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508 lines
12 KiB
508 lines
12 KiB
EESchema Schematic File Version 4
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LIBS:batterystation-cache
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EELAYER 26 0
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EELAYER END
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$Descr A4 11693 8268
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encoding utf-8
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Sheet 6 9
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Title ""
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Date ""
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Rev ""
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Comp ""
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Comment1 ""
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Comment2 ""
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Comment3 ""
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Comment4 ""
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$EndDescr
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$Comp
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L conn:CONN_01X08 P19
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U 1 1 5CBC6E54
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P 6550 3150
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F 0 "P19" H 6628 3191 50 0000 L CNN
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F 1 "LT1512" H 6628 3100 50 0000 L CNN
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F 2 "Housings_DIP:DIP-8_W7.62mm" H 6627 3054 50 0001 L CNN
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F 3 "" H 6550 3150 50 0000 C CNN
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1 6550 3150
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1 0 0 -1
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$EndComp
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Wire Wire Line
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5200 3100 6350 3100
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Text Label 5200 3100 0 50 ~ 0
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ShutdownPin
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Wire Wire Line
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6350 2900 6200 2900
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Wire Wire Line
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6350 3000 5950 3000
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Text Label 5200 2800 0 50 ~ 0
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Vcomp
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Text Label 5200 2900 0 50 ~ 0
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Feedback
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Text Label 5200 3000 0 50 ~ 0
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I_Feedback
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Text Label 5200 3200 0 50 ~ 0
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Vcc
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Text Label 5200 3300 0 50 ~ 0
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GND_S
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Text Label 5200 3400 0 50 ~ 0
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GND
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Text Label 5200 3500 0 50 ~ 0
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Vsw
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Text HLabel 5200 3100 0 50 Input ~ 0
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LTShutdownPin
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Wire Wire Line
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4200 3200 4200 2650
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Wire Wire Line
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4200 3200 4350 3200
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$Comp
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L power:+5V #PWR0129
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U 1 1 5CBC7AC2
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P 4200 2650
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F 0 "#PWR0129" H 4200 2500 50 0001 C CNN
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F 1 "+5V" H 4215 2823 50 0000 C CNN
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F 2 "" H 4200 2650 50 0000 C CNN
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F 3 "" H 4200 2650 50 0000 C CNN
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1 4200 2650
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1 0 0 -1
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$EndComp
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$Comp
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L power:GND #PWR0130
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U 1 1 5CBC7C61
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P 3600 3400
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F 0 "#PWR0130" H 3600 3150 50 0001 C CNN
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F 1 "GND" H 3605 3227 50 0000 C CNN
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F 2 "" H 3600 3400 50 0000 C CNN
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F 3 "" H 3600 3400 50 0000 C CNN
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1 3600 3400
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1 0 0 -1
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$EndComp
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$Comp
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L device:C_Small C6
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U 1 1 5CBC7FC7
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P 4350 3300
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F 0 "C6" H 4442 3346 50 0000 L CNN
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F 1 "2.2uF" H 4442 3255 50 0000 L CNN
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F 2 "Capacitors_SMD:C_0805_HandSoldering" H 4350 3300 50 0001 C CNN
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F 3 "" H 4350 3300 50 0000 C CNN
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1 4350 3300
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1 0 0 -1
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$EndComp
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Connection ~ 4350 3200
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Wire Wire Line
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4350 3200 6350 3200
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Connection ~ 4350 3400
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Wire Wire Line
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4350 3400 4950 3400
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Wire Wire Line
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3600 3400 4350 3400
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$Comp
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L pspice:INDUCTOR L1
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U 1 1 5CBC842B
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P 4250 3750
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F 0 "L1" H 4250 3965 50 0000 C CNN
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F 1 "33uH" H 4250 3874 50 0000 C CNN
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F 2 "Inductors:Inductor_Taiyo-Yuden_NR-60xx_HandSoldering" H 4250 3750 50 0001 C CNN
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F 3 "" H 4250 3750 50 0000 C CNN
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1 4250 3750
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1 0 0 -1
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$EndComp
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Wire Wire Line
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4000 3750 4000 3200
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Wire Wire Line
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4000 3200 4200 3200
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Connection ~ 4200 3200
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Wire Wire Line
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4500 3500 4500 3750
