Path: ...!weretis.net!feeder9.news.weretis.net!usenet.blueworldhosting.com!diablo1.usenet.blueworldhosting.com!nnrp.usenet.blueworldhosting.com!.POSTED!not-for-mail From: "Edward Rawde" Newsgroups: sci.electronics.design Subject: Re: P-channel MOSFET model Date: Mon, 6 May 2024 01:58:15 -0400 Organization: BWH Usenet Archive (https://usenet.blueworldhosting.com) Lines: 210 Message-ID: References: Injection-Date: Mon, 6 May 2024 05:58:18 -0000 (UTC) Injection-Info: nnrp.usenet.blueworldhosting.com; logging-data="70064"; mail-complaints-to="usenet@blueworldhosting.com" Cancel-Lock: sha1:p6BZXVSt6dl/HlVkztKoI38Wl7w= sha256:iPs5+oFZnff4RV55VENrCjj5Tcm7dozU/r268f5xdJM= sha1:dUy1Z7CS01zPz11tBVHRHPLGiOM= sha256:7bnEnhOoD6rjn5u68T3svQfJh0SeHniP7agUoK7szA4= X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6157 X-Priority: 3 X-MSMail-Priority: Normal X-RFC2646: Format=Flowed; Original X-Newsreader: Microsoft Outlook Express 6.00.2900.5931 Bytes: 6923 "John Larkin" wrote in message news:aesf3j1po3glh1c23se3lofoni6j7ol75m@4ax.com... > On Sun, 5 May 2024 14:42:30 -0400, "Edward Rawde" > wrote: > >>"Edward Rawde" wrote in message >>news:v16s2i$2uv4$1@nnrp.usenet.blueworldhosting.com... >>> Does anyone know of a P-channel MOSFET, roughly equivalent to >>> XP233P1501TR-G which has a model I can use in LTSpice? >>> XP202A0003PR-G would be useful too. >> >>Infineon BSS215P might be more suitable for the FET. >>That does have a simulation model. >>http://www.infineon.com/dgdl/Infineon-SimulationModel_OptiMOS_PowerMOSFET_PSpice_20V_P-Channel-SM-v01_00-EN.zip?fileId=db3a30433d346a2d013d493ff9d160ab >>I'll have to look into how compatible the model is with LTspice. >> >>Microchip TC105 is also interesting but a bit pricey. >>However it does lead to CD54NP as a possible choice for the inductor. >>MA737 doesn't seem to be easily available but a suitable shottky diode >>shouldn't be hard to find. >> >>Vishay SI2371EDS-T1-GE3 looks interesting too. >>Not too pricey for lower on resistance. >> >>> >>> >> > > Some of the TI TPS5- series buck switchers are 19 cents. > > Your circuit looks like a good way to blow up transistors. > Here's 12V to 5V 1A using the concept I had in mind of using a comparator capacitively coupled to a FET. Also using only components I could find in a fresh install of LTSpice. If it doesn't work, fix the character encoding issue in the value of some components. Don't worry it won't be going into production any time soon. Comments/laugter is welcome. Version 4 SHEET 1 1956 680 WIRE 1104 -80 368 -80 WIRE 368 -16 368 -80 WIRE 368 -16 304 -16 WIRE 432 -16 368 -16 WIRE 544 -16 432 -16 WIRE 672 -16 544 -16 WIRE 848 -16 768 -16 WIRE 928 -16 848 -16 WIRE 1232 -16 1008 -16 WIRE 1376 -16 1232 -16 WIRE 1520 -16 1376 -16 WIRE 1632 -16 1520 -16 WIRE 304 32 304 -16 WIRE 1104 32 1104 -80 WIRE 