Hey Tim!
I have been messing around with the quickstart tool for the LM5146-Q1 and have some questions for you. How do I calculate the Total Input Capacitance (Derated), Cin value?
Regards,
Jordan
Helo Mr Medina,
The components marked N/A are not assembled. Resistor R5 is for MOSFET current sensing (instead of shunt current sensing using R6). Also, C7 is a cap for noise reduction (typically not required) and D2 is a diode to discharge UVLO…
Part Number: LM5116 Other Parts Discussed in Thread: LM5146-Q1
Good afternoon!
Interested in the possibility of your corrections and clarifications of the circuit with the element LM5116
Specifications Input voltage 55 to 90 V Output voltage 48…
Hi Sunny, Take a look at the LM5146-Q1 voltage-mode controller. There is a quickstart file in the product folder to assist with component selection. Fast input voltage rise and fall times shouldn't be an issue. Regards, Tim
Part Number: LM5145 Other Parts Discussed in Thread: LM5146-Q1 I would like to ask that the LM5145 to do a positive 15V voltage conversion into output voltage negative 5.5V voltage( a DAC to adjust ), at the current 1A output, the output waveform is terrible…
Other Parts Discussed in Thread: LM25145 , LM5145 , LM5146-Q1 Our company is using this power solution for the first time. There are two power supplies on the module, 24V power supply, one design output 3V, one design output 4V, the following problems…
Hello,
The Qg of the 650V CoolMOS FET you specified is too high at the required switching frequency, cuasing VCC to enter current limit.
Try using 100V FETs (see the LM5116 and LM5146-Q1 datasheets for MOSFET part number recommendations).
Regards…
Part Number: LM5088-Q1 Other Parts Discussed in Thread: LM5088 , LM5116 , LM5145 , LM5146-Q1 Tool/software: WEBENCH® Design Tools So im in the process of creating a DC/DC converter.
INPUT 48V (10A possible)
OUTPUT 19.5V 10A
Im in the early phase…
Part Number: TPS40170 Other Parts Discussed in Thread: LM5146-Q1 Hello everybody,
Our product using TPS40170 failed on EMC radiated test at ~96MHz - so it's definitely common-mode noise problem! We narrowed it down with EMC probes and Spectrum Analyzer…
