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Doc version beta du PCB 2025

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# PCB alimentation
Mis à jour pour la version [v2-alpha.1](https://github.com/modelec/pcb_puissance/releases/tag/v2-alpha-1)
Mis à jour pour la version [v2-beta](https://github.com/modelec/pcb_puissance/releases/tag/v2-beta)
## Introduction
Le PCB alimentation 2025 du robot fait le lien entre les différentes sources d'alimentation et les composants du robot.
La release concernée par cette documentation est ici : [Release](https://github.com/modelec/pcb_puissance/releases/tag/v2-alpha-1)
La release concernée par cette documentation est ici : [Release](https://github.com/modelec/pcb_puissance/releases/tag/v2-beta)
Les fonctionnalités proposées sont :
- Jusqu'à 3 sources, hot-pluggable
- Protection contre les reverse voltages en entrée
- Sélection de la meilleure source, protection contre under et overvoltage
- Chute de tension limitée lors du changement de source
- Protection contre les tension inverses en entrée
- Sélection de la meilleure source, protection contre sur et sous tensions
- Coupe circuit général et arrêt d'urgence uniquement sur certaines sorties
- Convertisseurs de tension désactivés par défaut, pilotés par STM32
- Mesures de tension/courant/puissances sur chaque sortie
- Mesure du taux de charge des batteries connectées
- Mesure de la température de la carte
- Protocole USB-PD sur la sortie 5,15V
- Remontée d'info & GPIO
- Remontée d'info, GPIOs, STM32 programmable et débugable via SWD
- Buzzer désactivable via un switch
## Besoins
Les besoins qui nous ont amené à réaliser un PCB alimentation pour le robot sont :
@@ -108,7 +110,7 @@ Le PCB alimentation a été réalisé dans le but d'implémenter les spécificat
## Schéma électrique
### Principe général
![Schema electrique principe général](../../img/schema_global.svg){ width="800" }
![Schema electrique principe général](../../img/pcb/schema_global.svg){ width="800" }
Ce schéma expose le principe général des circuits présents sur la carte.
- 3 entrées (une pour secteur et deux pour batteries LiPo3S)
- Fusibles en entrée et avant chaque convertisseur de tension traco power
@@ -117,7 +119,7 @@ Ce schéma expose le principe général des circuits présents sur la carte.
- USB-PD, buzzer, STM32, coupe circuit
- Boutons d'arrêt d'urgence sur les convertisseurs concernés.
### Architecture générale
![Schema electrique page principale](../../img/pcb_puissance_2025.svg){ width="800" }
![Schema electrique page principale](../../img/pcb/pcb_puissance_2025.svg){ width="800" }
De gauche à droite:
- 3 entrées d'alimentation
- Entrée coupe circuit (EN) en Normally Open
@@ -125,7 +127,7 @@ De gauche à droite:
- Convertisseurs de tension
- Trous de montage
### Sous-partie sélection de la tension d'entrée
![Schema electrique selection entrée](../../img/pcb_puissance_2025-power_input_selector.svg){ width="800" }
![Schema electrique selection entrée](../../img/pcb/pcb_puissance_2025-power_input_selector.svg){ width="800" }
De gauche à droite:
- Mesure de courant/tension sur les deux entrée destinées aux batteries
- Résistances pour régler les seuils d'overvoltage et d'undervoltage (voir documentation du LTC4417)
@@ -136,7 +138,7 @@ Documentations :
Concepteur avec paramètres utilisés : [tools.analog.com](https://tools.analog.com/en/toolbox/LTC4417/#vin_v1=22&tol_v1=45&vin_v2=13&tol_v2=5&vin_v3=13&tol_v3=5&uv_v1=10&ov_v1=35&uv_v2=11.15&ov_v2=35&uv_v3=11.15&ov_v3=35&hys_config=int&idiv=10&rsource_v2=0.03&rsource_v3=0.03&fet_selection=SUD50P06-15&fet_selection_ch2=SUD50P06-15&fet_selection_ch3=SUD50P06-15&rsource_v1=0.03&esr=0.018&rds_on=20&rds_on_ch2=20&rds_on_ch3=20&use_custom_fet=false&vdroop_supply=1&vdroop_out=0.5&iload=10&inrush_target=10&inrush_target_ch2=10&inrush_target_ch3=10&cout_act=1000&use_std_inrush=true&topology_ch1=3rt&use_std_ch1=true&topology_ch2=3rt&use_std_ch2=true&topology_ch3=3rt&use_std_ch3=true)
### Sous-partie sorties
![Schema electrique sorties](../../img/pcb_puissance_2025-Output_Connectors.svg){ width="800" }
![Schema electrique sorties](../../img/pcb/pcb_puissance_2025-Output_Connectors.svg){ width="800" }
Mesure de courant/tension pour chaque zone. Controlleur USB-PD supplémentaire pour la sortie 5,15V.
