* SPICE netlist
V6 V_HIGH 0 {V_HIGH}
V_RD RD 0 PULSE(0 3.3 50n 1n 1n {TON} {TC} 1000)
V_EN EN 0 3.3
V_LOGIC V_LOGIC 0 3.3
D13 N018 N017 BAT54
R19 0 N018 100
R20 N022 N017 220
R21 N017 V_LOGIC 220
Q15 N018 N017 V_LOGIC 0 2N3906
Q16 0 RD N022 0 2N3906
Q17 0 EN N022 0 2N3906
D14 N023 N024 BAT54
R22 V_HIGH N024 1k
R23 N021 N023 110
R24 N023 0 110
Q18 V_LOGIC N018 N021 0 2N3904
Q19 N024 N023 0 0 2N3904
Q20 DRV_L N025 N027 0 2N3904
D15 N025 DRV_L BAT54
Q21 N005 DRV_IN N019 0 2N3904
R25 N019 N025 1k
R26 N025 0 110
C9 N019 N025 100p
Q22 0 DRV_IN N015 0 2N3906
R27 N005 N013 110
R28 N013 N015 1k
C10 N013 N015 100p
D16 DRV_L N013 BAT54
Q23 DRV_L N013 N010 0 2N3906
R29 V_HIGH N005 1m
Q24 DRV_H N026 N028 0 2N3904
D17 N026 DRV_H BAT54
Q25 N006 DRV_L N020 0 2N3904
R30 N020 N026 1k
R31 N026 0 110
C11 N020 N026 100p
Q26 0 DRV_L N016 0 2N3906
R63 N006 N014 110
R64 N014 N016 1k
C12 N014 N016 100p
D18 DRV_H N014 BAT54
Q27 DRV_H N014 N011 0 2N3906
R65 V_HIGH N006 1m
D30 N004 N002 BAT54
R66 0 N004 100
R67 N008 N002 220
R68 N002 V_LOGIC 220
Q28 N004 N002 V_LOGIC 0 2N3906
Q55 0 RD N008 0 2N3906
Q56 0 EN N008 0 2N3906
D31 N009 TR BAT54
R69 V_HIGH TR 220
R70 N007 N009 110
R71 N009 0 110
Q57 V_LOGIC N004 N007 0 2N3904
Q58 TR N009 0 0 2N3904
D32 BL N003 BAT54
R72 0 BL 100
R73 N012 N003 2k
R74 N003 V_HIGH 110
Q59 BL N003 V_HIGH 0 2N3906
Q60 0 TR N012 0 2N3906
V_DRV_IN DRV_IN 0 3.3
R1 N005 N010 33
R2 N027 0 33
R3 N028 0 33
R4 N006 N011 33
.step temp -25 125 25
;.step param V_HIGH 18 25 1
;.step param R_TRIM 4.1k 4.2k 20
.param R_TRIM=4.2k
.param V_HIGH 20
;.param temp 25
.param TON=300n
.param TC=500n
.dc V_DRV_IN 0 {V_HIGH} 0.01

* LTspice schematic (.asc)
Version 4.1
SHEET 1 7248 2192
WIRE -1112 -504 -1672 -504
WIRE -1048 -504 -1112 -504
WIRE -2760 -392 -2952 -392
WIRE -2648 -392 -2760 -392
WIRE -2360 -392 -2648 -392
WIRE -2056 -392 -2360 -392
WIRE -1832 -392 -1896 -392
WIRE -1768 -392 -1832 -392
WIRE -1544 -392 -1768 -392
WIRE -1256 -392 -1544 -392
WIRE -2648 -344 -2648 -392
WIRE -1544 -344 -1544 -392
WIRE -1768 -328 -1768 -392
WIRE -2360 -248 -2360 -392
WIRE -1256 -248 -1256 -392
WIRE -2056 -232 -2056 -392
WIRE -3480 -200 -3560 -200
WIRE -2648 -200 -2648 -264
WIRE -2520 -200 -2648 -200
WIRE -2424 -200 -2520 -200
WIRE -1544 -200 -1544 -264
WIRE -1416 -200 -1544 -200
WIRE -1320 -200 -1416 -200
WIRE -2120 -184 -2200 -184
WIRE -1768 -136 -1768 -248
WIRE -1672 -136 -1672 -504
WIRE -1672 -136 -1768 -136
WIRE -2648 -120 -2648 -200
WIRE -1544 -120 -1544 -200
WIRE -232 -120 -424 -120
WIRE -120 -120 -232 -120
WIRE 168 -120 -120 -120
WIRE 472 -120 168 -120
