* Z:\home\khalils\Downloads\files\data\raw_asc\MAX20444B.asc
* Generated by LTspice 26.0.1 for Windows.
V1 IN 0 6
L1 N001 N002 4.7 Rser=19.5m
M1 N001 N003 IN IN SQ4401EY
R1 N011 N010 3.74K
R2 N011 0 40m
M2 N002 N005 N011 N011 AON6266E
R3 N005 N004 10
D1 N002 OUT MBRS360
C2 OUT 0 4.7 m=3
C3 OUT 0 1
R4 OUT N018 226K
R5 N018 0 15K
R6 N031 0 76.8K
R7 N039 N042 8.06K
C4 N042 0 68n
C5 N039 0 2.2n
C6 0 N031 100p
C7 N016 0 1
R8 N037 0 84.5K
R9 N041 0 45.3K
D2 OUT N006 LXHL-BW02
D3 N006 N012 LXHL-BW02
D4 N012 N019 LXHL-BW02
D5 N019 N023 LXHL-BW02
D6 N023 N027 LXHL-BW02
D7 N027 N034 LXHL-BW02
D8 OUT N007 LXHL-BW02
D9 N007 N013 LXHL-BW02
D10 N013 N020 LXHL-BW02
D11 N020 N024 LXHL-BW02
D12 N024 N028 LXHL-BW02
D13 N028 N036 LXHL-BW02
D14 OUT N008 LXHL-BW02
D15 N008 N014 LXHL-BW02
D16 N014 N021 LXHL-BW02
D17 N021 N025 LXHL-BW02
D18 N025 N029 LXHL-BW02
D19 N029 N038 LXHL-BW02
D20 OUT N009 LXHL-BW02
D21 N009 N015 LXHL-BW02
D22 N015 N022 LXHL-BW02
D23 N022 N026 LXHL-BW02
D24 N026 N030 LXHL-BW02
D25 N030 N040 LXHL-BW02
C1 OUT 0 47
R10 N033 0 59K
V2 N035 0 PULSE(0 3.3 0 10n 10n 0.3m 0.5m)
R11 N017 N016 100K
R12 N016 N032 100K
R13 N032 0 20K
XU2 IN N003 N034 N038 N033 N017 N016 0 0 N031 0 N041 N035 N032 N040 N036 N037 N039 N010 N018 0 N004 N016 IN MAX20444B DIM_EXT=1 HDIM=1 SIM_SPEED_MULT=2 ENABLED_CH=4 ;pnba IN)PGATE)OUT1)OUT3)HDSET)FLTB)SCL/IRANGE)SDA/PSEN)LEDGND)RT)GND)IREF)DIM)I2CDIS/RSDT)OUT4)OUT2)FSEN/ISET)COMP)CS)BSTMON)PGND)NDRV)Vcc)EN
.model D D
.lib C:\users\khalils\AppData\Local\LTspice\lib\cmp\standard.dio
.model NMOS NMOS
.model PMOS PMOS
.lib C:\users\khalils\AppData\Local\LTspice\lib\cmp\standard.mos
.tran 45m startup
* Variable definition\n \nDIM_EXT = 1 if external dimming, 0 if I2C.\n Note:Internal Dimming is not modeled.\nHDIM = 1 if Hybrid dimming is enabled, 0 if disabled\nSIM_SPEED_MULT multiplier to speed up the start-up routine.\n Reccomended value ranges from 1 to 10 though can be increased indefinitely,\n However model performance is not guaranteed.\nENABLED_CH= write1 to 4\n 1 to enable channel 1\n 2 to enable both channels 1 and 2\n 3 to enable channels 1, 2 and 3\n 4 to enable all channels\n Note: When disabling unused strings, it is necessary to start by disabling the \n highest numbered current sinks first.