Documentations :
@@ -144,7 +146,7 @@ Documentations :
- [TCPP02-M18](https://www.st.com/resource/en/datasheet/tcpp02-m18.pdf)
- [Résistances L4CL](https://www.littelfuse.com/assetdocs/littelfuse_resistor_l4cl_datasheet.pdf?assetguid=705ee59d-6d7d-4586-a1c9-d4fd20ab4969)
### Sous-partie microcontrolleur
![Schema electrique microcontrolleur](../../img/pcb_puissance_2025-Microcontroller.svg){ width="800" }
![Schema electrique microcontrolleur](../../img/pcb/pcb_puissance_2025-Microcontroller.svg){ width="800" }
De gauche à droite:
- Connecteur SWD pour flasher le STM32
- Buzzer
@@ -157,20 +159,21 @@ Documentations :
## Routage
### Couche supérieure
![Routage dessus](../../img/pcb_puissance_2025-F_Cu.png){ width="800" }
![Routage dessous avec vias](../../img/pcb_puissance_2025-F_Cu_V.png){ width="800" }
![Routage dessus avec silkscreen](../../img/pcb_puissance_2025-F_Cu_S.png){ width="800" }
![Routage dessus](../../img/pcb/pcb_puissance_2025-F_Cu.png){ width="800" }
![Routage dessus avec silkscreen](../../img/pcb/pcb_puissance_2025-F_Cu_S.png){ width="800" }
### Couches intermédiaires
![Routage couche 2](../../img/pcb/pcb_puissance_2025-2_Cu.png){ width="800" }
![Routage couche 3](../../img/pcb/pcb_puissance_2025-3_Cu.png){ width="800" }
### Couche inférieure
![Routage dessous](../../img/pcb_puissance_2025-B_Cu.png){ width="800" }
![Routage dessous avec vias silkscreen](../../img/pcb_puissance_2025-B_Cu_V.png){ width="800" }
![Routage dessous avec silkscreen](../../img/pcb_puissance_2025-B_Cu_S.png){ width="800" }
![Routage dessous](../../img/pcb/pcb_puissance_2025-B_Cu.png){ width="800" }
![Routage dessous avec silkscreen](../../img/pcb/pcb_puissance_2025-B_Cu_S.png){ width="800" }
### Perçage
![Perçage](../../img/pcb_puissance_2025-drl_map.svg){ width="800" }
![Perçage](../../img/pcb/pcb_puissance_2025-drl_map.png){ width="800" }
## Vues 3D
### Vue de dessus
![Vue 3D de dessus](../../img/pcb_puissance_2025_top.png){ width="800" }
![Vue 3D de dessus](../../img/pcb/pcb_puissance_2025_top.png){ width="800" }
### Vue de dessous
![Vue 3D de dessous](../../img/pcb_puissance_2025_bot.png){ width="800" }
![Vue 3D de dessous](../../img/pcb/pcb_puissance_2025_bot.png){ width="800" }
## Qualité
### Règles de design appliquées
@@ -192,8 +195,8 @@ Documentations :
### Bonnes pratiques
- SDA et SCL séparées par une piste GND ou 3V3 quand c'est possible.
- Plans de masse sur les deux faces avec matrice de vias de 5mm et 2,5mm sur les bordures.
-
- Plans de masse sur les quatre faces avec matrice de vias de 5mm et 2,5mm sur les bordures.
