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EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 2 2
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L power:+5V #PWR019
U 1 1 6045569E
P 2950 3000
AR Path="/60451830/6045569E" Ref="#PWR019"  Part="1" 
AR Path="/60462D8C/6045569E" Ref="#PWR026"  Part="1" 
AR Path="/60462F0E/6045569E" Ref="#PWR028"  Part="1" 
AR Path="/604630E7/6045569E" Ref="#PWR030"  Part="1" 
AR Path="/604631EE/6045569E" Ref="#PWR032"  Part="1" 
AR Path="/61848F9E/6045569E" Ref="#PWR?"  Part="1" 
AR Path="/6187CECE/6045569E" Ref="#PWR0103"  Part="1" 
F 0 "#PWR0103" H 2950 2850 50  0001 C CNN
F 1 "+5V" H 2965 3173 50  0000 C CNN
F 2 "" H 2950 3000 50  0001 C CNN
F 3 "" H 2950 3000 50  0001 C CNN
	1    2950 3000
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR020
U 1 1 604556A4
P 2950 3600
AR Path="/60451830/604556A4" Ref="#PWR020"  Part="1" 
AR Path="/60462D8C/604556A4" Ref="#PWR027"  Part="1" 
AR Path="/60462F0E/604556A4" Ref="#PWR029"  Part="1" 
AR Path="/604630E7/604556A4" Ref="#PWR031"  Part="1" 
AR Path="/604631EE/604556A4" Ref="#PWR033"  Part="1" 
AR Path="/61848F9E/604556A4" Ref="#PWR?"  Part="1" 
AR Path="/6187CECE/604556A4" Ref="#PWR0104"  Part="1" 
F 0 "#PWR0104" H 2950 3350 50  0001 C CNN
F 1 "GND" H 2955 3427 50  0000 C CNN
F 2 "" H 2950 3600 50  0001 C CNN
F 3 "" H 2950 3600 50  0001 C CNN
	1    2950 3600
	1    0    0    -1  
$EndComp
$Comp
L Device:L L1
U 1 1 604556AB
P 3400 3100
AR Path="/60451830/604556AB" Ref="L1"  Part="1" 
AR Path="/60462D8C/604556AB" Ref="L3"  Part="1" 
AR Path="/60462F0E/604556AB" Ref="L5"  Part="1" 
AR Path="/604630E7/604556AB" Ref="L7"  Part="1" 
AR Path="/604631EE/604556AB" Ref="L9"  Part="1" 
AR Path="/61848F9E/604556AB" Ref="L?"  Part="1" 
AR Path="/6187CECE/604556AB" Ref="L1"  Part="1" 
F 0 "L1" V 3590 3100 50  0000 C CNN
F 1 "10u" V 3499 3100 50  0000 C CNN
F 2 "Inductor_SMD:L_1008_2520Metric_Pad1.43x2.20mm_HandSolder" H 3400 3100 50  0001 C CNN
F 3 "~" H 3400 3100 50  0001 C CNN
	1    3400 3100
	0    -1   -1   0   
$EndComp
$Comp
L Device:C C5
U 1 1 604556B1
P 2950 3300
AR Path="/60451830/604556B1" Ref="C5"  Part="1" 
AR Path="/60462D8C/604556B1" Ref="C16"  Part="1" 
AR Path="/60462F0E/604556B1" Ref="C23"  Part="1" 
AR Path="/604630E7/604556B1" Ref="C30"  Part="1" 
AR Path="/604631EE/604556B1" Ref="C37"  Part="1" 
AR Path="/61848F9E/604556B1" Ref="C?"  Part="1" 
AR Path="/6187CECE/604556B1" Ref="C1"  Part="1" 
F 0 "C1" H 3065 3346 50  0000 L CNN
F 1 "10u 50V" H 3065 3255 50  0000 L CNN
F 2 "Capacitor_SMD:C_1210_3225Metric_Pad1.33x2.70mm_HandSolder" H 2988 3150 50  0001 C CNN
F 3 "~" H 2950 3300 50  0001 C CNN
	1    2950 3300
	1    0    0    -1  
$EndComp
$Comp
L Device:C C6
U 1 1 604556B7
P 3800 3300
AR Path="/60451830/604556B7" Ref="C6"  Part="1" 
