Path: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: piglet Newsgroups: sci.electronics.design Subject: Re: P-channel MOSFET model Date: Wed, 8 May 2024 13:03:00 +0100 Organization: A Patent noisesome spinner Lines: 323 Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Date: Wed, 08 May 2024 14:03:01 +0200 (CEST) Injection-Info: dont-email.me; posting-host="b274d20a2fc0797642ffd48af52aaabb"; logging-data="4152554"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX18zGZkR/XrSC5jlwb5pD7Og" User-Agent: Mozilla Thunderbird Cancel-Lock: sha1:286a3+n3bbQZKeTt++wecooJ7E0= Content-Language: en-US In-Reply-To: Bytes: 10084 On 06/05/2024 06:58, Edward Rawde wrote: > "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 ========== REMAINDER OF ARTICLE TRUNCATED ==========