- Pistes à courant important doublées sur les faces intermédiaires
### Vérifications réalisées
@@ -211,61 +214,62 @@ Documentations :
### Fichiers de fabrication
Les fichiers sources KiCad et les fichiers de fabrication sont téléchargeables dans les [releases Github](https://github.com/modelec/pcb_puissance/releases)
### Bill Of Material
Reference |Value|Datasheet|Footprint|Qty|
|-------------------------------------------------------|-|-|-|-|
BZ1 |Buzzer|https://product.tdk.com/en/system/files/dam/doc/product/sw_piezo/sw_piezo/piezo-buzzer/catalog/piezoelectronic_buzzer_ps_en.pdf|Modelec:XTAL_PS1240P02BT_TDK|1|
C1,C3,C5 |0u4|~|Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder|3|
C2,C4,C6 |40n|~|Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder|3|
C7 |1000u|https://search.kemet.com/download/specsheet/ESY108M035AL4AA|Capacitor_THT:CP_Radial_D13.0mm_P5.00mm|1|
C8 |10n|~|Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder|1|
C9,C10,C13,C14,C15,C16,C17,C18,C21,C23 |100n|~|Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder|10|
C11 |4u7|~|Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder|1|
C12 |1u|~|Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder|1|
C19,C20 |330u|~|Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder|2|
C22 |2u2|~|Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder|1|
D1,D2,D3 |BAT54J|https://assets.nexperia.com/documents/data-sheet/BAT54J.pdf|Diode_SMD:D_SOD-323F|3|
D4 |ESDA25P35-1U1M|https://www.st.com/resource/en/datasheet/esda25p35-1u1m.pdf|Modelec:QFN1610_STM|1|
F1 |10A|https://www.littelfuse.com/assetdocs/littelfuse-fuse-154-series-data-sheet?assetguid=a8a8a462-7295-481b-a91b-d770dabf005b|Modelec:01550900M|2|
F7 |10A|https://www.keyelco.com/userAssets/file/M65p42.pdf|Fuse:Fuseholder_Blade_Mini_Keystone_3568|2|
F2,F3 |20A|https://www.keyelco.com/userAssets/file/M65p42.pdf|Fuse:Fuseholder_Blade_Mini_Keystone_3568|2|
F4,F5,F6 |6A|https://www.littelfuse.com/assetdocs/littelfuse-fuse-154-series-data-sheet?assetguid=a8a8a462-7295-481b-a91b-d770dabf005b|Modelec:01550900M|3|
F8 |1A25|https://www.littelfuse.com/assetdocs/littelfuse-fuse-154-series-data-sheet?assetguid=a8a8a462-7295-481b-a91b-d770dabf005b|Modelec:01550900M|1|
J1,J2,J3,J4,J5,J6,J10,J12,J13,J15,J16,J18,J19,J21,J22 |1755736|http://www.phoenixcontact.com/de/produkte/1755736/pdf|Modelec:PhoenixContact_MSTBVA_2,5_2-G-5,08_1x02_P5.08mm_Vertical|15|
J7 |Conn_02x10_Odd_Even|~|Connector_PinHeader_1.27mm:PinHeader_2x10_P1.27mm_Vertical|1|
J8 |Conn_ST_STDC14|https://www.st.com/content/ccc/resource/technical/document/user_manual/group1/99/49/91/b6/b2/3a/46/e5/DM00526767/files/DM00526767.pdf/jcr:content/translations/en.DM00526767.pdf|Connector_PinHeader_1.27mm:PinHeader_2x07_P1.27mm_Vertical|1|
J11 |USB_C_Receptacle_USB2.0_16P|https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/5492/USB4105.pdf|Modelec:GCT_USB4105-GF-A|1|
J14,J17,J20 |Conn_02x06_Odd_Even|~|Connector_PinHeader_1.27mm:PinHeader_2x06_P1.27mm_Vertical|3|
PS1 |TMR_6-2410WI|https://tracopower.com/tmr6-datasheet/|TMR60510|1|
PS2,PS3 |THN_30-2411WI|https://tracopower.com/thn30-datasheet/|THN301211|2|
PS4 |TEN_50-2412WI|https://tracopower.com/ten50wi-datasheet/|TEN_50-2411|1|