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Wire Wire Line
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4500 3500 5200 3500
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Wire Wire Line
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4950 3300 4950 3400
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Wire Wire Line
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4950 3300 6350 3300
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Connection ~ 4950 3400
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Wire Wire Line
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4950 3400 6350 3400
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$Comp
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L device:C_Small C8
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U 1 1 5CBC8B80
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P 5600 2350
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F 0 "C8" V 5371 2350 50 0000 C CNN
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F 1 "0.1uF" V 5462 2350 50 0000 C CNN
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F 2 "Capacitors_SMD:C_0805_HandSoldering" H 5600 2350 50 0001 C CNN
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F 3 "" H 5600 2350 50 0000 C CNN
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1 5600 2350
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0 1 1 0
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$EndComp
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$Comp
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L device:R R12
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U 1 1 5CBC8C04
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P 5850 2350
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F 0 "R12" V 5643 2350 50 0000 C CNN
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F 1 "1K" V 5734 2350 50 0000 C CNN
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F 2 "Capacitors_SMD:C_0805_HandSoldering" V 5780 2350 50 0001 C CNN
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F 3 "" H 5850 2350 50 0000 C CNN
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1 5850 2350
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0 1 1 0
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$EndComp
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Wire Wire Line
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5500 2350 5150 2350
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Wire Wire Line
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5150 2350 5150 2800
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Wire Wire Line
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5150 2800 6350 2800
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$Comp
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L power:GND #PWR0131
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U 1 1 5CBC8E91
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P 6150 2350
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F 0 "#PWR0131" H 6150 2100 50 0001 C CNN
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F 1 "GND" H 6155 2177 50 0000 C CNN
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F 2 "" H 6150 2350 50 0000 C CNN
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F 3 "" H 6150 2350 50 0000 C CNN
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1 6150 2350
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1 0 0 -1
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$EndComp
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Wire Wire Line
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6150 2350 6000 2350
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Connection ~ 5950 3000
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Wire Wire Line
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5950 3000 5200 3000
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$Comp
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L pspice:INDUCTOR L2
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U 1 1 5CBCA135
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P 5200 4150
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F 0 "L2" V 5154 4228 50 0000 L CNN
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F 1 "33uH" V 5245 4228 50 0000 L CNN
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F 2 "Inductors:Inductor_Taiyo-Yuden_NR-60xx_HandSoldering" H 5200 4150 50 0001 C CNN
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F 3 "" H 5200 4150 50 0000 C CNN
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1 5200 4150
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0 1 1 0
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$EndComp
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$Comp
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L device:C_Small C7
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U 1 1 5CBCA445
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P 5200 3750
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F 0 "C7" H 4950 3650 50 0000 L CNN
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F 1 "2.2uF" H 4900 3800 50 0000 L CNN
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F 2 "Capacitors_SMD:C_0805_HandSoldering" H 5200 3750 50 0001 C CNN
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F 3 "" H 5200 3750 50 0000 C CNN
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1 5200 3750
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1 0 0 -1
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$EndComp
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Wire Wire Line
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5200 3650 5200 3500
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Connection ~ 5200 3500
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Wire Wire Line
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5200 3500 6350 3500
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Wire Wire Line
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5200 3850 5200 3900
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$Comp
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L device:R R11
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U 1 1 5CBCAC52
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P 5450 4400
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F 0 "R11" V 5550 4350 50 0000 C CNN
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F 1 "24" V 5550 4500 50 0000 C CNN
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F 2 "Capacitors_SMD:C_0805_HandSoldering" V 5380 4400 50 0001 C CNN
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F 3 "" H 5450 4400 50 0000 C CNN
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1 5450 4400
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0 1 1 0
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$EndComp
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Wire Wire Line
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5300 4400 5200 4400
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Wire Wire Line
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5600 4400 5950 4400
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$Comp
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L device:C C9
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U 1 1 5CBC988F
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P 5950 4550
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F 0 "C9" H 6065 4596 50 0000 L CNN
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F 1 "0.22uF" H 6065 4505 50 0000 L CNN
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F 2 "Capacitors_SMD:C_0805_HandSoldering" H 5988 4400 50 0001 C CNN
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F 3 "" H 5950 4550 50 0000 C CNN
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1 5950 4550
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1 0 0 -1
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$EndComp
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Connection ~ 5950 4400
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Wire Wire Line
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5950 3000 5950 4400
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$Comp
