Part Number: LM5021 Hi, Team.
i've been asked by Customer as below.
Q1. how much voltage threshold of CS pin would vary in 0℃~125℃ as MIN and MAX?
Q2.could you give us the graph which shows the voltage threshold of CS pin would vary?
Part Number: UCC28730-Q1 Other Parts Discussed in Thread: UCC28730 , LM5021 Dear TI
I'm developing a 200W power source.
Ask if ucc28730 device development is possible.
The design specifications of the 200w power supply are as follows.
-80~120Vin…
Part Number: LM5021 Hello,
I am trying to use LM5021 to convert 220V AC into 5V DC.I have one doubt from the reference design of LM5021. What is the purpose of D2 and D4? According to me only D4 should be there because when MOSFET (Q1) turn OFF then…
Part Number: LM5021 Other Parts Discussed in Thread: PMP20278 Hi
I has used the LM5021 to design a 10W DC / DC module, but the PWM frequency unstable.
Do you need to pay attention to the place（PCB Layout)?
no loading ripple over spec, has any solution…
Hello Markus,
I learned from internal sources that only the LM5021-1 current-mode control device (with 80% duty-cycle capability) has been qualified to the automotive Q100 standards, and there is NO current plan to qualify the -2 version (with 50%…
Part Number: DRV10987 Other Parts Discussed in Thread: LM5021 , UCC28700 Hello,
I have been looking for a SMPS to simulate in TINA for DRV10987. I have tried with UCC 28700, LM5021 I have not got expected results becuase of transformer.
I have been…
Part Number: UC2856-Q1 Other Parts Discussed in Thread: UC2825A-EP , UCC28220-Q1 Hi TI Team,
For 110 V_nom ( ±40%) input DC and 24 V (300W) output DC/DC converter WEBENCH suggests only LLC topology with controller ICs not having automotive rating…
Part Number: LM5021
Hi team,
Could you please help check the schematic and layout? Thanks.
Layout is also included in the PDF file.
Input: 230VDC~700VDC
Output: 12V/7.5A
APS_12V7.5A.pdf
Robin
Hello Nicholas,
Converting a -Vin negative voltage to a -Vout lesser negative voltage is fairly easy as the topology goes. A buck or synchronous buck will work fine. The problem is sensing the negative output voltage. Since the IC and converter circuit…
Part Number: LM5021 Other Parts Discussed in Thread: PMP10215 Hi Team,
We want to use PMP10215 for our product, and we find a question about this circuit, pls. help to explain the function of the below circuit red highlight.
tidrlm1a.pdf
