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Abhijeet Abhijeet1
3 days ago
Power management
Power management forum
LM5146-Q1: Input/Output transience
TI Thinks Resolved
Part Number:
LM5146-Q1
Hi there I am facing an issue with the LM5146 buck. I am using it for a 58V to 12V 5A application. When the input of "58V" is given to the buck through a two pin connector, a huge transience is observed at buck input...
Don Cutler
26 days ago
Power management
Power management forum
LM5146-Q1: Can Comp Pin Be Driven Directly?
TI Thinks Resolved
Part Number:
LM5146-Q1
Hi, Please see attached preliminary PDF schematic which shows one of two Buck Converters. I am trying to use two LM5146 as variable current sources using local output shunts to create the voltage feedback. The shunt output is...
Timothy Hegarty
22 days ago
Power management
Power management forum
RE: LM5146-Q1: Buck Converter
Sure, try a 2.2Ohm and 470pF from SW to GND. And add a 10 Ohm boot resistor.
Timothy Hegarty
1 month ago
Power management
Power management forum
RE: LM5146-Q1: The High Side Mosfet fails with a DC Motor Load
Hi Naman, Here are some comments: Inductor power dissipation in the quickstart file is 16W at 24A - need a lower DCR. high-side MOSFET loss is also way to high. Each 5 x 6mm package can generally dissipate 1W. Use 60V or 80V devices (100V...
Kaji@PAN
4 months ago
Power management
Power management forum
LM5146-Q1: Are overcurrent protection and thermal shutdown 100% tested?
Resolved
Part Number: LM5146 - Q1 Hi, I am considering using the LM5146QRGYTQ1 device. (Question
user5163865
4 months ago
Power management
Power management forum
LM5146-Q1: internal structure / section drawing
Resolved
Part Number: LM5146 - Q1 Hi, Can TI provide "internal structure / section drawing" to customers
Dajon McGill
4 months ago
Power management
Power management forum
LM5146-Q1: Stops working on input transient
Resolved
Part Number: LM5146 - Q1 Hey Team, I have a customer that is using the LM5146 - Q1 . The board has quite
Pawel Wozniak1
4 months ago
Power management
Power management forum
LM5146-Q1: LM5146-Q1 high no load input current
TI Thinks Resolved
Part Number:
LM5146-Q1
Hi, I've got a problem with one of the designs based on LM5146. All seems to function correctly except for quite high input current as for no load (it consumes roughly 50-60 mA of current depending on Vin). We've manufactured...
Dinar Talibullin1
4 months ago
Power management
Power management forum
LM5146-Q1: WEBENCH® Tools/LM5146-Q1:
TI Thinks Resolved
Part Number:
LM5146-Q1
Hello. I have a problem with LM5146 controller on my board. It`s temperature is 100C! Vin=56V, Vout=12V, I load = 0.3A. Tell me please how can i fix that? I have attached schematic - i have generate it on ti webbench power constructor...
Mahendra Patel1
3 months ago
Power management
Power management forum
LM5146-Q1: how does pre biased startup work
TI Thinks Resolved
Part Number:
LM5146-Q1
Hello Team, My customer is doing design analysis of
LM5146-Q1
based design. They want to understand mechanism for pre-biased startup, as they always have a battery connected at the output. This explanation will help them to...
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