* Library below included based on ModelFile attribute of instance XU2 (C:\users\khalils\AppData\Local\LTspice\lib\sym\PowerProducts\MAX20444B.asy)
.lib MAX20444B.sub
.backanno
.end

* LTspice schematic (.asc):
Version 4
SHEET 1 2580 968
WIRE -256 -736 -320 -736
WIRE -176 -736 -256 -736
WIRE -80 -736 -176 -736
WIRE 208 -736 16 -736
WIRE 656 -736 288 -736
WIRE 704 -736 656 -736
WIRE 832 -736 768 -736
WIRE 896 -736 832 -736
WIRE 976 -736 896 -736
WIRE 1056 -736 976 -736
WIRE 1200 -736 1056 -736
WIRE 1360 -736 1200 -736
WIRE 1520 -736 1360 -736
WIRE 1568 -736 1520 -736
WIRE 1680 -736 1568 -736
WIRE -320 -704 -320 -736
WIRE 832 -704 832 -736
WIRE 896 -704 896 -736
WIRE 976 -704 976 -736
WIRE 656 -640 656 -736
WIRE -320 -608 -320 -624
WIRE 832 -608 832 -640
WIRE 896 -608 896 -640
WIRE 976 -608 976 -640
WIRE 1200 -608 1200 -736
WIRE 1360 -608 1360 -736
WIRE 1520 -608 1520 -736
WIRE 1680 -608 1680 -736
WIRE -64 -560 -64 -688
WIRE 64 -560 -64 -560
WIRE 512 -560 480 -560
WIRE 608 -560 592 -560
WIRE 1200 -496 1200 -544
WIRE 1360 -496 1360 -544
WIRE 1520 -496 1520 -544
WIRE 1680 -496 1680 -544
WIRE -176 -464 -176 -736
WIRE 64 -464 -176 -464
WIRE 512 -464 480 -464
WIRE 656 -464 656 -544
WIRE 656 -464 592 -464
WIRE 656 -432 656 -464
WIRE 1056 -400 1056 -736
WIRE 1200 -384 1200 -432
WIRE 1360 -384 1360 -432
WIRE 1520 -384 1520 -432
WIRE 1680 -384 1680 -432
WIRE -176 -368 -176 -464
WIRE 64 -368 -176 -368
WIRE 656 -320 656 -352
WIRE -32 -272 -176 -272
WIRE 64 -272 48 -272
WIRE 1056 -272 1056 -320
WIRE 1056 -272 480 -272
WIRE 1200 -272 1200 -320
WIRE 1360 -272 1360 -320
WIRE 1520 -272 1520 -320
WIRE 1680 -272 1680 -320
WIRE 1056 -224 1056 -272
WIRE -176 -176 -176 -272
WIRE -48 -176 -176 -176
WIRE 64 -176 -48 -176
WIRE -48 -160 -48 -176
WIRE 1200 -160 1200 -208
WIRE 1360 -160 1360 -208
WIRE 1520 -160 1520 -208
WIRE 1680 -160 1680 -208
WIRE 1056 -112 1056 -144
WIRE 64 -80 32 -80
WIRE -48 -64 -48 -96
WIRE 1200 -48 1200 -96
WIRE 1360 -48 1360 -96
WIRE 1520 -48 1520 -96
WIRE 1680 -48 1680 -96
WIRE -176 16 -176 -176
WIRE 64 16 -176 16
WIRE 560 16 480 16
WIRE 656 16 560 16
WIRE 656 32 656 16
WIRE 560 48 560 16
WIRE -176 112 -176 96
WIRE 64 112 -176 112
WIRE -176 128 -176 112
WIRE 560 144 560 112
WIRE 656 144 656 112
WIRE -32 208 -64 208
WIRE 64 208 48 208
WIRE 1200 208 1200 16
WIRE 1200 208 480 208
WIRE -176 224 -176 208
WIRE 64 304 -208 304
WIRE 1360 304 1360 16
WIRE 1360 304 480 304
WIRE -208 336 -208 304
WIRE -32 400 -64 400
WIRE 64 400 48 400
WIRE 1520 400 1520 16
WIRE 1520 400 480 400
WIRE -32 496 -176 496
WIRE 64 496 -32 496
WIRE 1680 496 1680 16
WIRE 1680 496 480 496
WIRE -176 512 -176 496
WIRE -32 576 -32 496
WIRE 496 592 480 592
WIRE 608 592 576 592
WIRE -176 624 -176 592
WIRE -32 688 -32 640
WIRE 176 688 176 656
WIRE 272 688 272 656
WIRE 368 688 368 656
WIRE -176 720 -176 688
FLAG 176 688 0
FLAG 272 688 0
FLAG 368 688 0
FLAG -320 -608 0
FLAG 656 -320 0
FLAG 832 -608 0
FLAG 896 -608 0
FLAG 976 -608 0
FLAG 1056 -112 0
FLAG -256 -736 IN
FLAG 1568 -736 OUT
FLAG -176 720 0
FLAG -32 688 0
FLAG 656 144 0
FLAG 560 144 0
FLAG -48 -64 0
FLAG -64 400 0
FLAG 608 592 0
FLAG -64 208 0
FLAG -208 416 0
FLAG 32 -80 0
FLAG -176 224 0
SYMBOL voltage -320 -720 R0
SYMATTR InstName V1
SYMATTR Value 6
SYMBOL ind 192 -720 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 4.7
SYMATTR SpiceLine Rser=19.5m
SYMBOL pmos 16 -688 M270
WINDOW 0 97 94 VLeft 2
WINDOW 3 74 96 VLeft 2
SYMATTR InstName M1
SYMATTR Value SQ4401EY
SYMBOL res 608 -480 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 3.74K
SYMBOL res 640 -448 R0
SYMATTR InstName R2
SYMATTR Value 40m
SYMBOL nmos 608 -640 R0
SYMATTR InstName M2
SYMATTR Value AON6266E
SYMBOL res 608 -576 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 10
SYMBOL schottky 704 -720 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D1
SYMATTR Value MBRS360
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL cap 880 -704 R0
WINDOW 123 26 76 Left 2
SYMATTR Value2 m=3
SYMATTR InstName C2
SYMATTR Value 4.7
SYMBOL cap 960 -704 R0
SYMATTR InstName C3
SYMATTR Value 1
SYMBOL res 1040 -416 R0
SYMATTR InstName R4
SYMATTR Value 226K
SYMBOL res 1040 -240 R0
SYMATTR InstName R5
SYMATTR Value 15K
SYMBOL res 640 16 R0
SYMATTR InstName R6
SYMATTR Value 76.8K
SYMBOL res -192 496 R0
SYMATTR InstName R7
SYMATTR Value 8.06K
SYMBOL cap -192 624 R0
SYMATTR InstName C4
SYMATTR Value 68n
SYMBOL cap -48 576 R0
SYMATTR InstName C5