AR Path="/60462D8C/604556B7" Ref="C17"  Part="1" 
AR Path="/60462F0E/604556B7" Ref="C24"  Part="1" 
AR Path="/604630E7/604556B7" Ref="C31"  Part="1" 
AR Path="/604631EE/604556B7" Ref="C38"  Part="1" 
AR Path="/61848F9E/604556B7" Ref="C?"  Part="1" 
AR Path="/6187CECE/604556B7" Ref="C2"  Part="1" 
F 0 "C2" H 3915 3346 50  0000 L CNN
F 1 "4.7u 50V" H 3915 3255 50  0000 L CNN
F 2 "Capacitor_SMD:C_1210_3225Metric_Pad1.33x2.70mm_HandSolder" H 3838 3150 50  0001 C CNN
F 3 "~" H 3800 3300 50  0001 C CNN
	1    3800 3300
	1    0    0    -1  
$EndComp
Wire Wire Line
	3550 3100 3800 3100
Wire Wire Line
	3800 3100 3800 3150
Connection ~ 3800 3100
Wire Wire Line
	3800 3500 3800 3450
Wire Wire Line
	3800 3500 2950 3500
Wire Wire Line
	2950 3500 2950 3450
Connection ~ 3800 3500
Wire Wire Line
	2950 3500 2950 3600
Connection ~ 2950 3500
Wire Wire Line
	2950 3150 2950 3100
Wire Wire Line
	2950 3100 3250 3100
Wire Wire Line
	2950 3000 2950 3100
Connection ~ 2950 3100
$Comp
L Device:C C7
U 1 1 604556CC
P 5400 3300
AR Path="/60451830/604556CC" Ref="C7"  Part="1" 
AR Path="/60462D8C/604556CC" Ref="C18"  Part="1" 
AR Path="/60462F0E/604556CC" Ref="C25"  Part="1" 
AR Path="/604630E7/604556CC" Ref="C32"  Part="1" 
AR Path="/604631EE/604556CC" Ref="C39"  Part="1" 
AR Path="/61848F9E/604556CC" Ref="C?"  Part="1" 
AR Path="/6187CECE/604556CC" Ref="C4"  Part="1" 
F 0 "C4" H 5515 3346 50  0000 L CNN
F 1 "1u" H 5515 3255 50  0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder" H 5438 3150 50  0001 C CNN
F 3 "~" H 5400 3300 50  0001 C CNN
	1    5400 3300
	1    0    0    -1  
$EndComp
$Comp
L Device:C C9
U 1 1 604556DB
P 7950 3300
AR Path="/60451830/604556DB" Ref="C9"  Part="1" 
AR Path="/60462D8C/604556DB" Ref="C20"  Part="1" 
AR Path="/60462F0E/604556DB" Ref="C27"  Part="1" 
AR Path="/604630E7/604556DB" Ref="C34"  Part="1" 
AR Path="/604631EE/604556DB" Ref="C41"  Part="1" 
AR Path="/61848F9E/604556DB" Ref="C?"  Part="1" 
AR Path="/6187CECE/604556DB" Ref="C6"  Part="1" 
F 0 "C6" H 8065 3346 50  0000 L CNN
F 1 "100n" H 8065 3255 50  0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder" H 7988 3150 50  0001 C CNN
F 3 "~" H 7950 3300 50  0001 C CNN
	1    7950 3300
	1    0    0    -1  
$EndComp
Wire Wire Line
	7950 3100 7950 3150
Wire Wire Line
	7950 3450 7950 3500
Wire Wire Line
	5400 3150 5400 3100
Connection ~ 5400 3100
Wire Wire Line
	5400 3450 5400 3500
Connection ~ 5400 3500
Wire Wire Line
	5400 3500 5750 3500
Wire Wire Line
	5750 3150 5750 3100
Wire Wire Line
	5750 3100 5400 3100
Wire Wire Line
	5750 3450 5750 3500
Text HLabel 10500 3900 2    50   Output ~ 0
GNDISO
Text HLabel 10500 3100 2    50   Output ~ 0
VISO
$Comp
L Device:CP C10
U 1 1 608E2F59
P 9900 3500
AR Path="/60451830/608E2F59" Ref="C10"  Part="1" 
