Version 4
SHEET 1 2740 680
WIRE 944 -496 672 -496
WIRE 1072 -496 944 -496
WIRE 1424 -496 1072 -496
WIRE 1712 -496 1424 -496
WIRE 1824 -496 1712 -496
WIRE 672 -480 672 -496
WIRE 1712 -480 1712 -496
WIRE 1824 -480 1824 -496
WIRE 944 -464 944 -496
WIRE 1072 -464 1072 -496
WIRE 672 -384 672 -400
WIRE 1424 -384 1424 -496
WIRE 1280 -320 608 -320
WIRE 1616 -320 1568 -320
WIRE 1712 -320 1712 -400
WIRE 1712 -320 1680 -320
WIRE 608 -304 608 -320
WIRE 1072 -224 1072 -384
WIRE 1168 -224 1072 -224
WIRE 1280 -224 1232 -224
WIRE 1744 -224 1568 -224
WIRE 1824 -224 1824 -400
WIRE 1824 -224 1808 -224
WIRE 608 -208 608 -224
WIRE 944 -128 944 -384
WIRE 1280 -128 944 -128
WIRE 1744 -128 1568 -128
WIRE 1904 -128 1744 -128
WIRE 1744 -112 1744 -128
WIRE 1904 -112 1904 -128
WIRE 2128 -96 1952 -96
WIRE 2224 -96 2208 -96
WIRE 1584 -32 1568 -32
WIRE 1680 -32 1664 -32
WIRE 1744 -16 1744 -48
WIRE 1904 -16 1904 -32
WIRE 944 32 944 -128
WIRE 1424 48 1424 32
WIRE 832 96 832 64
WIRE 944 128 944 112
WIRE 832 192 832 176
FLAG 672 -384 0
FLAG 1424 48 0
FLAG 1744 -16 0
FLAG 1680 -32 0
FLAG 832 192 0
FLAG 832 64 temp
FLAG 944 128 0
FLAG 1904 -16 0
FLAG 1952 -48 0
FLAG 2224 -96 0
FLAG 608 -208 0
SYMBOL voltage 672 -496 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value PWL(0 0 1m 5)
SYMBOL cap 1728 -112 R0
SYMATTR InstName CBAT
SYMATTR Value 200m
SYMBOL res 1568 -16 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R1
SYMATTR Value 1.5K
SYMBOL res 1056 -480 R0
SYMATTR InstName R5
SYMATTR Value 1K
SYMBOL res 1696 -496 R0
SYMATTR InstName R2
SYMATTR Value 1K
SYMBOL LED 1680 -336 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 72 32 VTop 2
SYMATTR InstName D1
SYMATTR Value NSPW500BS
SYMBOL res 1808 -496 R0
SYMATTR InstName R3
SYMATTR Value 1K
SYMBOL res 928 -480 R0
SYMATTR InstName R4
SYMATTR Value 4K
SYMBOL res 928 16 R0
SYMATTR InstName RTHERMISTOR
SYMATTR Value R=9.1K*EXP(3490/(V(temp)+273) - 3490/300)
SYMBOL voltage 832 80 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value PWL(0 25 10 45 11 65 12 45)
SYMBOL sw 1904 -16 R180
WINDOW 0 -18 102 Right 2
WINDOW 3 -31 2 Right 2
SYMATTR InstName S1
SYMATTR Value SLOAD
SYMBOL voltage 2112 -96 R270
WINDOW 123 -74 56 VBottom 2
WINDOW 39 -53 56 VBottom 2
WINDOW 0 32 56 VTop 2
WINDOW 3 -32 56 VBottom 2
SYMATTR InstName V2
SYMATTR Value PWL(0 0 29 0 +100n 1)
SYMBOL LED 1808 -240 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 72 32 VTop 2
SYMATTR InstName D2
SYMATTR Value NSPW500BS
SYMBOL LED 1168 -208 R270
WINDOW 0 72 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D3
SYMATTR Value NSPW500BS
SYMBOL voltage 608 -320 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V4
SYMATTR Value PWL(0 0 5 0 +100n 5)
SYMBOL PowerProducts\\LTC4053-4.2 1424 -176 R0
SYMATTR InstName U1
SYMATTR Value TimeOut=22
TEXT 1704 104 Left 2 !.tran 30\n.model SLOAD SW(Ron=100 Roff=1G Vt=.5 Vh=-.3)
TEXT 1024 232 Left 2 ;Current Limit to Control Die Temperature NOT MODELED