SYMATTR Value 2.2n
SYMBOL cap 544 112 M180
WINDOW 0 24 56 Left 2
WINDOW 3 24 8 Left 2
SYMATTR InstName C6
SYMATTR Value 100p
SYMBOL cap -64 -160 R0
SYMATTR InstName C7
SYMATTR Value 1
SYMBOL res 64 384 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R8
SYMATTR Value 84.5K
SYMBOL res 480 576 M90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R9
SYMATTR Value 45.3K
SYMBOL LED 1184 -608 R0
SYMATTR InstName D2
SYMATTR Value LXHL-BW02
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED 1184 -496 R0
SYMATTR InstName D3
SYMATTR Value LXHL-BW02
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED 1184 -384 R0
SYMATTR InstName D4
SYMATTR Value LXHL-BW02
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED 1184 -272 R0
SYMATTR InstName D5
SYMATTR Value LXHL-BW02
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED 1184 -160 R0
SYMATTR InstName D6
SYMATTR Value LXHL-BW02
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED 1184 -48 R0
SYMATTR InstName D7
SYMATTR Value LXHL-BW02
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED 1344 -608 R0
SYMATTR InstName D8
SYMATTR Value LXHL-BW02
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED 1344 -496 R0
SYMATTR InstName D9
SYMATTR Value LXHL-BW02
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED 1344 -384 R0
SYMATTR InstName D10
SYMATTR Value LXHL-BW02
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED 1344 -272 R0
SYMATTR InstName D11
SYMATTR Value LXHL-BW02
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED 1344 -160 R0
SYMATTR InstName D12
SYMATTR Value LXHL-BW02
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED 1344 -48 R0
SYMATTR InstName D13
SYMATTR Value LXHL-BW02
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED 1504 -608 R0
SYMATTR InstName D14
SYMATTR Value LXHL-BW02
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED 1504 -496 R0
SYMATTR InstName D15
SYMATTR Value LXHL-BW02
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED 1504 -384 R0
SYMATTR InstName D16
SYMATTR Value LXHL-BW02
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED 1504 -272 R0
SYMATTR InstName D17
SYMATTR Value LXHL-BW02
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED 1504 -160 R0
SYMATTR InstName D18
SYMATTR Value LXHL-BW02
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED 1504 -48 R0
SYMATTR InstName D19
SYMATTR Value LXHL-BW02
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED 1664 -608 R0
SYMATTR InstName D20
SYMATTR Value LXHL-BW02
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED 1664 -496 R0
SYMATTR InstName D21
SYMATTR Value LXHL-BW02
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED 1664 -384 R0
SYMATTR InstName D22
SYMATTR Value LXHL-BW02
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED 1664 -272 R0
SYMATTR InstName D23
SYMATTR Value LXHL-BW02
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED 1664 -160 R0
SYMATTR InstName D24
SYMATTR Value LXHL-BW02
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED 1664 -48 R0
SYMATTR InstName D25
SYMATTR Value LXHL-BW02
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL cap 816 -704 R0
SYMATTR InstName C1
SYMATTR Value 47
SYMBOL res 64 192 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R10
SYMATTR Value 59K
SYMBOL voltage -208 320 R0
WINDOW 3 -201 138 Left 2
SYMATTR InstName V2
SYMATTR Value PULSE(0 3.3 0 10n 10n 0.3m 0.5m)
SYMBOL res 64 -288 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R11
SYMATTR Value 100K
SYMBOL res -192 0 R0
SYMATTR InstName R12
SYMATTR Value 100K
SYMBOL res -192 112 R0
SYMATTR InstName R13
SYMATTR Value 20K
SYMBOL MAX20444B 272 16 R0
SYMATTR InstName U2
TEXT 184 792 Left 2 !.tran 45m startup
TEXT 704 560 Left 2 ;Variable definition\n \nDIM_EXT = 1 if external dimming, 0 if I2C.\n        Note:Internal Dimming is not modeled.\nHDIM = 1 if Hybrid dimming is enabled, 0 if disabled\nSIM_SPEED_MULT multiplier to speed up the start-up routine.\n        Reccomended value ranges from 1 to 10 though can be increased indefinitely,\n        However model performance is not guaranteed.\nENABLED_CH= write1 to 4\n        1 to enable channel 1\n        2 to enable both channels 1 and 2\n        3 to enable channels 1, 2 and 3\n        4 to enable all channels\n        Note: When disabling unused strings, it is necessary to start by disabling the \n        highest numbered current sinks first.