AR Path="/60462D8C/608E2F59" Ref="C21"  Part="1" 
AR Path="/60462F0E/608E2F59" Ref="C28"  Part="1" 
AR Path="/604630E7/608E2F59" Ref="C35"  Part="1" 
AR Path="/604631EE/608E2F59" Ref="C42"  Part="1" 
AR Path="/608E2F59" Ref="C?"  Part="1" 
AR Path="/61848F9E/608E2F59" Ref="C?"  Part="1" 
AR Path="/6187CECE/608E2F59" Ref="C7"  Part="1" 
F 0 "C7" H 10018 3546 50  0000 L CNN
F 1 "100u" H 10018 3455 50  0000 L CNN
F 2 "Capacitor_SMD:CP_Elec_6.3x5.8" H 9938 3350 50  0001 C CNN
F 3 "~" H 9900 3500 50  0001 C CNN
	1    9900 3500
	1    0    0    -1  
$EndComp
$Comp
L Device:D_Zener D2
U 1 1 60953C54
P 5750 3300
AR Path="/60451830/60953C54" Ref="D2"  Part="1" 
AR Path="/60462D8C/60953C54" Ref="D3"  Part="1" 
AR Path="/60462F0E/60953C54" Ref="D4"  Part="1" 
AR Path="/604630E7/60953C54" Ref="D5"  Part="1" 
AR Path="/604631EE/60953C54" Ref="D6"  Part="1" 
AR Path="/61848F9E/60953C54" Ref="D?"  Part="1" 
AR Path="/6187CECE/60953C54" Ref="D1"  Part="1" 
F 0 "D1" V 5704 3380 50  0000 L CNN
F 1 "MMSZ16" V 5795 3380 50  0000 L CNN
F 2 "Diode_SMD:D_SOD-123" H 5750 3300 50  0001 C CNN
F 3 "~" H 5750 3300 50  0001 C CNN
	1    5750 3300
	0    1    1    0   
$EndComp
$Comp
L Converter_DCDC:RK-0515S U5
U 1 1 606E14CF
P 4800 3300
AR Path="/60451830/606E14CF" Ref="U5"  Part="1" 
AR Path="/60462D8C/606E14CF" Ref="U8"  Part="1" 
AR Path="/60462F0E/606E14CF" Ref="U10"  Part="1" 
AR Path="/604630E7/606E14CF" Ref="U12"  Part="1" 
AR Path="/604631EE/606E14CF" Ref="U14"  Part="1" 
AR Path="/606E14CF" Ref="U?"  Part="1" 
AR Path="/61848F9E/606E14CF" Ref="U?"  Part="1" 
AR Path="/6187CECE/606E14CF" Ref="U1"  Part="1" 
F 0 "U1" H 4800 3767 50  0000 C CNN
F 1 "RK-0515S" H 4800 3676 50  0000 C CNN
F 2 "footprints:Converter_DCDC_RECOM_RK-xxxxS_Single_THT" H 4800 3300 50  0001 C CNN
F 3 "https://recom-power.com/pdf/Econoline/RK_RH.pdf" H 4800 3300 50  0001 C CNN
	1    4800 3300
	1    0    0    -1  
$EndComp
Wire Wire Line
	5200 3100 5250 3100
Wire Wire Line
	5200 3500 5400 3500
Wire Wire Line
	3800 3100 4300 3100
Wire Wire Line
	3800 3500 4400 3500
$Comp
L Device:C C4
U 1 1 606E2A7E
P 4800 2550
AR Path="/60451830/606E2A7E" Ref="C4"  Part="1" 
AR Path="/60462D8C/606E2A7E" Ref="C15"  Part="1" 
AR Path="/60462F0E/606E2A7E" Ref="C22"  Part="1" 
AR Path="/604630E7/606E2A7E" Ref="C29"  Part="1" 
AR Path="/604631EE/606E2A7E" Ref="C36"  Part="1" 
AR Path="/61848F9E/606E2A7E" Ref="C?"  Part="1" 
AR Path="/6187CECE/606E2A7E" Ref="C3"  Part="1" 
F 0 "C3" V 4548 2550 50  0000 C CNN
F 1 "2n2" V 4639 2550 50  0000 C CNN
F 2 "Capacitor_THT:C_Rect_L13.0mm_W4.0mm_P10.00mm_FKS3_FKP3_MKS4" H 4838 2400 50  0001 C CNN
F 3 "~" H 4800 2550 50  0001 C CNN
	1    4800 2550
	0    1    1    0   
$EndComp
Wire Wire Line
	4650 2550 4300 2550
Wire Wire Line
	4300 2550 4300 3100