PS5 |THN_30-2415WI|https://tracopower.com/thn30-datasheet/|THN301211|1|
Q1,Q2,Q3,Q4,Q5,Q6 |SUD50P06-15|https://www.vishay.com/docs/68940/sud50p06.pdf|Package_TO_SOT_SMD:TO-252-2|6|
Q7 |STL40DN3LLH5|https://www.st.com/resource/en/datasheet/stl40dn3llh5.pdf|Modelec:TRANS_STL40DN3LLH5|1|
Q8 |NPN|https://ngspice.sourceforge.io/docs/ngspice-html-manual/manual.xhtml#cha_BJTs|Package_TO_SOT_SMD:SOT-23|1|
R1 |82k|~|Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder|1|
R2 |100|~|Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder|1|
R3,R16,R17,R18,R28 |10k|~|Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder|5|
R4 |63k4|~|Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder|1|
R5 |158k|~|Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder|1|
R6 |1960k|~|Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder|1|
R7,R10 |37k4|~|Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder|2|
R8,R11 |78k7|~|Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder|2|
R9,R12 |1180k|~|Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder|2|
R13,R14,R15 |8k06|~|Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder|3|
R19 |62m 0.5%|https://www.littelfuse.com/media?resourcetype=datasheets&itemid=705ee59d-6d7d-4586-a1c9-d4fd20ab4969&filename=littelfuse-resistor-l4cl-datasheet|Modelec:L4CL1206LR013DNR|1|
R20,R22 |13m 0.5%|https://www.littelfuse.com/media?resourcetype=datasheets&itemid=705ee59d-6d7d-4586-a1c9-d4fd20ab4969&filename=littelfuse-resistor-l4cl-datasheet|Modelec:L4CL1206LR013DNR|2|
R21 |20m 0.5%|https://www.littelfuse.com/media?resourcetype=datasheets&itemid=705ee59d-6d7d-4586-a1c9-d4fd20ab4969&filename=littelfuse-resistor-l4cl-datasheet|Modelec:L4CL1206LR013DNR|1|
R23,R24 |4m 0.5%|https://s.resistor.today/shop/products/epdf/PEWF2512.pdf|Resistor_SMD:R_2512_6332Metric_Pad1.40x3.35mm_HandSolder|2|
R25 |7m 1%|https://www.littelfuse.com/media?resourcetype=datasheets&itemid=705ee59d-6d7d-4586-a1c9-d4fd20ab4969&filename=littelfuse-resistor-l4cl-datasheet|Modelec:L4CL1206LR013DNR|1|
R26 |47k|~|Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder|1|
R27 |1k|~|Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder|1|
R29,R30 |2k2|~|Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder|2|
SW1 |SW_Push|https://www.sameskydevices.com/product/resource/ds01-254.pdf|Modelec:SW_DS01-254-L-01BE_CUD|1|
TP1,TP2,TP3,TP4,TP5,TP6,TP7,TP8,TP9,TP10 |TestPoint|~|-- valeurs mixtées --|10|
U1 |LTC4417IGN|https://www.analog.com/media/en/technical-documentation/data-sheets/4417f.pdf|Package_SO:SSOP-24_3.9x8.7mm_P0.635mm|1|
U2 |STM32G491KEU6|STM32G491KEU6|Modelec:STM32G491KEU6|1|
U3,U7,U8 |INA236BIDDFR|INA236AIDDFR|SOT23-8_DDF_TEX|3|
U4,U5,U6 |INA236AIDDFR|INA236AIDDFR|SOT23-8_DDF_TEX|3|
U9 |TCPP02-M18|https://www.st.com/resource/en/data_brief/tcpp02-m18.pdf|Modelec:QFN50P350X350X60-19N-D|1|
U10 |MCP9808T-E/MS|MCP9808T-E/MS|MSOP8_MC_MCH|1|
| Reference | Value | Description |
|-------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| BZ1 | [Buzzer](https://product.tdk.com/en/system/files/dam/doc/product/sw_piezo/sw_piezo/piezo-buzzer/catalog/piezoelectronic_buzzer_ps_en.pdf) | Buzzer, polarized |
| C1,C3,C5 | 0u4 | Unpolarized capacitor |
