Part Number: LM51561 Hi team,
My customer is using LM51561, and want to simulate with our Pspice model. But they are giving feedback that this pspice model could not be open successfully.
Could you pls help to check if any wrong here. If this model could…
Hi Oba,
there is an application report discussing softstart for flyback:
https://www.ti.com/lit/pdf/snvaa44
Note: CCM or DCM does not have an (significant ) impact on the softstart time.
Best regards,
Stefan
Part Number: LM51561 Hello,
I would like to know the input current on FB pin of the LM51561.
My application requires few hundred volts at the output and to minimize the dissipation on the feedback resistors I will use high value for them.
The risk…
Part Number: LM51561 When I start to increase loading, I am getting a phenomenon where the controller will completely skip PWM cycles and eventually transition to half the switching frequency (starts at 100kHz, transitions to 50kHz and then overcurrent…
Part Number: LM51561 TI WEBENCH - LM51561-Q1- Flyback
Hello Team,
I wanted to design a flyback converter with Vin of 10-18V and Vout of 12V with Iout as 3A.
I used quick start calculator and tried to design using TI WEBENCH with LM51561-Q1 Flyback.…
Part Number: LM51561 Hi team,
Do we have the reference design for this case? Do you have any concern for 72W output?
I think I need a clamp circuit at Bias pin and secondary side use self-driven synchronize MOSFET.
Thanks.
Leo
Hi Denny,
The signal at COMP is now at the max. value. This means a high duty cycle is requested. The fact that there is nevertheless only a very low duty cycle means that there is an overcurrent condition happening. Also in the picture you send last…
Hi Omair,
Since the schematics seems ok, I would like to see the layout and see if there is any issues there?
As one final thing to make sure it is not a UVLO lockout, could you also share your Vin signal alongside the Vout? I want to see what happens…
Part Number: LM51561 Hello,
We are ready with our Schematics which TI suggested parts for Boost Converter.
We want to you to verify our Schematics.
our requirements for Boost Converter IC are:
1. Input Voltage: 12VDC-60VDC
2. Output Voltage…
Part Number: LM51561-Q1 Other Parts Discussed in Thread: TPS40210 , LM5155 Hello together,
currently, I'm working on a new DCDC converter. For that, I would like to do some simulations in MATLAB Simulink. Therefore I would like to ask, if a working model…