Part Number: LM5155 Other Parts Discussed in Thread: TL431 Hi Experts,
In LM5155 application note SNVA866A , what's the purpose of Rcomp and Ccomp which are connected Vcomp?
If it's for compensation purpose, how it contribute to Zero and Pole?
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Part Number: LM5155 Dears:
Customer want to know if use LM5155 to do flybck in DCM mode, duty cycle is over 0.7. Do they need to do compensation ? Thanks.
Hi Ashot,
Thanks for the update. The low duty cycle indicates that the device runs in overcurrent protection (OCP). The device pulls down the gate signal after the minimum on-time as the voltage at the CS pin is above the OCP trigger votlage (100mV)
Ashot…
Part Number: LM5155 Hello,
I am designing a SEPIC converter with the LM5155.
Therefore I am looking for the document "How to Design a SEPIC Converter Using LM5155". Where can I find it?
So far I have only found this one: https://www.ti.com/lit…
Part Number: LM5155-Q1 Customer would like to design with LM5155-Q1 for DCM Flyback. Could you please help share the related design tool? The tool in ti.com is for CCM.
Part Number: LM5155 Hi,
I using below condition on LM5155 webench but can't generete new design.
Would you please help check below condition is ok for LM5155?
Thanks!
Jeff
Part Number: LM5155 Hello TI Engineers,
I am currently designing a 24 to 5.45V DC to DC converter using sepic topology i have used the quickstart calculator to design the circuit but the gate voltage seems to go down to zero after 5 microseconds. I have…
Part Number: LM5155-Q1 While I use 5155 LDO as vcc, the voltage is 6.85V. it works well,
I want to use higher voltage as mosfet driver, so I link VCC to VBIAS, then gate pin output waveform is wrong, so what should I do if I want to get higher gate vo…
Part Number: LM5155 Hi TIer
The customer designed a flyback circuit using LM5155. The input voltage is 16V. Its transformer turns ratio is 4:54, the transformer inductance is 10uH, and the switching frequency is 100khz. At the output end, a DAC and a…