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Hi team. This is a general question. Would it be possible to use a 150V or 200V GaN FET that has a low-Rdson (few milliOhms) at Vgs=4V as secondary-side FET with the INN4276C? I would like to know if there are any possible drawbacks. Thanks.

Issue: some of (few%) devices PSU (12V 2.5A) didnt start after power cycling. Looks like Cbpp still charged, Cbps discharged while applying input, typically its 1-20s after poweroff. Also - didnt work CC profile. If PSU started someway - it works perfect, in full range of input voltage and output

Both devices INN3167C-H101 (output profile fixed CC), INN3168C-H101, and INN3670C-H606 perfectly works in CV mode, in different designs. IS resistors 10mOhm (ie 3.5A protection/CC). Both design very similar to DS 12V power adapter. Now, need a CC device (battery charger), so trying existing solutions - both made autorestart close to

Good morning, i wanted to buy one 1SP0340M2S0-FZ1800R45HL4 but I'm not able to find it on sale in local distributors, only 1SP0340V2M0-45 is available. I imagine that the two gate drivers are functionally the same apart from the pre mounted driving components. However, in the 1SP0340V2M0-45 product datasheet you provide

Hello team, We have designed 3W flyback converter for universal input. No auxiliary winding. Opto based secondary feedback. We have got failure as below in only one device. Other all devices working fine. LNK3694 drain to source pin shorted. LNK3694 switch is burned. optocoupler collector to emitter pin shorted. Opto

Hi colleagues, Have some troubles with INN3167 PSU EMI. Device is quite compact and sensitive, have an RF part. Previously I controlled this (subj), using external switch with gate resistors. But INN switch is internal and very fast to increase efficiency. Is it a good idea to use a ferrite

What is the minimum and maximum possible output voltage for the LinkSwitch-TN in a high-side buck (direct feedback) circuit, like the one shown in figure 5 on page 4 of the datasheet? If the limits depend on the input voltage, what is the relationship? And what factors lead to these

Hello, I'm designing a power supply with an INN5475. In the AN110 I have the following text: // Set Switching Window Optimization (0x02) = 0x1F Inno5Pro_Switch_Window_Optimization (INNO5PRO_SWITCH_WINDOW_RECOMMENDED); // Set Transient Response 1 (0x32) = 0x140A Inno5Pro_Write_Loop_Speed1 (INNO5PRO_LOOPSPEED1_RECOMMENDED); // Set Transient Response 2 (0x34) = 0x1F84 Inno5Pro_Write_Loop_Speed2 (INNO5PRO_LOOPSPEED2_RECOMMENDED); ,but information about

The LNK3206 has two current limits defined. So why two Ilimit current defiend and which to chose to design Buck Inductor. at CBP = 0.1 uF ( di/dt = 95 mA/uSec - Max 515 mA) and (di/dt = 610 mA/uSec - Max 650 mA). If Inductor is 470 uH then

Hi, We want to do a 20W Flyback (15Vout) using Tinyswitch4. The input will be the output of the PFC stage, ie 400VDC.....do you think this will be OK, or will the 400V cause too much switching loss?

This is very agent issue. We need to place an order for PCBs for mass production in the first week of January. Please review as soon as possible. The DPA425GN part is being used as an LED driver in mass production. Sometimes, drain and source burnout occurs, and this has

I'm not getting any output from AC-DC converter circuit. I design with power integration design expert but I am not getting output do you see ay problems? What could be the reason? Is this shunt regulators chatode pins resistor or what else?

Hi, I designed a new SMPS as described in attached PiExpert report, with minor changes. Changes: used SF38G instead of SF35G, C3 has a voltage rating of 1600V, instead of R9 and R10 I used a potentiometer, that was preset to right voltage before startup of power source. This circuit

Dear Power Integration Team, We have developed an isolated battery charging circuit using IC INN3949CQ (H code 907) to charge the Li-ion battery of 48V, 2.9AH at 0.5A. Regarding this, it was already supported to design it (with it output voltage limitation of 27V max, but by an extra winding

Hi, We want to do an innoswitch flyback for 60W (VAC = 85-265VAC, 50-60Hz) , but for operation in compliance with EN62368 and at altitude of 4580 metres. As such the isolation voltage between primary and secondary is more than the standard 3kVrms. The adjustment factor from page 88 of

I made Pcb circuit of SMPS using TNY286DG-TL which convert universal input (90-250VAc ) to 5V 1.5 I designed a PCB circuit for an SMPS using TNY286DG-TL, which converts universal input (90-250VAC) to 5V at 1.5 amperes. I took help from the PI expert Software. Here is the Design PI

We have an industrial controller used in Solar application. It has two inputs for power supply: 1) R Phase of Grid (R-N nominal 240VAC, 50Hz): Wide variation in input, upto +/-30% change, with 45-55Hz 2) 48VDC (Variation from 40-60VDC) We want to generate 2 output voltages from the SMSP power

Hallo, I have designed Buck converter with Vin=(85-265)VAC, to get Vout=12VDC, Iout=360mA(CCM) using LNK3206P. Kindly support us to know : 1- Are the selected components suitable for the design? 2- Is this power supply have the ability to provide 360mA without any issues?? 3- 3- Will the output voltage be

Hi All I was looking at the app note (again), but the TinySwitch-iii is no longer available. Can you simply replace the chip with a TinySwitch TNY290P ? Thanks Simon

Hi all, I’m designing a ~3 W, 12 V non-isolated buck converter using the LinkSwitch-TN2 family (e.g. LNK3205). My input is universal AC (85–265 VAC). I found the Power Integrations reference design RDR-721 (2.75 W, 5 V output) which covers 85–265 VAC and uses a LinkSwitch-TN2 device — screenshot attached