* SPICE netlist
XU1 N012 N014 N016 N018 N011 N013 N015 N017 N020 N022 IN N023 0 N021 N019 N010 LTC2924 ;pnba IN1)IN2)IN3)IN4)OUT1)OUT2)OUT3)OUT4)_Fault)_Done)Vcc)PGT)GND)TMR)HYS/CFG)ON
C1 OUT4 0 10
R1 OUT4 0 16
C2 N021 0 150n
C3 N023 0 150n
R2 N019 0 49.9K
R3 IN N020 10K
V1 IN 0 PWL(0 0 20u 5 140m 5 144m 0 192m 5)
V3 N005 0 3.3
V4 N001 0 1
R4 IN N022 10K
R15 IN N010 52.3K
R19 0 N010 11.8K
R16 OUT1 N012 52.3K
R17 0 N012 11.8K
R18 OUT2 N014 45.3K
R20 0 N014 7.68K
R21 OUT3 N016 6.04K
R22 0 N016 1.69K
R5 OUT4 N018 1.62K
R6 0 N018 3.09K
C4 OUT3 0 10
R7 OUT3 0 8
C5 OUT2 0 10
R8 OUT2 0 8
C6 OUT1 0 10
R9 OUT1 0 8
V2 N007 0 5
R10 OUT4 N003 0.01
R11 OUT3 N006 0.01
R12 OUT2 N008 0.01
R13 OUT1 N009 0.01
S2 N002 N003 N004 0 Switch
V6 N004 0 PULSE(1 0 360m 1u 1u 1200m 1400m)
M1 IN N011 N009 N009 AO6408
M2 N007 N013 N008 N008 AO6408
M3 N005 N015 N006 N006 AO6408
M4 N001 N017 N002 N002 AO6408
.tran 500ms startup

* LTspice schematic (.asc)
Version 4
SHEET 1 2432 1360
WIRE -752 -664 -1216 -664
WIRE -272 -664 -656 -664
WIRE 80 -664 -192 -664
WIRE 1008 -664 160 -664
WIRE 1120 -664 1008 -664
WIRE 1216 -664 1120 -664
WIRE -1216 -648 -1216 -664
WIRE 1120 -648 1120 -664
WIRE 1216 -648 1216 -664
WIRE -160 -616 -208 -616
WIRE -16 -616 -80 -616
WIRE -256 -600 -256 -616
WIRE -1216 -552 -1216 -568
WIRE 1120 -552 1120 -584
WIRE 1216 -552 1216 -568
WIRE -656 -488 -1216 -488
WIRE 80 -488 -560 -488
WIRE 800 -488 160 -488
WIRE 1120 -488 800 -488
WIRE 1216 -488 1120 -488
WIRE -1216 -472 -1216 -488
WIRE 1120 -472 1120 -488
WIRE 1216 -472 1216 -488
WIRE -1216 -376 -1216 -392
WIRE 1120 -376 1120 -408
WIRE 1216 -376 1216 -392
WIRE -560 -312 -1216 -312
WIRE 80 -312 -464 -312
WIRE 560 -312 160 -312
WIRE 1120 -312 560 -312
WIRE 1216 -312 1120 -312
WIRE -1216 -296 -1216 -312
WIRE 1120 -296 1120 -312
WIRE 1216 -296 1216 -312
WIRE -1216 -200 -1216 -216
WIRE 1120 -200 1120 -232
WIRE 1216 -200 1216 -216
WIRE -448 -152 -1216 -152
WIRE -432 -152 -448 -152
WIRE 80 -152 -336 -152
WIRE 384 -152 160 -152
WIRE 1120 -152 384 -152
WIRE 1216 -152 1120 -152
WIRE -1216 -136 -1216 -152
WIRE 1120 -136 1120 -152
WIRE 1216 -136 1216 -152
WIRE -448 -72 -448 -152
WIRE -192 -72 -448 -72
WIRE 80 -72 -192 -72
WIRE 128 -72 80 -72
WIRE 128 -56 128 -72
WIRE -1216 -40 -1216 -56
WIRE 1120 -40 1120 -72
WIRE 1216 -40 1216 -56
WIRE -192 -8 -192 -72
WIRE 384 -8 384 -152
WIRE 128 40 128 24
WIRE 128 40 -48 40
WIRE 224 40 128 40
WIRE 336 40 304 40
WIRE 560 88 560 -312
WIRE -352 120 -352 -104
WIRE -336 120 -352 120
WIRE 384 120 384 72
WIRE 384 120 -48 120
WIRE 416 120 384 120
WIRE 512 120 496 120
WIRE 800 168 800 -488
WIRE -480 200 -480 -264
WIRE -336 200 -480 200
WIRE 560 200 560 168
WIRE 560 200 -48 200
WIRE 640 200 560 200
WIRE 752 200 720 200
WIRE 1008 248 1008 -664
WIRE -576 280 -576 -440
WIRE -336 280 -576 280
WIRE 800 280 800 248
WIRE 800 280 -48 280
WIRE 864 280 800 280
WIRE 960 280 944 280
WIRE -672 360 -672 -616
WIRE -336 360 -672 360
WIRE 1008 360 1008 328
WIRE 1008 360 -48 360
WIRE 1104 360 1008 360
WIRE 1200 360 1184 360
WIRE -432 440 -464 440
WIRE -336 440 -352 440
WIRE -16 440 -48 440
WIRE 80 440 80 -72
WIRE 80 440 64 440
