EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 4 6
Title "Battery / power management module"
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
Connection ~ 5150 3250
Wire Wire Line
	5050 3250 5150 3250
Connection ~ 5150 3850
Connection ~ 4550 3850
Wire Wire Line
	4550 3850 5150 3850
Wire Wire Line
	5150 3350 5150 3250
Wire Wire Line
	5150 3350 5950 3350
Wire Wire Line
	5150 3250 5500 3250
$Comp
L Device:R R13
U 1 1 5F9A17DA
P 5500 3850
F 0 "R13" H 5570 3896 50  0000 L CNN
F 1 "100k" H 5570 3805 50  0000 L CNN
F 2 "Resistor_SMD:R_0805_2012Metric" V 5430 3850 50  0001 C CNN
F 3 "~" H 5500 3850 50  0001 C CNN
	1    5500 3850
	0    -1   -1   0   
$EndComp
Wire Wire Line
	5800 3450 5950 3450
Text HLabel 6750 3450 2    50   Input ~ 0
GND
Wire Wire Line
	3450 4450 3600 4450
$Comp
L Device:R R11
U 1 1 5F9F96F7
P 3600 4600
F 0 "R11" H 3670 4646 50  0000 L CNN
F 1 "10k" H 3670 4555 50  0000 L CNN
F 2 "Resistor_SMD:R_0805_2012Metric" V 3530 4600 50  0001 C CNN
F 3 "~" H 3600 4600 50  0001 C CNN
	1    3600 4600
	1    0    0    -1  
$EndComp
Text HLabel 1800 3850 0    50   Input ~ 0
VBUS
$Comp
L Device:Battery_Cell BT1
U 1 1 5F9ED2E0
P 4550 4050
F 0 "BT1" H 4668 4146 50  0000 L CNN
F 1 "Battery_Cell" H 4668 4055 50  0000 L CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical" V 4550 4110 50  0001 C CNN
F 3 "~" V 4550 4110 50  0001 C CNN
	1    4550 4050
	1    0    0    -1  
$EndComp
Wire Wire Line
	5950 3250 5800 3250
$Comp
L Device:L L1
U 1 1 5F9DD124
P 5650 3250
F 0 "L1" V 5840 3250 50  0000 C CNN
F 1 "2.2uH" V 5749 3250 50  0000 C CNN
F 2 "Inductor_SMD:L_0805_2012Metric" H 5650 3250 50  0001 C CNN
F 3 "~" H 5650 3250 50  0001 C CNN
	1    5650 3250
	0    -1   -1   0   
$EndComp
Text HLabel 4750 3250 0    50   Input ~ 0
GND
$Comp
L Device:C C14
U 1 1 5F9CDBC9
P 4900 3250
F 0 "C14" H 5015 3296 50  0000 L CNN
F 1 "10uF" H 5015 3205 50  0000 L CNN
F 2 "Capacitor_SMD:C_0805_2012Metric" H 4938 3100 50  0001 C CNN
F 3 "~" H 4900 3250 50  0001 C CNN
	1    4900 3250
	0    1    1    0   
$EndComp
NoConn ~ 3450 4150
Text HLabel 6350 3650 3    50   Input ~ 0
GND
Text HLabel 4550 4150 3    50   Input ~ 0
GND
Wire Wire Line
	4000 3850 4550 3850
Wire Wire Line
	2100 3850 2400 3850
Connection ~ 2100 3850
$Comp
L Device:C C12
U 1 1 5F9B0FB3
P 2100 4000
F 0 "C12" H 2215 4046 50  0000 L CNN
F 1 "4.7uF" H 2215 3955 50  0000 L CNN
F 2 "Capacitor_SMD:C_0805_2012Metric" H 2138 3850 50  0001 C CNN
F 3 "~" H 2100 4000 50  0001 C CNN
	1    2100 4000
	1    0    0    -1  
$EndComp
Connection ~ 4000 3850
$Comp
L Device:C C13
U 1 1 5F9B0C5E
P 4000 4000
F 0 "C13" H 4115 4046 50  0000 L CNN
F 1 "4.7uF" H 4115 3955 50  0000 L CNN
F 2 "Capacitor_SMD:C_0805_2012Metric" H 4038 3850 50  0001 C CNN
F 3 "~" H 4000 4000 50  0001 C CNN
	1    4000 4000
	1    0    0    -1  
$EndComp
Wire Wire Line
