Version 4 SHEET 1 2052 680 WIRE -336 -64 -480 -64 WIRE -128 -64 -336 -64 WIRE 368 -64 -128 -64 WIRE 496 -64 368 -64 WIRE 640 -64 496 -64 WIRE 800 -64 736 -64 WIRE 848 -64 800 -64 WIRE 992 -64 928 -64 WIRE 1104 -64 992 -64 WIRE 1264 -64 1104 -64 WIRE 1424 -64 1264 -64 WIRE 1440 -64 1424 -64 WIRE 1568 -64 1536 -64 WIRE 1600 -64 1568 -64 WIRE 1760 -64 1696 -64 WIRE 1872 -64 1760 -64 WIRE 1984 -64 1872 -64 WIRE 416 -32 -48 -32 WIRE 576 -16 32 -16 WIRE 656 -16 576 -16 WIRE 1568 -16 1568 -64 WIRE -480 0 -480 -64 WIRE -336 0 -336 -64 WIRE -48 0 -48 -32 WIRE 496 0 496 -64 WIRE 992 0 992 -64 WIRE 1104 0 1104 -64 WIRE 1264 0 1264 -64 WIRE 1424 0 1424 -64 WIRE 1760 0 1760 -64 WIRE 1872 0 1872 -64 WIRE 32 16 32 -16 WIRE 1344 16 1312 16 WIRE 1520 16 1520 -16 WIRE 1520 16 1472 16 WIRE 112 64 80 64 WIRE 368 64 368 -64 WIRE 368 64 336 64 WIRE 80 80 80 64 WIRE 496 96 496 80 WIRE 576 96 496 96 WIRE 1520 96 1520 16 WIRE 1568 96 1568 64 WIRE 1568 96 1520 96 WIRE 1616 96 1616 -16 WIRE 1616 96 1568 96 WIRE 1680 96 1616 96 WIRE 1984 96 1984 -64 WIRE 496 112 496 96 WIRE 800 112 800 -64 WIRE -48 128 -48 80 WIRE 112 128 -48 128 WIRE 1344 128 1344 16 WIRE 1424 128 1424 96 WIRE 1424 128 1344 128 WIRE 1264 144 1264 96 WIRE 1104 160 1104 80 WIRE 1104 160 896 160 WIRE -480 176 -480 80 WIRE -48 176 -48 128 WIRE 32 192 32 96 WIRE 112 192 32 192 WIRE 416 192 416 -32 WIRE 416 192 336 192 WIRE 496 192 416 192 WIRE 1472 192 864 192 WIRE 1584 192 1552 192 WIRE 1680 192 1680 96 WIRE 864 224 864 192 WIRE 864 224 528 224 WIRE 1104 224 1104 160 WIRE 1264 224 1264 144 WIRE 1424 224 1424 128 WIRE 1584 224 1584 192 WIRE 1648 224 1584 224 WIRE 1872 224 1872 64 WIRE 112 256 32 256 WIRE 384 256 336 256 WIRE 448 256 384 256 WIRE 528 256 528 224 WIRE 528 256 448 256 WIRE 1584 256 1584 224 WIRE 384 272 384 256 WIRE 576 272 576 96 WIRE -128 304 -128 -64 WIRE 32 304 32 256 WIRE 32 304 -128 304 WIRE 448 304 448 256 WIRE 448 304 416 304 WIRE 896 304 896 160 WIRE 896 304 608 304 WIRE -480 368 -480 256 WIRE -336 368 -336 64 WIRE -48 368 -48 256 WIRE 384 368 384 336 WIRE 576 368 576 336 WIRE 800 368 800 176 WIRE 992 368 992 64 WIRE 1104 368 1104 304 WIRE 1264 368 1264 304 WIRE 1424 368 1424 304 WIRE 1584 368 1584 336 WIRE 1680 368 1680 256 WIRE 1760 368 1760 64 WIRE 1872 368 1872 304 WIRE 1984 368 1984 176 FLAG 80 80 0 FLAG -480 368 0 FLAG 384 368 0 FLAG 800 368 0 FLAG -48 368 0 FLAG 992 368 0 FLAG 1680 368 0 FLAG -336 368 0 FLAG 368 -64 