| C2,C4,C6 | 40n | Unpolarized capacitor |
| C7 | [1000u](https://search.kemet.com/download/specsheet/ESY108M035AL4AA) | Polarized capacitor |
| C8 | 10n | Unpolarized capacitor |
| C9,C10,C13,C18,C21,C23 | 100n | Unpolarized capacitor |
| C11 | 4u7 | Unpolarized capacitor |
| C12 | 1u | Unpolarized capacitor |
| C19,C20 | 330u | Unpolarized capacitor |
| C22 | 2u2 | Unpolarized capacitor |
| D1,D3 | [BAT54J](https://assets.nexperia.com/documents/data-sheet/BAT54J.pdf) | 30V 200mA Schottky diode, SOD-323F |
| D4 | [ESDA25P35-1U1M](https://www.st.com/resource/en/datasheet/esda25p35-1u1m.pdf) | Schottky diode |
| D5,D7 | [D_Dual_CommonAnode_AKK_Parallel](https://diotec.com/request/datasheet/bas70.pdf) | Dual diode, common anode on pin 1 |
| F1 | [10A](https://www.keyelco.com/userAssets/file/M65p42.pdf) | Fuse |
| F2,F3 | [20A](https://www.keyelco.com/userAssets/file/M65p42.pdf) | Fuse |
| F4,F6 | [6A](https://www.littelfuse.com/assetdocs/littelfuse-fuse-154-series-data-sheet?assetguid=a8a8a462-7295-481b-a91b-d770dabf005b) | Fuse |
| F7 | [10A](https://www.littelfuse.com/assetdocs/littelfuse-fuse-154-series-data-sheet?assetguid=a8a8a462-7295-481b-a91b-d770dabf005b) | Fuse |
| F8 | [1A25](https://www.littelfuse.com/assetdocs/littelfuse-fuse-154-series-data-sheet?assetguid=a8a8a462-7295-481b-a91b-d770dabf005b) | Fuse |
| J1,J6,J10,J12,J13,J15,J16,J18,J19,J21,J22 | [1755736](http://www.phoenixcontact.com/de/produkte/1755736/pdf) | PCB header, nominal cross section: 2.5 mm?, color: green, nominal current: 12 A, rated voltage (III/2): 320 V, contact surface: Tin, type of contact: Male connector, Number of potentials: 2, Number of rows: 1, Number of positions per row: 2, number of connections: 2, product range: MSTBVA 2,5/..-G, pitch: 5.08 mm, mounting: Wave soldering, pin layout: Linear pinning, solder pin [P]: 3.9 mm, Stecksystem: CLASSIC COMBICON, Locking: without, type of packaging: packed in cardboard |
| J7 | Conn_02x10_Odd_Even | Generic connector, double row, 02x10, odd/even pin numbering scheme (row 1 odd numbers, row 2 even numbers), script generated (kicad-library-utils/schlib/autogen/connector/) |
| J8 | [Conn_ST_STDC14](https://www.st.com/content/ccc/resource/technical/document/user_manual/group1/99/49/91/b6/b2/3a/46/e5/DM00526767/files/DM00526767.pdf/jcr:content/translations/en.DM00526767.pdf) | ST Debug Connector, standard ARM Cortex-M SWD and JTAG interface plus UART |
| J11 | [USB_C_Receptacle_USB2.0_16P](https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/5492/USB4105.pdf) | USB 2.0-only 16P Type-C Receptacle connector |
| J14,J17,J20 | Conn_02x06_Odd_Even | Generic connector, double row, 02x06, odd/even pin numbering scheme (row 1 odd numbers, row 2 even numbers), script generated (kicad-library-utils/schlib/autogen/connector/) |
| PS1 | [TMR_6-2410WI](https://tracopower.com/tmr6-datasheet/) | 6 Watt DC/DC converter, industrial, 2:1 input, regulated, 1600 VDC I/O-isolation, encapsulated, SIP-8 |
| PS2,PS3 | [THN_30-2411WI](https://tracopower.com/thn30-datasheet/) | 30 Watt DC/DC converter, industrial, 2:1 input, encpasulated, 1.0" x 1.0" metal package |