WIRE 696 -120 632 -120
WIRE 760 -120 696 -120
WIRE 984 -120 760 -120
WIRE 1304 -120 1256 -120
WIRE 1496 -120 1384 -120
WIRE 1768 -120 1496 -120
WIRE 2200 -120 1768 -120
WIRE 2584 -120 2536 -120
WIRE 2776 -120 2664 -120
WIRE 3048 -120 2776 -120
WIRE 3480 -120 3048 -120
WIRE -2520 -104 -2520 -200
WIRE -2456 -104 -2520 -104
WIRE -2360 -104 -2360 -152
WIRE -2360 -104 -2392 -104
WIRE -1416 -104 -1416 -200
WIRE -1352 -104 -1416 -104
WIRE -1256 -104 -1256 -152
WIRE -1256 -104 -1288 -104
WIRE 2200 -104 2200 -120
WIRE 3480 -104 3480 -120
WIRE -2056 -88 -2056 -136
WIRE 1768 -72 1768 -120
WIRE 3048 -72 3048 -120
WIRE -2648 -24 -2648 -40
WIRE -2648 -24 -2776 -24
WIRE -2360 -24 -2360 -104
WIRE -2200 -24 -2200 -184
WIRE -2200 -24 -2360 -24
WIRE -1864 -24 -1928 -24
WIRE -1768 -24 -1768 -136
WIRE -1768 -24 -1800 -24
WIRE 760 -24 760 -120
WIRE 2200 -8 2200 -24
WIRE 3480 -8 3480 -24
WIRE -2648 8 -2648 -24
WIRE -1544 8 -1544 -40
WIRE -1768 24 -1768 -24
WIRE -1256 24 -1256 -104
WIRE -1112 24 -1256 24
WIRE -1048 24 -1112 24
WIRE 1768 40 1768 8
WIRE 2040 40 1768 40
WIRE 2136 40 2040 40
WIRE 3048 40 3048 8
WIRE 3320 40 3048 40
WIRE 3416 40 3320 40
WIRE -2936 56 -2968 56
WIRE -2712 56 -2936 56
WIRE -1672 56 -1672 -136
WIRE -1608 56 -1672 56
WIRE -2056 72 -2056 -8
WIRE -1928 72 -1928 -24
WIRE -1928 72 -2056 72
WIRE -1832 72 -1928 72
WIRE 1768 72 1768 40
WIRE 1768 72 1672 72
WIRE 3048 72 3048 40
WIRE 3048 72 2952 72
WIRE -2776 104 -2776 -24
WIRE 1768 104 1768 72
WIRE 3048 104 3048 72
WIRE -2360 120 -2360 -24
WIRE -1256 120 -1256 24
WIRE 1672 120 1672 72
WIRE 2952 120 2952 72
WIRE -2056 136 -2056 72
WIRE -2952 152 -2968 152
WIRE -2840 152 -2952 152
WIRE 2040 152 2040 40
WIRE 2104 152 2040 152
WIRE 2200 152 2200 88
WIRE 2200 152 2168 152
WIRE 3320 152 3320 40
WIRE 3384 152 3320 152
WIRE 3480 152 3480 88
WIRE 3480 152 3448 152
WIRE 1672 216 1672 184
WIRE 1768 216 1768 184
WIRE 1768 216 1672 216
WIRE 2952 216 2952 184
WIRE 3048 216 3048 184
WIRE 3048 216 2952 216
WIRE 1768 248 1768 216
WIRE 3048 248 3048 216
WIRE -2776 264 -2776 200
WIRE -2776 264 -2888 264
WIRE -2648 264 -2648 104
WIRE -2648 264 -2776 264
WIRE -2488 264 -2648 264
WIRE -2360 264 -2360 200
WIRE -2360 264 -2488 264
WIRE -2056 264 -2056 216
WIRE -2056 264 -2360 264
WIRE -1768 264 -1768 120
WIRE -1768 264 -2056 264
WIRE -1544 264 -1544 104
WIRE -1544 264 -1768 264
WIRE -1256 264 -1256 200
WIRE -1256 264 -1544 264
WIRE -120 264 -120 -120
WIRE 1704 296 1368 296
WIRE 2984 296 2648 296
WIRE -2488 344 -2488 264
WIRE 168 360 168 -120
WIRE 472 376 472 -120
WIRE 1496 376 1496 -120
WIRE 2776 376 2776 -120
