Version 4
SHEET 1 1432 680
WIRE 64 -96 -48 -96
WIRE 832 -96 64 -96
WIRE -48 -80 -48 -96
WIRE 832 -48 832 -96
WIRE -48 16 -48 0
WIRE 64 16 64 -96
WIRE 96 16 64 16
WIRE 576 16 416 16
WIRE 720 16 656 16
WIRE 96 112 80 112
WIRE 832 112 832 32
WIRE 832 112 416 112
WIRE 96 208 80 208
WIRE 432 208 416 208
FLAG -48 16 0
FLAG 80 112 0
FLAG 720 16 0
SYMBOL voltage -48 -96 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName Vbatt
SYMATTR Value 3.7
SYMBOL res 816 -64 R0
SYMATTR InstName R1
SYMATTR Value 10K
SYMBOL voltage 560 16 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 -32 56 VBottom 2
SYMATTR InstName V2
SYMATTR Value PULSE(3.9 3.5 1s 10m 10m 1 2)
SYMBOL LTC2941-1 256 112 R0
SYMATTR InstName U1
SYMATTR Value B_Reg=60 CD_Reg=32767
TEXT 600 272 Left 2 !.tran 5