	1800 3850 2100 3850
Wire Wire Line
	3700 3850 4000 3850
NoConn ~ 3450 4300
Text HLabel 2100 4150 3    50   Input ~ 0
GND
Text HLabel 4000 4150 3    50   Input ~ 0
GND
Text HLabel 2650 4450 0    50   Input ~ 0
GND
Text HLabel 3600 4750 3    50   Input ~ 0
GND
Wire Wire Line
	2400 3850 2650 3850
Connection ~ 2400 3850
Wire Wire Line
	2400 4000 2400 3850
Wire Wire Line
	2650 4000 2400 4000
NoConn ~ 2650 4300
NoConn ~ 2650 4150
Connection ~ 3700 3850
Wire Wire Line
	3700 3850 3450 3850
Wire Wire Line
	3700 4000 3700 3850
Wire Wire Line
	3450 4000 3700 4000
$Comp
L custom_lib:MCP73833 U4
U 1 1 5F984F0B
P 3050 4400
F 0 "U4" H 3050 5166 47  0000 C CNN
F 1 "MCP73833" H 3050 5079 47  0000 C CNN
F 2 "Package_SO:MSOP-10-1EP_3x3mm_P0.5mm_EP1.68x1.88mm" H 3050 4250 50  0001 C CNN
F 3 "http://ww1.microchip.com/downloads/en/DeviceDoc/22005b.pdf" H 3050 4250 50  0001 C CNN
	1    3050 4400
	1    0    0    -1  
$EndComp
Wire Wire Line
	5150 3350 5150 3850
Connection ~ 5150 3350
Wire Wire Line
	5650 3850 5800 3850
Wire Wire Line
	5800 3450 5800 3850
Connection ~ 5800 3850
Wire Wire Line
	5150 3850 5350 3850
Wire Wire Line
	8350 4150 8150 4150
Text HLabel 9700 4150 2    50   Output ~ 0
+3V3
Wire Wire Line
	9050 4150 9400 4150
$Comp
L Device:C C17
U 1 1 5FA42792
P 8000 4100
F 0 "C17" H 8115 4146 50  0000 L CNN
F 1 "1uF" H 8115 4055 50  0000 L CNN
F 2 "Capacitor_SMD:C_0805_2012Metric" H 8038 3950 50  0001 C CNN
F 3 "~" H 8000 4100 50  0001 C CNN
	1    8000 4100
	-1   0    0    1   
$EndComp
Text HLabel 8000 4450 3    50   Input ~ 0
GND
$Comp
L Device:C C18
U 1 1 5FA474C0
P 9400 4300
F 0 "C18" H 9515 4346 50  0000 L CNN
F 1 "1uF" H 9515 4255 50  0000 L CNN
F 2 "Capacitor_SMD:C_0805_2012Metric" H 9438 4150 50  0001 C CNN
F 3 "~" H 9400 4300 50  0001 C CNN
	1    9400 4300
	1    0    0    -1  
$EndComp
Text HLabel 9400 4550 3    50   Input ~ 0
GND
Connection ~ 9400 4150
Wire Wire Line
	9400 4150 9700 4150
Wire Wire Line
	6750 3250 7300 3250
Wire Wire Line
	8150 3250 8550 3250
Connection ~ 8150 3250
Wire Wire Line
	7750 3250 8150 3250
$Comp
L Device:C C15
U 1 1 5F9C6681
P 7300 3400
F 0 "C15" H 7415 3446 50  0000 L CNN
F 1 "10uF" H 7415 3355 50  0000 L CNN
F 2 "Capacitor_SMD:C_0805_2012Metric" H 7338 3250 50  0001 C CNN
F 3 "~" H 7300 3400 50  0001 C CNN
	1    7300 3400
	1    0    0    -1  
$EndComp
Connection ~ 7300 3250
Text HLabel 7300 3550 3    50   Input ~ 0
GND
Text HLabel 7300 2650 1    50   Input ~ 0
VBUS
Text HLabel 8550 3250 2    50   Output ~ 0
+5V
$Comp
L Device:C C16
U 1 1 5F9910B5
P 7750 3400
F 0 "C16" H 7865 3446 50  0000 L CNN
F 1 "10uF" H 7865 3355 50  0000 L CNN
F 2 "Capacitor_SMD:C_0805_2012Metric" H 7788 3250 50  0001 C CNN
F 3 "~" H 7750 3400 50  0001 C CNN
	1    7750 3400
	1    0    0    -1  
$EndComp
Text HLabel 7750 3550 3    50   Input ~ 0
GND
Wire Wire Line
	7300 3250 7750 3250
