Electronics_Projects_2019/batterycharge_stationdata/pcb/rev1/STC4054_Liion_Charge.sch

EESchema Schematic File Version 4
LIBS:batterystation-cache
EELAYER 26 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 2 9
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L conn:CONN_01X05 P10
U 1 1 5CBBEE8F
P 5100 3900
F 0 "P10" H 5177 3941 50  0000 L CNN
F 1 "STC4054" H 5177 3850 50  0000 L CNN
F 2 "TO_SOT_Packages_SMD:SOT-23-5" H 5100 3900 50  0001 C CNN
F 3 "" H 5100 3900 50  0000 C CNN
	1    5100 3900
	1    0    0    -1  
$EndComp
Text Notes 4550 5650 0    50   ~ 0
STC4054\nNote: Pin 1, is counter-clockwise\nstarting at chrg pin (see data sheet)\n\nNOTE: Double check footprint matches\ndata sheet with numbers.\n\n\n\n4.2 Volts ONLY (not 4.1 - and only ONE cell)\n\nVCC must be always 30mV above BAT or else it will shut down (i.e. if charger is battery powered)
Wire Wire Line
	4900 3700 4600 3700
Text Label 4700 3700 0    50   ~ 0
CHRG
Wire Wire Line
	3750 3800 3750 3950
Wire Wire Line
	3750 3800 4900 3800
$Comp
L power:GND #PWR0106
U 1 1 5CBBF0AE
P 3750 3950
F 0 "#PWR0106" H 3750 3700 50  0001 C CNN
F 1 "GND" H 3755 3777 50  0000 C CNN
F 2 "" H 3750 3950 50  0000 C CNN
F 3 "" H 3750 3950 50  0000 C CNN
	1    3750 3950
	1    0    0    -1  
$EndComp
Text Label 4700 3900 0    50   ~ 0
BAT
Text Label 4700 4000 0    50   ~ 0
PROG
$Comp
L power:+5V #PWR0107
U 1 1 5CBBF145
P 4250 4100
F 0 "#PWR0107" H 4250 3950 50  0001 C CNN
F 1 "+5V" H 4265 4273 50  0000 C CNN
F 2 "" H 4250 4100 50  0000 C CNN
F 3 "" H 4250 4100 50  0000 C CNN
	1    4250 4100
	1    0    0    -1  
$EndComp
Wire Wire Line
	4250 4100 4900 4100
$Comp
L device:LED D1
U 1 1 5CBBF242
P 4600 3300
F 0 "D1" V 4638 3183 50  0000 R CNN
F 1 "LED" V 4547 3183 50  0000 R CNN
F 2 "Capacitors_SMD:C_0805_HandSoldering" H 4600 3300 50  0001 C CNN
F 3 "" H 4600 3300 50  0000 C CNN
	1    4600 3300
	0    -1   -1   0   
$EndComp
Wire Wire Line
	4600 3450 4600 3700
Wire Wire Line
	4600 3150 4600 3000
$Comp
L power:+5V #PWR0108
U 1 1 5CBBF555
P 4600 2350
F 0 "#PWR0108" H 4600 2200 50  0001 C CNN
F 1 "+5V" H 4615 2523 50  0000 C CNN
F 2 "" H 4600 2350 50  0000 C CNN
F 3 "" H 4600 2350 50  0000 C CNN
	1    4600 2350
	1    0    0    -1  
$EndComp
Text Notes 4850 2750 0    50   ~ 0
LED may need resistor, when in\nweak pull down mode.\nAlso has a 10mA pull down mode\nwhere led not needed.