Connection ~ 4300 3100
Wire Wire Line
	4300 3100 4400 3100
Wire Wire Line
	4950 2550 5250 2550
Wire Wire Line
	5250 2550 5250 3100
Connection ~ 5250 3100
Wire Wire Line
	5250 3100 5400 3100
Text Notes 3000 2150 0    50   ~ 0
EMI filter based on datasheet values,\nslightly tweaked to whats available (10u instead of 12u)
Text Notes 3150 2850 0    50   ~ 0
LQH2HPN100MJRL (10uH)
$Comp
L Regulator_Linear:LM2931-ADJ_SO8 U4
U 1 1 609D1842
P 8850 3200
AR Path="/60451830/609D1842" Ref="U4"  Part="1" 
AR Path="/60462D8C/609D1842" Ref="U7"  Part="1" 
AR Path="/60462F0E/609D1842" Ref="U9"  Part="1" 
AR Path="/604630E7/609D1842" Ref="U11"  Part="1" 
AR Path="/604631EE/609D1842" Ref="U13"  Part="1" 
AR Path="/609D1842" Ref="U4"  Part="1" 
AR Path="/61848F9E/609D1842" Ref="U?"  Part="1" 
AR Path="/6187CECE/609D1842" Ref="U2"  Part="1" 
F 0 "U2" H 8850 3542 50  0000 C CNN
F 1 "LM2931ACDR2G" H 8850 3451 50  0000 C CNN
F 2 "Package_SO:SOIC-8_3.9x4.9mm_P1.27mm" H 8850 3425 50  0001 C CIN
F 3 "http://www.ti.com/lit/ds/symlink/lm2931-n.pdf" H 8850 3200 50  0001 C CNN
	1    8850 3200
	1    0    0    -1  
$EndComp
Wire Wire Line
	8450 3100 7950 3100
Wire Wire Line
	8450 3200 8350 3200
Wire Wire Line
	8350 3200 8350 3500
Wire Wire Line
	8350 3500 7950 3500
$Comp
L Device:R R2
U 1 1 609D7E10
P 9500 3300
AR Path="/60451830/609D7E10" Ref="R2"  Part="1" 
AR Path="/60462D8C/609D7E10" Ref="R6"  Part="1" 
AR Path="/60462F0E/609D7E10" Ref="R8"  Part="1" 
AR Path="/604630E7/609D7E10" Ref="R10"  Part="1" 
AR Path="/604631EE/609D7E10" Ref="R12"  Part="1" 
AR Path="/61848F9E/609D7E10" Ref="R?"  Part="1" 
AR Path="/6187CECE/609D7E10" Ref="R1"  Part="1" 
F 0 "R1" H 9570 3346 50  0000 L CNN
F 1 "1k" H 9570 3255 50  0000 L CNN
F 2 "Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder" V 9430 3300 50  0001 C CNN
F 3 "~" H 9500 3300 50  0001 C CNN
	1    9500 3300
	1    0    0    -1  
$EndComp
$Comp
L Device:R R3
U 1 1 609D895A
P 9500 3700
AR Path="/60451830/609D895A" Ref="R3"  Part="1" 
AR Path="/60462D8C/609D895A" Ref="R7"  Part="1" 
AR Path="/60462F0E/609D895A" Ref="R9"  Part="1" 
AR Path="/604630E7/609D895A" Ref="R11"  Part="1" 
AR Path="/604631EE/609D895A" Ref="R13"  Part="1" 
AR Path="/61848F9E/609D895A" Ref="R?"  Part="1" 
AR Path="/6187CECE/609D895A" Ref="R2"  Part="1" 
F 0 "R2" H 9570 3746 50  0000 L CNN
F 1 "10k" H 9570 3655 50  0000 L CNN
F 2 "Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder" V 9430 3700 50  0001 C CNN
F 3 "~" H 9500 3700 50  0001 C CNN
	1    9500 3700
	1    0    0    -1  
$EndComp
Wire Wire Line
	9250 3100 9500 3100
Wire Wire Line
	9500 3100 9500 3150
Wire Wire Line
	9250 3300 9350 3300
Wire Wire Line
	9350 3300 9350 3500
Wire Wire Line
	9350 3500 9500 3500
Wire Wire Line
	9500 3500 9500 3450
Wire Wire Line
