Part Number: LM5023 Other Parts Discussed in Thread: TPS92314 , UCC28056 , UCC28051 , UCC28050
I am using the LM5023 PWM controller for the design of a 19 V, 60 W AC-DC converter. For this design, how can we improve its power factor?
Part Number: LM5023 Hii..
I am designing an AC/DC converter of 60 W, 19 V output but after simulation in Pspice for TI using LM5023, the pwm controller is not turning on. What to do? A
Thanks and Regards
Part Number: LM5023 Other Parts Discussed in Thread: LM317
I am using an LM5023-2EVM and with changing the transformer and some other modifications, the output voltage is 12V. The regulated 12V is then connected to LM317HVT/NOPB regulator to obtain…
Part Number: LM5023
Hi TI expert
We have two issues while using LM5023. Please help to check.
1. The output of VCC is always overloaded. Please refer as attached screenshot.
2. VCC (pin 8) will maintain 15 V pin 2 wave and VCC will not drop to zero.
These waveforms look like a DCM flyback. The waveforms is still valley switched it just is not turning on at the first valley.
Could you study COMP, QR, CS and Qd during this condition it should help you figure out why it is not switching on…
Part Number: LM5023 I used web-bench to generate a LM5023 based design for an AC/DC power supply;
Vin 24 - 250Vac, Vout =12Vdc @1.5A
A number of custom components are specified. Web Bench does not support simulation for the resulting design. Is it safe…
Part Number: LM5023 I would like to know how to use tha QR pin.
Rated values of QR pin are 4mA negative injection current maximum and -0.3V negative input voltage maximum.
If resistor divider on the auxiliary winding connect to the QR pin , the negative…
If you go to the following link and scan halfway down the page you will find Webench designer. You can enter your design parameter and it will generate a schematic and transformer specification. You can send this to GCI, Wurth or Renco and…