$Comp
L device:R R1
U 1 1 5CBBF689
P 4050 3600
F 0 "R1" V 3843 3600 50  0000 C CNN
F 1 "5K" V 3934 3600 50  0000 C CNN
F 2 "Capacitors_SMD:C_0805_HandSoldering" V 3980 3600 50  0001 C CNN
F 3 "" H 4050 3600 50  0000 C CNN
	1    4050 3600
	0    1    1    0   
$EndComp
Wire Wire Line
	4200 3600 4350 3600
Wire Wire Line
	4500 3600 4500 4000
Wire Wire Line
	4500 4000 4900 4000
Wire Wire Line
	4400 3900 4400 4350
Wire Wire Line
	4400 4350 5550 4350
Wire Wire Line
	4400 3900 4900 3900
Wire Wire Line
	3900 3600 3400 3600
$Comp
L power:GND #PWR0109
U 1 1 5CBBFA1E
P 3400 3600
F 0 "#PWR0109" H 3400 3350 50  0001 C CNN
F 1 "GND" H 3405 3427 50  0000 C CNN
F 2 "" H 3400 3600 50  0000 C CNN
F 3 "" H 3400 3600 50  0000 C CNN
	1    3400 3600
	1    0    0    -1  
$EndComp
Text Notes 3400 3300 0    50   ~ 0
Rprog is calculated by\n(1 / Rval) * 1000\ntherefore\n5K will be 200mA.\n1K would be 1A, etc...
Text HLabel 5950 4350 2    50   Input ~ 0
BAT_LIION_CHRG
$Comp
L device:C C1
U 1 1 5CBBFBC6
P 4250 4250
F 0 "C1" H 4365 4296 50  0000 L CNN
F 1 "1uF" H 4365 4205 50  0000 L CNN
F 2 "Capacitors_SMD:C_0805_HandSoldering" H 4288 4100 50  0001 C CNN
F 3 "" H 4250 4250 50  0000 C CNN
	1    4250 4250
	1    0    0    -1  
$EndComp
Connection ~ 4250 4100
$Comp
L power:GND #PWR0110
U 1 1 5CBBFC6C
P 4250 4400
F 0 "#PWR0110" H 4250 4150 50  0001 C CNN
F 1 "GND" H 4255 4227 50  0000 C CNN
F 2 "" H 4250 4400 50  0000 C CNN
F 3 "" H 4250 4400 50  0000 C CNN
	1    4250 4400
	1    0    0    -1  
$EndComp
Wire Wire Line
	4350 3600 4350 2650
Wire Wire Line
	4350 2650 4000 2650
Connection ~ 4350 3600
Wire Wire Line
	4350 3600 4500 3600
$Comp
L conn:CONN_01X01 P9
U 1 1 5CBC014B
P 3800 2650
F 0 "P9" H 3719 2425 50  0000 C CNN
F 1 "VPROG_TAP" H 3719 2516 50  0000 C CNN
F 2 "Pin_Headers:Pin_Header_Straight_1x01" H 3800 2650 50  0001 C CNN
F 3 "" H 3800 2650 50  0000 C CNN
	1    3800 2650
	-1   0    0    1   
$EndComp
$Comp
L device:R R2
U 1 1 5CBC04AF
P 4600 2850
F 0 "R2" H 4670 2896 50  0000 L CNN
F 1 "1K" H 4670 2805 50  0000 L CNN
F 2 "Capacitors_SMD:C_0805_HandSoldering" V 4530 2850 50  0001 C CNN
F 3 "" H 4600 2850 50  0000 C CNN
	1    4600 2850
	1    0    0    -1  
$EndComp
Wire Wire Line
	4600 2700 4600 2350
$Comp
L device:C C2
U 1 1 5CBC0798
P 5550 4500
F 0 "C2" H 5665 4546 50  0000 L CNN
F 1 "4.7uF" H 5665 4455 50  0000 L CNN
F 2 "Capacitors_SMD:C_0805_HandSoldering" H 5588 4350 50  0001 C CNN
F 3 "" H 5550 4500 50  0000 C CNN
	1    5550 4500
	1    0    0    -1  
$EndComp
Connection ~ 5550 4350
Wire Wire Line
	5550 4350 5950 4350
$Comp
L power:GND #PWR0111
U 1 1 5CBC082A
P 5550 4650
F 0 "#PWR0111" H 5550 4400 50  0001 C CNN
F 1 "GND" H 5555 4477 50  0000 C CNN
F 2 "" H 5550 4650 50  0000 C CNN
F 3 "" H 5550 4650 50  0000 C CNN
	1    5550 4650
	1    0    0    -1  
$EndComp
Text Notes 6150 5100 0    50   ~ 0
This cap may be optional\nNeeded for when battery\ndisconnected, to avoid\nripple.\nUse electrolytic (data sheet\nwants\n0.2-1ohm series resistance)
Text Notes 4150 1800 0    118  ~ 0
ST4054\nLi-Ion 1 cell battery charger
$EndSCHEMATC