, please suggest solution for generate the dead time Tdel as mentioned in below…
Part Number: UCC28C45-EP Hi,
Good Day.
On the component datasheet, an example application schematic (sheets 9 & 10 – Figure 4) shows an RC circuit (see circled in red below) implemented between the Current Sense pin (#3) and the Primary of Transformer…
Part Number: UCC28C45 Hi Team,
For the UCC28C45 controller. Is it normal for the controller to pulse the output during no-load conditions?
The first image is with 20mA load, then 40 mA, and the final one that is steady 5V output is 60mA load.
Thanks…
Part Number: UCC28C45-Q1 Other Parts Discussed in Thread: LM5155-Q1 , LM3481-Q1 , UCC28C45 , UCC28C55 , LM5155 , LM3481 Hi Expert,
Our customer is developing OBC/DCDC platform. I see both UCC28C45-Q1 PWM controller and LM3481-Q1 or LM5155-Q1 flyback can be used…
Part Number: UCC28C45 Other Parts Discussed in Thread: TL431 Team,
Customer has made a Flyback design based on UCC28C45: Vin : 85 to 265V, Vout = 17.5V, Iout = 0.7A The design shows on the COMP output an oscillation tendency or instability depending on the…
Part Number: UCC28C45 Team,
Customer implemented the below slope compensation (R RAMP = 10kΩ).
When the input voltage increases then there is a state where the controller works with two different duty cycles. The enclosed video shows the voltage input increase…