WIRE -432 520 -464 520
WIRE -336 520 -368 520
WIRE -16 520 -48 520
WIRE 80 520 80 440
WIRE 80 520 64 520
WIRE -240 600 -240 584
WIRE -144 600 -144 584
WIRE -240 680 -240 664
FLAG -144 600 0
FLAG -464 520 0
FLAG -240 680 0
FLAG -464 440 0
FLAG -1216 -40 0
FLAG -1216 -552 0
FLAG 1120 -552 0
FLAG 1216 -552 0
FLAG 336 40 0
FLAG 512 120 0
FLAG 752 200 0
FLAG 960 280 0
FLAG 1200 360 0
FLAG 1120 -376 0
FLAG 1216 -376 0
FLAG 1120 -200 0
FLAG 1216 -200 0
FLAG 1120 -40 0
FLAG 1216 -40 0
FLAG -1216 -376 0
FLAG -1216 -200 0
FLAG 1216 -152 OUT1
FLAG 1216 -312 OUT2
FLAG 1216 -488 OUT3
FLAG 1216 -664 OUT4
FLAG -256 -600 0
FLAG -16 -616 0
FLAG -1216 -152 IN
SYMBOL LTC2924 -192 280 R0
SYMATTR InstName U1
SYMBOL cap 1104 -648 R0
SYMATTR InstName C1
SYMATTR Value 10
SYMBOL res 1200 -664 R0
SYMATTR InstName R1
SYMATTR Value 16
SYMBOL cap -368 504 R90
SYMATTR InstName C2
SYMATTR Value 150n
SYMBOL cap -256 600 R0
SYMATTR InstName C3
SYMATTR Value 150n
SYMBOL res -336 424 R90
SYMATTR InstName R2
SYMATTR Value 49.9K
SYMBOL res 80 424 R90
SYMATTR InstName R3
SYMATTR Value 10K
SYMBOL voltage -1216 -152 R0
SYMATTR Value PWL(0 0 20u 5 140m 5 144m 0 192m 5)
SYMATTR InstName V1
SYMBOL voltage -1216 -488 R0
SYMATTR InstName V3
SYMATTR Value 3.3
SYMBOL voltage -1216 -664 R0
SYMATTR InstName V4
SYMATTR Value 1
SYMBOL res 80 504 R90
SYMATTR InstName R4
SYMATTR Value 10K
SYMBOL res 112 -72 R0
SYMATTR InstName R15
SYMATTR Value 52.3K
SYMBOL res 320 24 R90
SYMATTR InstName R19
SYMATTR Value 11.8K
SYMBOL res 368 -24 R0
SYMATTR InstName R16
SYMATTR Value 52.3K
SYMBOL res 512 104 R90
SYMATTR InstName R17
SYMATTR Value 11.8K
SYMBOL res 544 72 R0
SYMATTR InstName R18
SYMATTR Value 45.3K
SYMBOL res 736 184 R90
SYMATTR InstName R20
SYMATTR Value 7.68K
SYMBOL res 784 152 R0
SYMATTR InstName R21
SYMATTR Value 6.04K
SYMBOL res 960 264 R90
SYMATTR InstName R22
SYMATTR Value 1.69K
SYMBOL res 992 232 R0
SYMATTR InstName R5
SYMATTR Value 1.62K
SYMBOL res 1200 344 R90
SYMATTR InstName R6
SYMATTR Value 3.09K
SYMBOL cap 1104 -472 R0
SYMATTR InstName C4
SYMATTR Value 10
SYMBOL res 1200 -488 R0
SYMATTR InstName R7
SYMATTR Value 8
SYMBOL cap 1104 -296 R0
SYMATTR InstName C5
SYMATTR Value 10
SYMBOL res 1200 -312 R0
SYMATTR InstName R8
SYMATTR Value 8
SYMBOL cap 1104 -136 R0
SYMATTR InstName C6
SYMATTR Value 10
SYMBOL res 1200 -152 R0
SYMATTR InstName R9
SYMATTR Value 8
SYMBOL voltage -1216 -312 R0
SYMATTR InstName V2
SYMATTR Value 5
SYMBOL res 176 -680 R90
SYMATTR InstName R10
SYMATTR Value 0.01
SYMBOL res 176 -504 R90
SYMATTR InstName R11
SYMATTR Value 0.01
SYMBOL res 176 -328 R90
SYMATTR InstName R12
SYMATTR Value 0.01
SYMBOL res 176 -168 R90
SYMATTR InstName R13
SYMATTR Value 0.01
SYMBOL sw -288 -664 R270
SYMATTR InstName S2
SYMATTR Value Switch
SYMBOL voltage -176 -616 R270
SYMATTR InstName V6
SYMATTR Value PULSE(1 0 360m 1u 1u 1200m 1400m)
SYMBOL nmos -432 -104 R270
SYMATTR InstName M1
SYMATTR Value AO6408
SYMBOL nmos -560 -264 R270
SYMATTR InstName M2
SYMATTR Value AO6408
SYMBOL nmos -656 -440 R270
SYMATTR InstName M3
SYMATTR Value AO6408
SYMBOL nmos -752 -616 R270
SYMATTR InstName M4
SYMATTR Value AO6408