	9500 3500 9500 3550
Connection ~ 9500 3500
Text Notes 9300 3000 0    50   ~ 0
Reference Voltage: 1.14V-1.26V\nVout = 12.54-13.86V
Wire Wire Line
	8350 3500 8350 3600
Wire Wire Line
	8350 3600 8850 3600
Wire Wire Line
	8850 3600 8850 3500
Connection ~ 8350 3500
Wire Wire Line
	8850 3600 8850 3900
Wire Wire Line
	8850 3900 9500 3900
Wire Wire Line
	9500 3900 9500 3850
Connection ~ 8850 3600
Wire Wire Line
	9500 3100 9900 3100
Connection ~ 9500 3100
Wire Wire Line
	9900 3650 9900 3900
Wire Wire Line
	9900 3900 9500 3900
Connection ~ 9500 3900
Connection ~ 9900 3100
Wire Wire Line
	9900 3100 9900 3350
Connection ~ 9900 3900
Text Notes 8900 4700 0    50   ~ 0
output cap determines stability of the\nregulator. Exact values are manufacturer specific\n\nUsing ON Semi LM2931ACDR2G ESR < 0.5Ohm.\nSmaller reduces noise.\nSome (e.g. TI) also have a minimal ESR\n\nE.g. Panasonic EEEFT1V101AP fits (~~300mOhm)
Text Notes 8250 2650 0    50   ~ 0
LDO with high PSRR (~~60dB at 100kHz)\nto reduce switching mode spikes
Wire Wire Line
	6500 3200 6200 3200
Wire Wire Line
	6200 3100 5750 3100
Wire Wire Line
	6200 3100 6200 3200
Connection ~ 5750 3100
Wire Wire Line
	5750 3500 6200 3500
Wire Wire Line
	6200 3500 6200 3400
Wire Wire Line
	6200 3400 6500 3400
Connection ~ 5750 3500
Wire Wire Line
	6900 3200 7200 3200
Wire Wire Line
	7200 3200 7200 3100
Wire Wire Line
	7200 3100 7400 3100
Connection ~ 7950 3100
Wire Wire Line
	6900 3400 7200 3400
Wire Wire Line
	7200 3400 7200 3500
Wire Wire Line
	7200 3500 7400 3500
Connection ~ 7950 3500
$Comp
L Device:C C?
U 1 1 618866C7
P 7400 3300
AR Path="/60451830/618866C7" Ref="C?"  Part="1" 
AR Path="/60462D8C/618866C7" Ref="C?"  Part="1" 
AR Path="/60462F0E/618866C7" Ref="C?"  Part="1" 
AR Path="/604630E7/618866C7" Ref="C?"  Part="1" 
AR Path="/604631EE/618866C7" Ref="C?"  Part="1" 
AR Path="/61848F9E/618866C7" Ref="C?"  Part="1" 
AR Path="/6187CECE/618866C7" Ref="C5"  Part="1" 
F 0 "C5" H 7515 3346 50  0000 L CNN
F 1 "10u" H 7515 3255 50  0000 L CNN
F 2 "Capacitor_SMD:C_1210_3225Metric_Pad1.33x2.70mm_HandSolder" H 7438 3150 50  0001 C CNN
F 3 "~" H 7400 3300 50  0001 C CNN
	1    7400 3300
	1    0    0    -1  
$EndComp
Wire Wire Line
	7400 3150 7400 3100
Connection ~ 7400 3100
Wire Wire Line
	7400 3100 7950 3100
Wire Wire Line
	7400 3450 7400 3500
Connection ~ 7400 3500
Wire Wire Line
	7400 3500 7950 3500
$Comp
L Device:EMI_Filter_LL_1423 FL1
U 1 1 618A469F
P 6700 3300
F 0 "FL1" H 6700 2975 50  0000 C CNN
F 1 "EMI_Filter_LL_1423" H 6700 3066 50  0000 C CNN
F 2 "Inductor_SMD:L_CommonMode_Wuerth_WE-SL2" H 6700 3050 50  0001 C CNN
F 3 "~" V 6700 3340 50  0001 C CNN
	1    6700 3300
	1    0    0    1   
$EndComp
Wire Wire Line
	9900 3100 10500 3100
Wire Wire Line
	9900 3900 10500 3900
$EndSCHEMATC