WIRE -120 408 -120 344
WIRE 8 408 -120 408
WIRE 104 408 8 408
WIRE 408 424 328 424
WIRE 1368 424 1368 296
WIRE 1368 424 1144 424
WIRE 1432 424 1368 424
WIRE 2200 424 2200 152
WIRE 2392 424 2200 424
WIRE 2648 424 2648 296
WIRE 2648 424 2392 424
WIRE 2712 424 2648 424
WIRE 3480 424 3480 152
WIRE 3576 424 3480 424
WIRE 3624 424 3576 424
WIRE -120 488 -120 408
WIRE 8 504 8 408
WIRE 72 504 8 504
WIRE 168 504 168 456
WIRE 168 504 136 504
WIRE 1496 504 1496 472
WIRE 1496 504 1432 504
WIRE 2776 504 2776 472
WIRE 2776 504 2712 504
WIRE 472 520 472 472
WIRE 1496 520 1496 504
WIRE 2776 520 2776 504
WIRE 1432 536 1432 504
WIRE 2712 536 2712 504
WIRE -120 584 -120 568
WIRE -120 584 -248 584
WIRE 168 584 168 504
WIRE 328 584 328 424
WIRE 328 584 168 584
WIRE 664 584 600 584
WIRE 760 584 760 56
WIRE 760 584 728 584
WIRE 2104 584 2040 584
WIRE 2200 584 2200 424
WIRE 2200 584 2168 584
WIRE 3384 584 3320 584
WIRE 3480 584 3480 424
WIRE 3480 584 3448 584
WIRE -120 616 -120 584
WIRE 760 632 760 584
WIRE 2200 632 2200 584
WIRE 3480 632 3480 584
WIRE 1432 648 1432 600
WIRE 1496 648 1496 600
WIRE 1496 648 1432 648
WIRE 2712 648 2712 600
WIRE 2776 648 2776 600
WIRE 2776 648 2712 648
WIRE -408 664 -440 664
WIRE -184 664 -408 664
WIRE 472 680 472 600
WIRE 600 680 600 584
WIRE 600 680 472 680
WIRE 696 680 600 680
WIRE 1496 680 1496 648
WIRE 2040 680 2040 584
WIRE 2040 680 1496 680
WIRE 2136 680 2040 680
WIRE 2776 680 2776 648
WIRE 3320 680 3320 584
WIRE 3320 680 2776 680
WIRE 3416 680 3320 680
WIRE -248 712 -248 584
WIRE 168 728 168 584
WIRE 472 744 472 680
WIRE 1496 744 1496 680
WIRE 2776 744 2776 680
WIRE -424 760 -440 760
WIRE -312 760 -424 760
WIRE 2200 760 2200 728
WIRE 3480 760 3480 728
WIRE -3624 840 -3624 808
WIRE -248 872 -248 808
WIRE -248 872 -360 872
WIRE -120 872 -120 712
WIRE -120 872 -248 872
WIRE 40 872 -120 872
WIRE 168 872 168 808
WIRE 168 872 40 872
WIRE 472 872 472 824
WIRE 472 872 168 872
WIRE 760 872 760 728
WIRE 760 872 472 872
WIRE 984 872 760 872
WIRE 1496 872 1496 824
WIRE 1496 872 1192 872
WIRE 1768 872 1768 344
WIRE 1768 872 1496 872
WIRE 2200 872 2200 840
WIRE 2200 872 1768 872
WIRE 2776 872 2776 824
WIRE 2776 872 2472 872
WIRE 3048 872 3048 344
WIRE 3048 872 2776 872
WIRE 3480 872 3480 840
WIRE 3480 872 3048 872
WIRE 1192 920 1192 872
WIRE 2472 920 2472 872
WIRE 40 952 40 872
FLAG -3624 840 0
FLAG -3624 728 V_HIGH
FLAG -424 -1080 RD
FLAG -424 -1000 0
FLAG -424 -776 EN
FLAG -424 -696 0
FLAG -3624 1016 V_LOGIC
FLAG -3624 1096 0
FLAG -232 -120 V_LOGIC
FLAG 696 -120 V_HIGH
FLAG 40 952 0
FLAG 1192 920 0
FLAG 1256 -120 V_HIGH
