Version 4
SHEET 1 3740 696
WIRE -1408 -1072 -1456 -1072
WIRE -1184 -1072 -1344 -1072
WIRE -1056 -1072 -1184 -1072
WIRE -672 -1072 -1056 -1072
WIRE -560 -1072 -672 -1072
WIRE -1056 -976 -1056 -1072
WIRE -560 -976 -560 -1072
WIRE -1184 -816 -1184 -1072
WIRE -1456 -800 -1456 -1072
WIRE -1056 -768 -1056 -896
WIRE -1056 -768 -1120 -768
WIRE -1008 -768 -1056 -768
WIRE -880 -768 -928 -768
WIRE -768 -768 -816 -768
WIRE -560 -768 -560 -896
WIRE -560 -768 -704 -768
WIRE -240 -768 -560 -768
WIRE -672 -672 -672 -1072
WIRE -560 -656 -560 -768
WIRE -1184 -576 -1184 -720
WIRE -976 -576 -1184 -576
WIRE -672 -576 -672 -608
WIRE -672 -576 -896 -576
WIRE -608 -576 -672 -576
WIRE -1184 -544 -1184 -576
WIRE -1456 -432 -1456 -720
WIRE -1184 -432 -1184 -464
WIRE -1184 -432 -1456 -432
WIRE -560 -432 -560 -560
WIRE -560 -432 -1184 -432
WIRE -1456 -400 -1456 -432
FLAG -1456 -400 0
FLAG -240 -768 Output
IOPIN -240 -768 Out
SYMBOL res -1200 -560 R0
SYMATTR InstName R19
SYMATTR Value 66k
SYMBOL res -912 -784 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R21
SYMATTR Value 120k
SYMBOL res -880 -592 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R22
SYMATTR Value 47
SYMBOL res -1072 -992 R0
SYMATTR InstName R33
SYMATTR Value 47k
SYMBOL res -576 -992 R0
SYMATTR InstName R1
SYMATTR Value {Rload}
SYMBOL cap -688 -672 R0
SYMATTR InstName C1
SYMATTR Value 10n
SYMBOL voltage -1456 -816 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
WINDOW 3 -522 -38 Left 2
SYMATTR Value PWL(0 0 0.01ms 14.4 1000ms 9 4000ms 15)
SYMATTR InstName Vbat
SYMBOL schottky -1408 -1056 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D6
SYMATTR Value MBR1035
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL zener -816 -784 R90
WINDOW 0 -4 32 VBottom 2
WINDOW 3 36 32 VTop 2
SYMATTR InstName D1
SYMATTR Value BZX84C10L
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL schottky -768 -752 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D2
SYMATTR Value BAT54
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL nmos -608 -656 R0
SYMATTR InstName M1
SYMATTR Value IRFZ48N
SYMBOL pnp -1120 -720 R180
SYMATTR InstName Q1
SYMATTR Value BC557C
TEXT -1280 -400 Left 2 ;Unterspannungsabschaltung (Undervoltage Lockout - UVLO) - schont Akkus
TEXT -1696 -400 Left 2 !.tran 0 1 0 startup
TEXT -448 -400 Left 2 !.step param Rload list 3 5 8 16 50 100 333
RECTANGLE Normal -416 -368 -1312 -1120 2