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L power:GND #PWR0132
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U 1 1 5CBCB68D
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P 5950 4700
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F 0 "#PWR0132" H 5950 4450 50 0001 C CNN
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F 1 "GND" H 5955 4527 50 0000 C CNN
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F 2 "" H 5950 4700 50 0000 C CNN
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F 3 "" H 5950 4700 50 0000 C CNN
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1 5950 4700
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1 0 0 -1
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$EndComp
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Wire Wire Line
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5200 4400 5200 4750
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Connection ~ 5200 4400
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$Comp
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L device:R R10
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U 1 1 5CBCBDA1
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P 5200 4900
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F 0 "R10" H 5270 4946 50 0000 L CNN
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F 1 "0.2" H 5270 4855 50 0000 L CNN
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F 2 "Capacitors_SMD:C_0805_HandSoldering" V 5130 4900 50 0001 C CNN
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F 3 "" H 5200 4900 50 0000 C CNN
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1 5200 4900
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1 0 0 -1
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$EndComp
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$Comp
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L power:GND #PWR0133
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U 1 1 5CBCC005
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P 5200 5050
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F 0 "#PWR0133" H 5200 4800 50 0001 C CNN
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F 1 "GND" H 5205 4877 50 0000 C CNN
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F 2 "" H 5200 5050 50 0000 C CNN
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F 3 "" H 5200 5050 50 0000 C CNN
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1 5200 5050
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1 0 0 -1
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$EndComp
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$Comp
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L device:D_Schottky D2
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U 1 1 5CBCC66F
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P 5350 3900
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F 0 "D2" H 5350 3684 50 0000 C CNN
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F 1 "D_Schottky" H 5050 3750 50 0000 C CNN
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F 2 "Diodes_SMD:SOD-323_HandSoldering" H 5350 3900 50 0001 C CNN
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F 3 "" H 5350 3900 50 0000 C CNN
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1 5350 3900
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-1 0 0 1
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$EndComp
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Connection ~ 5200 3900
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Wire Wire Line
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5500 3900 6800 3900
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Wire Wire Line
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7000 3900 7000 4100
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$Comp
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L device:R_Variable R9
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U 1 1 5CBCD72A
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P 3100 6500
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F 0 "R9" H 2992 6454 50 0000 R CNN
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F 1 "100K" H 2992 6545 50 0000 R CNN
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F 2 "Pin_Headers:Pin_Header_Straight_1x04" V 3030 6500 50 0001 C CNN
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F 3 "" H 3100 6500 50 0000 C CNN
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1 3100 6500
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-1 0 0 1
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$EndComp
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$Comp
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L device:R R13
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U 1 1 5CBCD7D5
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P 6800 4850
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F 0 "R13" H 6870 4896 50 0000 L CNN
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F 1 "12.4K" H 6870 4805 50 0000 L CNN
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F 2 "Capacitors_SMD:C_0805_HandSoldering" V 6730 4850 50 0001 C CNN
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F 3 "" H 6800 4850 50 0000 C CNN
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1 6800 4850
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1 0 0 -1
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$EndComp
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Wire Wire Line
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6800 4600 6800 4650
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Wire Wire Line
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6800 4650 6550 4650
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Wire Wire Line
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6550 4650 6550 3700
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Wire Wire Line
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6550 3700 6200 3700
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Wire Wire Line
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6200 3700 6200 2900
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Connection ~ 6800 4650
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Wire Wire Line
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6800 4650 6800 4700
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Connection ~ 6200 2900
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Wire Wire Line
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6200 2900 5200 2900
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Wire Wire Line
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7000 4100 7100 4100
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Wire Wire Line
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7100 4100 7100 5250
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Wire Wire Line
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7100 4100 7400 4100
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Wire Wire Line
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7400 4100 7400 4500
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Connection ~ 7100 4100
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$Comp
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L device:C_Small C10
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U 1 1 5CBCF221
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P 7400 4600
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F 0 "C10" H 7492 4646 50 0000 L CNN
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F 1 "22uF" H 7492 4555 50 0000 L CNN
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F 2 "Capacitors_Tantalum_SMD:Tantalum_Case-C_EIA-6032-28_Hand" H 7400 4600 50 0001 C CNN
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F 3 "" H 7400 4600 50 0000 C CNN
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1 7400 4600
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1 0 0 -1
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$EndComp
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Text Notes 7500 3500 0 50 ~ 0
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Two 22uF capacitors, \nare marked as electrolytic \non data sheet.\nRest can be ceramic.
