Version 4
SHEET 1 2740 680
WIRE 944 -432 704 -432
WIRE 1104 -432 944 -432
WIRE 1232 -432 1104 -432
WIRE 1424 -432 1232 -432
WIRE 1728 -432 1424 -432
WIRE 1920 -432 1728 -432
WIRE 704 -416 704 -432
WIRE 944 -416 944 -432
WIRE 1104 -416 1104 -432
WIRE 1728 -416 1728 -432
WIRE 1920 -416 1920 -432
WIRE 1424 -384 1424 -432
WIRE 704 -320 704 -336
WIRE 1232 -320 1232 -432
WIRE 1280 -320 1232 -320
WIRE 1616 -320 1568 -320
WIRE 1728 -320 1728 -336
WIRE 1728 -320 1680 -320
WIRE 1104 -224 1104 -336
WIRE 1168 -224 1104 -224
WIRE 1280 -224 1232 -224
WIRE 1728 -224 1568 -224
WIRE 1920 -224 1920 -336
WIRE 1920 -224 1792 -224
WIRE 944 -128 944 -336
WIRE 1280 -128 944 -128
WIRE 1760 -128 1568 -128
WIRE 1888 -128 1760 -128
WIRE 1760 -96 1760 -128
WIRE 1888 -96 1888 -128
WIRE 2080 -80 1936 -80
WIRE 2176 -80 2160 -80
WIRE 1584 -32 1568 -32
WIRE 1680 -32 1664 -32
WIRE 1760 0 1760 -32
WIRE 1888 16 1888 -16
WIRE 944 32 944 -128
WIRE 1424 48 1424 32
WIRE 768 96 768 64
WIRE 944 128 944 112
WIRE 768 192 768 176
FLAG 704 -320 0
FLAG 1424 48 0
FLAG 1760 0 0
FLAG 1680 -32 0
FLAG 768 192 0
FLAG 768 64 temp
FLAG 944 128 0
FLAG 1888 16 0
FLAG 1936 -32 0
FLAG 2176 -80 0
SYMBOL voltage 704 -432 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 1744 -96 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 1088 -432 R0
SYMATTR InstName R5
SYMATTR Value 1K
SYMBOL res 1712 -432 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 1904 -432 R0
SYMATTR InstName R3
SYMATTR Value 1K
SYMBOL res 928 -432 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 768 80 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value PWL(0 25 5 45 6 65 7 45)
SYMBOL sw 1888 0 R180
WINDOW 0 -12 104 Right 2
WINDOW 3 -15 5 Right 2
SYMATTR InstName S1
SYMATTR Value SLOAD
SYMBOL voltage 2064 -80 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 24 0 +100n 1)
SYMBOL LED 1792 -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 PowerProducts\\LTC1733 1424 -176 R0
SYMATTR InstName U1
SYMATTR Value TimeOut=22
TEXT 2016 176 Left 2 !.tran 30
TEXT 1648 104 Left 2 !.model SLOAD SW(Ron=100 Roff=1G Vt=.5 Vh=-.3)
TEXT 1168 200 Left 2 ;Current Limit to Control Die Temperature NOT MODELED