Version 4 SHEET 1 1516 1040 WIRE -1360 224 -1360 208 WIRE -1360 336 -1360 304 WIRE -1760 416 -2016 416 WIRE -2016 432 -2016 416 WIRE -896 448 -960 448 WIRE -2016 528 -2016 512 WIRE -688 544 -752 544 WIRE -576 544 -624 544 WIRE -416 544 -576 544 WIRE 128 544 -416 544 WIRE 224 544 128 544 WIRE 336 544 224 544 WIRE 464 544 336 544 WIRE 624 544 464 544 WIRE -896 576 -960 576 WIRE -752 576 -752 544 WIRE -416 576 -416 544 WIRE 224 576 224 544 WIRE -256 608 -288 608 WIRE 128 608 128 544 WIRE 128 608 96 608 WIRE 336 656 336 544 WIRE -576 688 -576 544 WIRE -416 688 -416 656 WIRE -256 688 -416 688 WIRE 224 688 224 656 WIRE 224 688 96 688 WIRE 464 688 464 544 WIRE 624 688 624 544 WIRE -256 768 -416 768 WIRE 336 768 336 736 WIRE 336 768 96 768 WIRE -1600 800 -1600 736 WIRE -1472 800 -1472 736 WIRE -416 800 -416 768 WIRE -1728 832 -1728 816 WIRE -288 848 -288 608 WIRE -256 848 -288 848 WIRE 128 848 96 848 WIRE -1136 880 -1136 736 WIRE -1728 928 -1728 912 WIRE -1360 928 -1360 736 WIRE -1360 928 -1728 928 WIRE -1344 928 -1360 928 WIRE -1248 928 -1248 736 WIRE -1248 928 -1264 928 WIRE -1152 928 -1248 928 WIRE -1024 928 -1024 736 WIRE -1024 928 -1056 928 WIRE -688 928 -1024 928 WIRE -576 928 -576 752 WIRE -576 928 -624 928 WIRE -416 928 -416 880 WIRE -416 928 -576 928 WIRE -288 928 -288 848 WIRE -288 928 -416 928 WIRE -256 928 -288 928 WIRE 128 928 128 848 WIRE 128 928 96 928 WIRE 464 928 464 752 WIRE 464 928 128 928 WIRE 624 928 624 768 WIRE 624 928 464 928 FLAG -752 576 0 FLAG -1600 800 0 FLAG -1472 800 0 FLAG -2016 528 0 FLAG -1360 208 0 FLAG -896 448 Status FLAG -896 576 Class FLAG -1728 816 0 SYMBOL res -432 784 R0 SYMATTR InstName Rclass SYMATTR Value 30.9 SYMBOL res 208 560 R0 SYMATTR InstName R2 SYMATTR Value 100K SYMBOL res 320 640 R0 SYMATTR InstName R3 SYMATTR Value 100K SYMBOL res -432 560 R0 SYMATTR InstName R1 SYMATTR Value 100K SYMBOL cap 448 688 R0 WINDOW 39 24 84 Left 2 SYMATTR SpiceLine Rser=10m SYMATTR InstName Cload SYMATTR Value 100µ SYMBOL cap -592 688 R0 WINDOW 39 24 84 Left 2 SYMATTR SpiceLine Rser=10m SYMATTR InstName C1 SYMATTR Value .22µ SYMBOL diode -688 528 M90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName D1 SYMATTR Value MURS120 SYMBOL diode -624 944 M270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName D2 SYMATTR Value MURS120 SYMBOL res 608 672 R0 SYMATTR InstName Rload SYMATTR Value 1.3K SYMBOL LTC4265 -80 768 R0 WINDOW 0 0 -63 Center 2 WINDOW 3 0 78 Center 2 SYMATTR InstName U1 SYMBOL LTC4274 -1360 512 R0 SYMATTR InstName U2 SYMBOL voltage -2016 416 R0 SYMATTR InstName V1 SYMATTR Value 3.3 SYMBOL voltage -1360 320 M180 WINDOW 0 24 96 Left 2 WINDOW 3 24 16 Left 2 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V2 SYMATTR Value PWL(0 0 100u 3.3) SYMBOL nmos -1056 880 R90 WINDOW 0 2 46 VBottom 2 WINDOW 3 57 47 VTop 2 SYMATTR InstName M1 SYMATTR Value BSH114 SYMBOL res -1248 912 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R4 SYMATTR Value .25 SYMBOL voltage -1728 816 R0 SYMATTR InstName V3 SYMATTR Value 56 TEXT 264 1024 Left 2 !.tran 1 TEXT -584 864 Right 2 ;Diode Bridge TEXT -416 944 Top 2 ;Set for Class 4 Load TEXT -648 192 Left 2 ;Status Pin Voltage Result (see datasheet Table 3) \n \n0 Detect Status unknown \n1 Detect Good \n2 Rsig too Low \n3 Rsig too High \n4 Cpd too High \n5 Short Circuit \n6 Open Circuit TEXT -640 104 Left 2 ;>Status and >Class are not pins of the LTC4274,\nthey substitute for I2C interface