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Text Notes 3600 4550 0 50 ~ 0
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I should've searched for \nthis symbol online first.
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$Comp
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L power:GND #PWR0134
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U 1 1 5CBD1864
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P 6800 5000
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F 0 "#PWR0134" H 6800 4750 50 0001 C CNN
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F 1 "GND" H 6805 4827 50 0000 C CNN
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F 2 "" H 6800 5000 50 0000 C CNN
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F 3 "" H 6800 5000 50 0000 C CNN
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1 6800 5000
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1 0 0 -1
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$EndComp
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Text Notes 7200 2150 0 50 ~ 0
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How this is tuned:\nThe V divider on Feedback pin\ndetermines float voltage.\nThe R downstream of I_feedback \n(after 24 ohm resistor)\ndetermines current (100mV / R)\nSee data sheet for more details.\nEssentially: Set float voltage on r divider\nand make sure current resistor is high enough\nto be low current.
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Wire Wire Line
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6550 3700 7950 3700
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Connection ~ 6550 3700
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Text HLabel 7950 3700 2 50 Output ~ 0
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LT_FloatVoltage
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$Comp
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L power:GND #PWR0135
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U 1 1 5CBD2B70
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P 7400 4700
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F 0 "#PWR0135" H 7400 4450 50 0001 C CNN
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F 1 "GND" H 7405 4527 50 0000 C CNN
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F 2 "" H 7400 4700 50 0000 C CNN
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F 3 "" H 7400 4700 50 0000 C CNN
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1 7400 4700
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1 0 0 -1
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$EndComp
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Text HLabel 7100 5250 2 50 Input ~ 0
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LT_BATCHRG
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Text Notes 8150 5400 0 50 ~ 0
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Example calculation for R1:\nR1 = (R2(Vbat - 1.245) )\ (1.245+R2(0.3uA))\nwith default R2 at 12,400\nDesired Vbat float of 13.8 (lead)\n(13.8 - 1.245) * 12400 == 155682\n1.245 + (12400 * .000003) == .03720 + 1.245 == 1.2822\n155682/1.2822 == 121417\n\nIt would be evil for them to put 0.3uA and\nexpect you to convert that to 0.000003A\nBut that's what they did. At least they\ngive an example to check.\n\nFive zeros on that.\n\nSee docs for more details.\n\n\n\n
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Text Notes 5900 5950 0 50 ~ 0
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Variable Resistor should be\na max of 120K, for lead battery\nLowest, of 1.3V for nicd (must\nbe over 1.245) would be 532\nso a 536 (E48) resistor.\n
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$Comp
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L device:R R5
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U 1 1 5CBD3F6D
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P 1950 6650
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F 0 "R5" H 2020 6696 50 0000 L CNN
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F 1 "536" H 2020 6605 50 0000 L CNN
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F 2 "Capacitors_SMD:C_0805_HandSoldering" V 1880 6650 50 0001 C CNN
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F 3 "" H 1950 6650 50 0000 C CNN
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1 1950 6650
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1 0 0 -1
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|
$EndComp
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Wire Wire Line
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6800 3900 6800 4000
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Connection ~ 6800 3900
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Wire Wire Line
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6800 3900 7000 3900
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|
Text Label 6800 4000 0 50 ~ 0
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|
VDIVIN
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Text Label 6800 4600 0 50 ~ 0
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|
VDIVOUT
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Text Notes 2800 5050 0 50 ~ 0