FLAG 2472 920 0
FLAG 2536 -120 V_HIGH
FLAG -408 664 RD
FLAG -424 760 EN
FLAG -2936 56 RD
FLAG -2760 -392 V_LOGIC
FLAG -2952 152 EN
FLAG -1832 -392 V_HIGH
FLAG -2488 344 0
FLAG -1112 -504 TR
FLAG -1112 24 BL
FLAG 2392 424 DRV_L
FLAG 3576 424 DRV_H
FLAG 1144 424 DRV_IN
FLAG 8 -760 DRV_IN
FLAG 8 -680 0
SYMBOL voltage -3624 712 R0
SYMATTR InstName V6
SYMATTR Value {V_HIGH}
SYMBOL voltage -424 -1096 R0
SYMATTR Value PULSE(0 3.3 50n 1n 1n {TON} {TC} 1000)
SYMATTR InstName V_RD
SYMBOL voltage -424 -792 R0
SYMATTR Value 3.3
SYMATTR InstName V_EN
SYMBOL voltage -3624 1000 R0
SYMATTR Value 3.3
SYMATTR InstName V_LOGIC
SYMBOL schottky 136 520 M270
SYMATTR InstName D13
SYMATTR Value BAT54
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res 152 824 M180
SYMATTR InstName R19
SYMATTR Value 100
SYMBOL res -136 584 M180
SYMATTR InstName R20
SYMATTR Value 220
SYMBOL res -136 360 M180
SYMATTR InstName R21
SYMATTR Value 220
SYMBOL pnp 104 456 M180
SYMATTR InstName Q15
SYMATTR Value 2N3906
SYMBOL pnp -184 712 M180
SYMATTR InstName Q16
SYMATTR Value 2N3906
SYMBOL pnp -312 808 M180
SYMATTR InstName Q17
SYMATTR Value 2N3906
SYMBOL schottky 664 568 M90
SYMATTR InstName D14
SYMATTR Value BAT54
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res 744 -40 R0
SYMATTR InstName R22
SYMATTR Value 1k
SYMBOL res 456 504 R0
SYMATTR InstName R23
SYMATTR Value 110
SYMBOL res 456 728 R0
SYMATTR InstName R24
SYMATTR Value 110
SYMBOL npn 408 376 R0
SYMATTR InstName Q18
SYMATTR Value 2N3904
SYMBOL npn 696 632 R0
SYMATTR InstName Q19
SYMATTR Value 2N3904
SYMBOL npn 2136 632 R0
SYMATTR InstName Q20
SYMATTR Value 2N3904
SYMBOL schottky 2104 600 R270
SYMATTR InstName D15
SYMATTR Value BAT54
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL npn 1432 376 R0
SYMATTR InstName Q21
SYMATTR Value 2N3904
SYMBOL res 1480 504 R0
SYMATTR InstName R25
SYMATTR Value 1k
SYMBOL res 1480 728 R0
SYMATTR InstName R26
SYMATTR Value 110
SYMBOL cap 1416 536 R0
SYMATTR InstName C9
SYMATTR Value 100p
SYMBOL pnp 1704 344 M180
SYMATTR InstName Q22
SYMATTR Value 2N3906
SYMBOL res 1752 -88 R0
SYMATTR InstName R27
SYMATTR Value 110
SYMBOL res 1752 88 R0
SYMATTR InstName R28
SYMATTR Value 1k
SYMBOL cap 1656 120 R0
SYMATTR InstName C10
SYMATTR Value 100p
SYMBOL schottky 2168 136 R90
SYMATTR InstName D16
SYMATTR Value BAT54
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL pnp 2136 88 M180
SYMATTR InstName Q23
SYMATTR Value 2N3906
SYMBOL res 1288 -104 R270
SYMATTR InstName R29
SYMATTR Value 1m
SYMBOL npn 3416 632 R0
SYMATTR InstName Q24
SYMATTR Value 2N3904
SYMBOL schottky 3384 600 R270
