Version 4
SHEET 1 1432 680
WIRE 64 -80 -144 -80
WIRE 848 -80 64 -80
WIRE -144 -64 -144 -80
WIRE 256 -32 256 -48
WIRE 64 16 64 -80
WIRE 96 16 64 16
WIRE 592 16 416 16
WIRE 720 16 672 16
WIRE -144 32 -144 16
WIRE 96 112 64 112
WIRE 480 112 416 112
WIRE 848 112 848 -80
WIRE 848 112 560 112
WIRE 96 208 64 208
WIRE 448 208 416 208
FLAG -144 32 0
FLAG 64 112 0
FLAG 720 16 0
FLAG -144 -80 IN
SYMBOL voltage -144 -80 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName Vbatt
SYMATTR Value 3.7
SYMBOL res 576 96 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 10K
SYMBOL voltage 576 16 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 -32 56 VBottom 2
SYMATTR InstName V2
SYMATTR Value PULSE(3.75 3.65 1s 10m 10m 1 2)
SYMBOL LTC2942-1 256 112 R0
SYMATTR InstName U1
SYMATTR Value B_Reg=60 CD_Reg=32767 EF_Reg=65535
TEXT 600 272 Left 2 !.tran 5