VIN FLAG 992 -64 VOUT FLAG 576 -16 GATE FLAG -48 128 TRIG FLAG 416 192 THRS FLAG 384 256 CV FLAG 1104 368 0 FLAG 576 368 0 FLAG 1104 160 VFB FLAG 1584 368 0 FLAG 1872 368 0 FLAG 1760 368 0 FLAG 1984 368 0 FLAG 1872 -64 VBAT FLAG 1264 368 0 FLAG 1424 368 0 FLAG 1264 144 VHEAT SYMBOL Misc\\NE555 224 160 R0 SYMATTR InstName U1 SYMBOL voltage -480 160 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V1 SYMATTR Value 12V SYMBOL pmos 736 -16 M270 SYMATTR InstName M1 SYMATTR Value AO6407 SYMBOL ind 832 -48 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L1 SYMATTR Value 10µH SYMBOL schottky 816 176 R180 WINDOW 0 24 64 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D1 SYMATTR Value SS24 SYMATTR Description Diode SYMATTR Type diode SYMBOL res -64 -16 R0 SYMATTR InstName R1 SYMATTR Value 2.2K SYMBOL res -64 160 R0 SYMATTR InstName R2 SYMATTR Value 2.4K SYMBOL res 480 -16 R0 SYMATTR InstName R3 SYMATTR Value 1.8K SYMBOL res -496 -16 R0 SYMATTR InstName R5 SYMATTR Value 100 SYMBOL cap -352 0 R0 SYMATTR InstName C1 SYMATTR Value 44µF SYMBOL cap 976 0 R0 SYMATTR InstName C2 SYMATTR Value 44µF SYMBOL res 16 0 R0 SYMATTR InstName R4 SYMATTR Value 33 SYMBOL res 1088 -16 R0 SYMATTR InstName R7 SYMATTR Value 1.2Meg SYMBOL res 1088 208 R0 SYMATTR InstName R8 SYMATTR Value 2.7Meg SYMBOL TL431 384 304 R0 SYMATTR InstName U2 SYMBOL TL431 576 304 R0 SYMATTR InstName U3 SYMBOL voltage 1872 208 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V2 SYMATTR Value 2.0V SYMBOL res 480 96 R0 SYMATTR InstName R9 SYMATTR Value 2.2K SYMBOL pmos 1440 -16 R270 SYMATTR InstName M2 SYMATTR Value AO6407 SYMBOL AZ432 1680 224 M0 SYMATTR InstName U4 SYMBOL res 1552 -32 R0 SYMATTR InstName R6 SYMATTR Value 27K SYMBOL res 1568 240 R0 SYMATTR InstName R10 SYMATTR Value 27K SYMBOL res 1568 176 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R11 SYMATTR Value 26.8K SYMBOL cap 1744 0 R0 SYMATTR InstName C3 SYMATTR Value 22µF SYMBOL cap 1856 0 R0 SYMATTR InstName C4 SYMATTR Value 330µF SYMBOL res 1968 80 R0 SYMATTR InstName R12 SYMATTR Value 500 SYMBOL pmos 1696 -16 M270 SYMATTR InstName M3 SYMATTR Value AO6407 SYMBOL res 1248 208 R0 SYMATTR InstName R13 SYMATTR Value 24 SYMBOL res 1408 208 R0 SYMATTR InstName R15 SYMATTR Value 1.2Meg SYMBOL pmos 1472 96 R180 SYMATTR InstName M5 SYMATTR Value AO6407 SYMBOL pmos 1312 96 R180 SYMATTR InstName M4 SYMATTR Value AO6407 TEXT -504 424 Left 2 !.tran 200ms startup