SYMATTR InstName D17
SYMATTR Value BAT54
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL npn 2712 376 R0
SYMATTR InstName Q25
SYMATTR Value 2N3904
SYMBOL res 2760 504 R0
SYMATTR InstName R30
SYMATTR Value 1k
SYMBOL res 2760 728 R0
SYMATTR InstName R31
SYMATTR Value 110
SYMBOL cap 2696 536 R0
SYMATTR InstName C11
SYMATTR Value 100p
SYMBOL pnp 2984 344 M180
SYMATTR InstName Q26
SYMATTR Value 2N3906
SYMBOL res 3032 -88 R0
SYMATTR InstName R63
SYMATTR Value 110
SYMBOL res 3032 88 R0
SYMATTR InstName R64
SYMATTR Value 1k
SYMBOL cap 2936 120 R0
SYMATTR InstName C12
SYMATTR Value 100p
SYMBOL schottky 3448 136 R90
SYMATTR InstName D18
SYMATTR Value BAT54
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL pnp 3416 88 M180
SYMATTR InstName Q27
SYMATTR Value 2N3906
SYMBOL res 2568 -104 R270
SYMATTR InstName R65
SYMATTR Value 1m
SYMBOL schottky -2392 -88 M270
SYMATTR InstName D30
SYMATTR Value BAT54
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res -2376 216 M180
SYMATTR InstName R66
SYMATTR Value 100
SYMBOL res -2664 -24 M180
SYMATTR InstName R67
SYMATTR Value 220
SYMBOL res -2664 -248 M180
SYMATTR InstName R68
SYMATTR Value 220
SYMBOL pnp -2424 -152 M180
SYMATTR InstName Q28
SYMATTR Value 2N3906
SYMBOL pnp -2712 104 M180
SYMATTR InstName Q55
SYMATTR Value 2N3906
SYMBOL pnp -2840 200 M180
SYMATTR InstName Q56
SYMATTR Value 2N3906
SYMBOL schottky -1864 -40 M90
SYMATTR InstName D31
SYMATTR Value BAT54
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res -1784 -344 R0
SYMATTR InstName R69
SYMATTR Value 220
SYMBOL res -2072 -104 R0
SYMATTR InstName R70
SYMATTR Value 110
SYMBOL res -2072 120 R0
SYMATTR InstName R71
SYMATTR Value 110
SYMBOL npn -2120 -232 R0
SYMATTR InstName Q57
SYMATTR Value 2N3904
SYMBOL npn -1832 24 R0
SYMATTR InstName Q58
SYMATTR Value 2N3904
SYMBOL schottky -1288 -88 M270
SYMATTR InstName D32
SYMATTR Value BAT54
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res -1272 216 M180
SYMATTR InstName R72
SYMATTR Value 100
SYMBOL res -1560 -24 M180
SYMATTR InstName R73
SYMATTR Value 2k
SYMBOL res -1560 -248 M180
SYMATTR InstName R74
SYMATTR Value 110
SYMBOL pnp -1320 -152 M180
SYMATTR InstName Q59
SYMATTR Value 2N3906
SYMBOL pnp -1608 104 M180
SYMATTR InstName Q60
SYMATTR Value 2N3906
SYMBOL voltage 8 -776 R0
SYMATTR Value 3.3
SYMATTR InstName V_DRV_IN
SYMBOL res 2184 -120 R0
SYMATTR InstName R1
SYMATTR Value 33
SYMBOL res 2184 744 R0
SYMATTR InstName R2
SYMATTR Value 33
SYMBOL res 3464 744 R0
SYMATTR InstName R3
SYMATTR Value 33
SYMBOL res 3464 -120 R0
SYMATTR InstName R4
SYMATTR Value 33