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|
Voltage Divider
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|
Text Notes 3350 5700 0 50 ~ 0
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|
Allows switching between\n1)536 ohm for 1.3V nicad\n2)4.2lithium ion (28700ohm, use 0.1%)\n3)6V lead\n4)12V lead, but variable\n(to 20K plus 100K variable\nresistor)\n
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Wire Notes Line
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4850 7050 1500 7050
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Wire Notes Line
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1500 7050 1500 4850
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Wire Notes Line
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1500 4850 4850 4850
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|
Wire Notes Line
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4850 4850 4850 7050
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|
$Comp
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L device:R R8
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U 1 1 5CBD820D
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|
P 3100 6050
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|
F 0 "R8" H 3170 6096 50 0000 L CNN
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|
F 1 "2K" H 3170 6005 50 0000 L CNN
|
|
F 2 "Capacitors_SMD:C_0805_HandSoldering" V 3030 6050 50 0001 C CNN
|
|
F 3 "" H 3100 6050 50 0000 C CNN
|
|
1 3100 6050
|
|
1 0 0 -1
|
|
$EndComp
|
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Wire Wire Line
|
|
3100 6350 3100 6200
|
|
Wire Wire Line
|
|
3100 6800 3100 6650
|
|
Wire Wire Line
|
|
2900 5700 3100 5700
|
|
Wire Wire Line
|
|
3100 5700 3100 5900
|
|
Wire Wire Line
|
|
2150 6300 1950 6300
|
|
Wire Wire Line
|
|
1950 6300 1950 6500
|
|
Wire Wire Line
|
|
2800 5300 2800 5200
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|
Wire Wire Line
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|
2800 6800 3100 6800
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|
Text Label 2800 6900 0 50 ~ 0
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|
VDIVOUT
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Text Label 2800 5200 0 50 ~ 0
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|
VDIVIN
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|
$Comp
|
|
L switches:SW_SP3T SW2
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|
U 1 1 5CBDE680
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|
P 2800 5500
|
|
F 0 "SW2" V 2754 5646 50 0000 L CNN
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|
F 1 "SW_SP3T" V 2845 5646 50 0000 L CNN
|
|
F 2 "Buttons_Switches_SMD:SW_SP3T_PCM13" H 2175 5675 50 0001 C CNN
|
|
F 3 "" H 2175 5675 50 0000 C CNN
|
|
1 2800 5500
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|
0 1 1 0
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|
$EndComp
|
|
$Comp
|
|
L switches:SW_DPDT_x2 SW1
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|
U 1 1 5CBE02E2
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|
P 2250 6100
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|
F 0 "SW1" V 2204 6248 50 0000 L CNN
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|
F 1 "SW_DPDT_x2" V 2150 5550 50 0000 L CNN
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|
F 2 "Buttons_Switches_SMD:SW_SPDT_PCM12" H 2250 6100 50 0001 C CNN
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|
F 3 "" H 2250 6100 50 0000 C CNN
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|
1 2250 6100
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|
0 1 1 0
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|
$EndComp
|
|
$Comp
|
|
L device:R R6
|
|
U 1 1 5CBE0901
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|
P 2350 6650
|
|
F 0 "R6" H 2420 6696 50 0000 L CNN
|
|
F 1 "28.7K 1%" H 2420 6605 50 0000 L CNN
|
|
F 2 "Capacitors_SMD:C_0805_HandSoldering" V 2280 6650 50 0001 C CNN
|
|
F 3 "" H 2350 6650 50 0000 C CNN
|
|
1 2350 6650
|
|
1 0 0 -1
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|
$EndComp
|
|
Wire Wire Line
|
|
1950 6800 2350 6800
|
|
Wire Wire Line
|
|
2350 6800 2700 6800
|
|
Connection ~ 2350 6800
|
|
Connection ~ 2800 6800
|
|
Wire Wire Line
|
|
2350 6500 2350 6300
|
|
Wire Wire Line
|
|
2250 5900 2700 5900
|
|
Wire Wire Line
|
|
2700 5900 2700 5700
|
|
Wire Wire Line
|
|
2800 6800 2800 6900
|
|
$Comp
|
|
L device:R R7
|
|
U 1 1 5CBE4866
|
|
P 2700 6300
|
|
F 0 "R7" H 2770 6346 50 0000 L CNN
|
|
F 1 "54.9K" H 2770 6255 50 0000 L CNN
|
|
F 2 "Capacitors_SMD:C_0805_HandSoldering" V 2630 6300 50 0001 C CNN
|
|
F 3 "" H 2700 6300 50 0000 C CNN
|
|
1 2700 6300
|
|
1 0 0 -1
|
|
$EndComp
|
|
Wire Wire Line
|
|
2700 6150 2700 5900
|
|
Connection ~ 2700 5900
|
|
Wire Wire Line
|
|
2700 6450 2700 6800
|
|
Connection ~ 2700 6800
|
|
Wire Wire Line
|
|
2700 6800 2800 6800
|
|
Text HLabel 5200 4400 0 50 Input ~ 0
|
|
LT_IFEEDBACK
|
|
Text Notes 2650 3050 0 50 ~ 0
|
|
Data Sheet mentions that input surges \ncan fry 22uf input\nbut a 2.2uf ceramic will work \n(keep it close to ic).\n22uf on output should be tantalum.
|
|
$EndSCHEMATC
|