1232 32 1232 -16 WIRE 544 64 544 -16 WIRE 432 80 432 -16 WIRE 1376 96 1376 -16 WIRE 1376 96 1360 96 WIRE 848 112 848 -16 WIRE 1632 112 1632 -16 WIRE 1360 128 1360 96 WIRE 1376 128 1376 96 WIRE 1520 128 1520 -16 WIRE 1104 144 1104 112 WIRE 1328 144 1104 144 WIRE 1456 160 1392 160 WIRE 304 176 304 112 WIRE 544 176 544 144 WIRE 592 176 544 176 WIRE 688 176 688 32 WIRE 688 176 656 176 WIRE 1232 176 1232 112 WIRE 1328 176 1232 176 WIRE 1104 192 1104 144 WIRE 1232 192 1232 176 WIRE 544 208 544 176 WIRE 688 224 688 176 WIRE 304 336 304 256 WIRE 432 336 432 144 WIRE 432 336 304 336 WIRE 544 336 544 288 WIRE 544 336 432 336 WIRE 848 336 848 176 WIRE 848 336 544 336 WIRE 1104 336 1104 272 WIRE 1104 336 848 336 WIRE 1232 336 1232 272 WIRE 1232 336 1104 336 WIRE 1344 336 1344 192 WIRE 1344 336 1232 336 WIRE 1360 336 1360 192 WIRE 1360 336 1344 336 WIRE 1376 336 1376 192 WIRE 1376 336 1360 336 WIRE 1520 336 1520 192 WIRE 1520 336 1376 336 WIRE 1632 336 1632 192 WIRE 1632 336 1520 336 WIRE 304 352 304 336 WIRE 688 400 688 288 WIRE 1456 400 1456 160 WIRE 1456 400 688 400 FLAG 304 352 0 SYMBOL Comparators\\LT1719 1360 96 R0 WINDOW 0 37 82 Left 2 WINDOW 3 26 27 Left 2 SYMATTR InstName U1 SYMBOL res 1088 16 R0 WINDOW 0 -36 27 Left 2 WINDOW 3 -71 76 Left 2 SYMATTR InstName R1 SYMATTR Value 47.5K SYMATTR SpiceLine tol=1 pwr=0.1 SYMBOL res 1088 176 R0 WINDOW 0 -43 30 Left 2 WINDOW 3 -59 64 Left 2 SYMATTR InstName R2 SYMATTR Value 10K SYMATTR SpiceLine tol=1 pwr=0.1 SYMBOL ind 1024 -32 R90 WINDOW 0 66 46 VBottom 2 WINDOW 3 -27 53 VTop 2 SYMATTR InstName L1 SYMATTR Value 47µ SYMATTR SpiceLine Ipk=1.1 Rser=0.17 Rpar=0 Cpar=0 mfg="Sumida" pn="CD104-470" SYMBOL res 1616 96 R0 SYMATTR InstName R4 SYMATTR Value 5.1 SYMATTR SpiceLine tol=1 pwr=0.1 SYMBOL res 1216 16 R0 WINDOW 0 -40 27 Left 2 WINDOW 3 -50 74 Left 2 SYMATTR InstName R3 SYMATTR Value 14K SYMATTR SpiceLine tol=1 pwr=0.1 SYMBOL res 1216 176 R0 WINDOW 0 -42 26 Left 2 WINDOW 3 -51 67 Left 2 SYMATTR InstName R5 SYMATTR Value 10K SYMATTR SpiceLine tol=1 pwr=0.1 SYMBOL polcap 1504 128 R0 WINDOW 3 24 56 Left 2 SYMATTR Value 100µ SYMATTR InstName C1 SYMATTR Description Capacitor SYMATTR Type cap SYMATTR SpiceLine V=6.3 Irms=0 Rser=0.9 Lser=0 mfg="AVX" pn="TAJD107M006" type="Tantalum" SYMBOL schottky 864 176 R180 WINDOW 0 24 64 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D2 SYMATTR Value DFLS220L SYMATTR Description Diode SYMATTR Type diode SYMBOL pmos 768 32 M270 WINDOW 0 -18 59 VLeft 2 WINDOW 3 78 89 VLeft 2 SYMATTR InstName M1 SYMATTR Value AO6407 SYMBOL voltage 304 160 R0 WINDOW 0 11 100 Left 2 WINDOW 3 38 54 Left 2 WINDOW 123 0 0 Left 0 WINDOW 39 -185 81 Left 2 SYMATTR InstName V3 SYMATTR Value 12 SYMBOL res 528 48 R0 SYMATTR InstName R6 SYMATTR Value 1K SYMATTR SpiceLine tol=1 pwr=0.1 ========== REMAINDER OF ARTICLE TRUNCATED ==========