Version 4
SHEET 1 1712 680
WIRE -336 -144 -416 -144
WIRE 480 -144 -336 -144
WIRE 624 -144 480 -144
WIRE -336 -128 -336 -144
WIRE 480 -64 480 -144
WIRE -336 -32 -336 -48
WIRE -144 -16 -256 -16
WIRE 48 -16 -144 -16
WIRE 400 -16 48 -16
WIRE -256 0 -256 -16
WIRE -144 16 -144 -16
WIRE -416 32 -416 -144
WIRE 624 32 624 -144
WIRE 48 48 48 -16
WIRE 80 48 48 48
WIRE 480 48 480 16
WIRE 480 48 368 48
WIRE -256 96 -256 80
WIRE -144 128 -144 96
WIRE 80 128 -144 128
WIRE 480 128 480 48
WIRE 480 128 368 128
WIRE -144 144 -144 128
WIRE 80 208 -16 208
WIRE 400 208 400 -16
WIRE 400 208 368 208
WIRE 1104 208 400 208
WIRE 1216 208 1184 208
WIRE -16 224 -16 208
WIRE -144 240 -144 224
WIRE 80 288 -16 288
WIRE 400 288 368 288
WIRE -416 368 -416 112
WIRE 80 368 -416 368
WIRE 624 368 624 112
WIRE 624 368 368 368
FLAG 400 288 0
FLAG -336 -32 0
FLAG -144 240 0
FLAG -256 96 0
FLAG 1216 208 0
SYMBOL LTC4150 224 208 R0
SYMATTR InstName U1
SYMBOL res 608 16 R0
SYMATTR InstName R1
SYMATTR Value 10K
SYMBOL res 464 -80 R0
SYMATTR InstName R2
SYMATTR Value 10K
SYMBOL res -432 16 R0
SYMATTR InstName R3
SYMATTR Value 10K
SYMBOL voltage -336 -144 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 3.3
SYMBOL voltage -144 128 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName Vbatt
SYMATTR Value 3.7
SYMBOL res -160 0 R0
SYMATTR InstName Rsense
SYMATTR Value 100m
SYMBOL res -272 -16 R0
SYMATTR InstName Rload
SYMATTR Value 10
SYMBOL cap -32 224 R0
WINDOW 3 34 42 Left 2
WINDOW 0 28 9 Left 2
SYMATTR Value 4.7µ
SYMATTR InstName C1
SYMBOL current 1184 208 R90
WINDOW 0 -32 40 VBottom 2
WINDOW 3 32 40 VTop 2
WINDOW 123 74 40 VTop 2
WINDOW 39 53 40 VTop 2
SYMATTR InstName I2
SYMATTR Value PWL(0 0 0.35 0 +1u 0.8 0.7 0.8 +1u 0 +200m 0 +1u 0.45 +400m 0.45 +300m 0.8)
TEXT 512 424 Left 2 !.tran 2.2