| PS4 | [TEN_50-2412WI](https://tracopower.com/ten50wi-datasheet/) | 50 Watt DC/DC converter, industrial, 4:1 input, encapsulated, 2" x 1" metal package |
| PS5 | [THN_30-2415WI](https://tracopower.com/thn30-datasheet/) | 30 Watt DC/DC converter, industrial, 2:1 input, encpasulated, 1.0" x 1.0" metal package |
| Q1,Q6 | [SUD50P06-15](https://www.vishay.com/docs/68940/sud50p06.pdf) | -50A Id, -60V Vds, TrenchFET P-Channel Power MOSFET, 15mOhm Ron, 165nC Qg, -55 to 150 °C, TO-252-2 |
| Q7 | [STL40DN3LLH5](https://www.st.com/resource/en/datasheet/stl40dn3llh5.pdf) | |
| Q8 | [NPN](https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/6130/2DC2412R.pdf) | Bipolar transistor symbol for simulation only, substrate tied to the emitter |
| Q9 | [NMOS](https://www.diodes.com/assets/Datasheets/ds11303.pdf) | N-MOSFET transistor, drain/source/gate |
| R1 | 82k | Resistor |
| R2 | 100 | Resistor |
| R3,R16,R18,R28 | 10k | Resistor |
| R4 | 63k4 | Resistor |
| R5 | 158k | Resistor |
| R6 | 1960k | Resistor |
| R7,R10 | 37k4 | Resistor |
| R8,R11 | 78k7 | Resistor |
| R9,R12 | 1180k | Resistor |
| R13,R15 | 8k06 | Resistor |
| R19 | [62m 0.5%](https://www.littelfuse.com/media?resourcetype=datasheets&itemid=705ee59d-6d7d-4586-a1c9-d4fd20ab4969&filename=littelfuse-resistor-l4cl-datasheet) | Current Sense Resistors - SMD 4T L4CL1206 0.5W 30ppm 13 mOhm +/-0.5% |
| R20,R22 | [13m 0.5%](https://www.littelfuse.com/media?resourcetype=datasheets&itemid=705ee59d-6d7d-4586-a1c9-d4fd20ab4969&filename=littelfuse-resistor-l4cl-datasheet) | Current Sense Resistors - SMD 4T L4CL1206 0.5W 30ppm 13 mOhm +/-0.5% |
| R21 | [20m 0.5%](https://www.littelfuse.com/media?resourcetype=datasheets&itemid=705ee59d-6d7d-4586-a1c9-d4fd20ab4969&filename=littelfuse-resistor-l4cl-datasheet) | Current Sense Resistors - SMD 4T L4CL1206 0.5W 30ppm 13 mOhm +/-0.5% |
| R23,R24 | [4m 0.5%](https://s.resistor.today/shop/products/epdf/PEWF2512.pdf) | Resistor |
| R25 | [7m 1%](https://www.littelfuse.com/media?resourcetype=datasheets&itemid=705ee59d-6d7d-4586-a1c9-d4fd20ab4969&filename=littelfuse-resistor-l4cl-datasheet) | Current Sense Resistors - SMD 4T L4CL1206 0.5W 30ppm 13 mOhm +/-0.5% |
| R26 | 47k | Resistor |
| R27,R31,R33 | 1k | Resistor |
| R29,R30 | 2k2 | Resistor |
| SW1 | [SW_Push](https://www.sameskydevices.com/product/resource/ds01-254.pdf) | Push button switch, generic, two pins |
| TP1,TP10 | TestPoint | test point |
| U1 | [LTC4417IGN](https://www.analog.com/media/en/technical-documentation/data-sheets/4417f.pdf) | Prioritized PowerPath Controller, Selects Highest Priority Supply from Three Inputs, –40°C to 85°C, SSOP |
| U2 | [STM32G491KEU6](https://www.st.com/resource/en/datasheet/stm32g491ke.pdf) | |
| U3,U7,U8 | [INA236BIDDFR](https://www.ti.com/lit/ds/symlink/ina236.pdf) | |
| U4,U6 | [INA236AIDDFR](https://www.ti.com/lit/ds/symlink/ina236.pdf) | |
| U9 | [TCPP02-M18](https://www.st.com/resource/en/data_brief/tcpp02-m18.pdf) | USB Type-C Port Protection for Source application |
| U10 | [MCP9808T-E/MS](https://ww1.microchip.com/downloads/aemDocuments/documents/OTH/ProductDocuments/DataSheets/MCP9808-0.5C-Maximum-Accuracy-Digital-Temperature-Sensor-Data-Sheet-DS20005095B.pdf) | |

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