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TIDA-010242: TIDA-010242

Part Number: TIDA-010242

Tool/software:

We are working on  a MIL-STD-1275E Surge Protection system based on Your  Design Guide: TIDA-010242 The system is for 28 Volt DC  output  with  steady output current  of 4 Amps  wich go to 8 amps max for 70 seconds.  But we have lot of problems also with very light loads 0,5 – 1 amps .For U1 at the first samples we used the   LM74800QDDRRQ1   now we think to  replace it  with the  LM74810QDDRRQ1  is this possible?

For the Q1 mosfet we plan to place in the final  project 2 x   IXTH88N30P  and for Q2 1 x XTH240N15X4 placed on the internal side of the box for dissipation in case of dumps .

 Many times at the switching on of the U1 block with only 1 x IXTH88N30P  we dont have any voltage ,this with different  value of loads , 0,5 ,1 ,2 amps.

If you can send  your email adress I can send the complete schematic and the   Layout .

Regards  Alvise