Connection ~ 7750 3250
Wire Wire Line
	7300 3050 7300 3250
$Comp
L custom_lib:TPS61099x U5
U 1 1 5FBE4D49
P 6350 3350
F 0 "U5" H 6350 3715 50  0000 C CNN
F 1 "TPS61099x" H 6350 3624 50  0000 C CNN
F 2 "Package_SON:WSON-6-1EP_2x2mm_P0.65mm_EP1x1.6mm" H 6350 3800 50  0001 C CNN
F 3 "https://www.ti.com/lit/ds/symlink/tps61099.pdf" H 5500 3950 50  0001 C CNN
	1    6350 3350
	1    0    0    -1  
$EndComp
$Comp
L power:PWR_FLAG #BT01
U 1 1 5FC03953
P 4550 3850
F 0 "#BT01" H 4550 3925 50  0001 C CNN
F 1 "PWR_FLAG" H 4550 4023 50  0000 C CNN
F 2 "" H 4550 3850 50  0001 C CNN
F 3 "~" H 4550 3850 50  0001 C CNN
	1    4550 3850
	1    0    0    -1  
$EndComp
$Comp
L custom_lib:LP5912-3.3DRVT U6
U 1 1 5FC23FD4
P 8700 4250
F 0 "U6" H 8700 4615 50  0000 C CNN
F 1 "LP5912-3.3DRVT" H 8700 4524 50  0000 C CNN
F 2 "Package_SON:WSON-6-1EP_2x2mm_P0.65mm_EP1x1.6mm" H 7950 4750 50  0001 C CNN
F 3 "https://www.ti.com/lit/ds/symlink/lp5912.pdf" H 7950 4750 50  0001 C CNN
	1    8700 4250
	1    0    0    -1  
$EndComp
Wire Wire Line
	8150 4150 8150 4250
Wire Wire Line
	8150 4250 8350 4250
Connection ~ 8150 4150
Wire Wire Line
	8150 3250 8150 3850
Wire Wire Line
	8000 4250 8000 4350
Wire Wire Line
	8000 4350 8350 4350
Connection ~ 8000 4350
Wire Wire Line
	8000 4350 8000 4450
Wire Wire Line
	8000 3950 8000 3850
Wire Wire Line
	8000 3850 8150 3850
Connection ~ 8150 3850
Wire Wire Line
	8150 3850 8150 4150
Wire Wire Line
	9400 4450 9400 4550
Connection ~ 9400 4450
Wire Wire Line
	9050 4450 9050 4350
Wire Wire Line
	9050 4450 9400 4450
Wire Wire Line
	5800 3850 5800 4250
$Comp
L Device:Q_NJFET_DGS Q1
U 1 1 5F98EB49
P 5700 4450
F 0 "Q1" H 5891 4496 50  0000 L CNN
F 1 "Q_NJFET_DGS" H 5891 4405 50  0000 L CNN
F 2 "Package_TO_SOT_SMD:SOT-23" H 5900 4550 50  0001 C CNN
F 3 "~" H 5700 4450 50  0001 C CNN
	1    5700 4450
	1    0    0    -1  
$EndComp
$Comp
L Device:R R12
U 1 1 5F9A09FB
P 5350 4450
F 0 "R12" H 5420 4496 50  0000 L CNN
F 1 "100k" H 5420 4405 50  0000 L CNN
F 2 "Resistor_SMD:R_0805_2012Metric" V 5280 4450 50  0001 C CNN
F 3 "~" H 5350 4450 50  0001 C CNN
	1    5350 4450
	0    -1   -1   0   
$EndComp
Text HLabel 5200 4450 0    50   Input ~ 0
VBUS
Text HLabel 5800 4650 3    50   Input ~ 0
GND
$Comp
L Device:Q_NJFET_DGS Q2
U 1 1 5FB3645A
P 7200 2850
F 0 "Q2" H 7391 2896 50  0000 L CNN
F 1 "Q_NJFET_DGS" H 7391 2805 50  0000 L CNN
F 2 "Package_TO_SOT_SMD:SOT-23" H 7400 2950 50  0001 C CNN
F 3 "~" H 7200 2850 50  0001 C CNN
	1    7200 2850
	1    0    0    -1  
$EndComp
$Comp
L Device:R R16
U 1 1 5FB36EC3
P 6850 2850
F 0 "R16" H 6920 2896 50  0000 L CNN
F 1 "100k" H 6920 2805 50  0000 L CNN
F 2 "Resistor_SMD:R_0805_2012Metric" V 6780 2850 50  0001 C CNN
F 3 "~" H 6850 2850 50  0001 C CNN
	1    6850 2850
	0    -1   -1   0   
$EndComp
Text HLabel 6700 2850 0    50   Input ~ 0
VBUS
$EndSCHEMATC