PCB 2025 rev2
Allan Cueff
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# PCB alimentation
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Mis à jour pour la version [v2-alpha.1](https://github.com/modelec/pcb_puissance/releases/tag/v2-alpha-1)
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## Introduction
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Le PCB alimentation 2025 du robot fait le lien entre les différentes sources d'alimentation et les composants du robot.
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@@ -14,6 +16,7 @@ Les fonctionnalités proposées sont :
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- Mesure de la température de la carte
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- Protocole USB-PD sur la sortie 5,15V
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- Remontée d'info & GPIO
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- Buzzer désactivable via un switch
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## Besoins
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Les besoins qui nous ont amené à réaliser un PCB alimentation pour le robot sont :
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- Réduction du câblage
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## Routage
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### Couche supérieure
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{ width="800" }
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{ width="800" }
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{ width="800" }
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{ width="800" }
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### Couche inférieure
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{ width="800" }
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{ width="800" }
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{ width="800" }
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{ width="800" }
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### Perçage
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{ width="800" }
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## Vues 3D
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### Vue de dessus
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{ width="800" }
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{ width="800" }
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### Vue de dessous
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{ width="800" }
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{ width="800" }
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## Qualité
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### Règles de design appliquées
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#### Largeur des pistes
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| 0,2mm | 0,5mm | 1mm | 2mm | 3mm | 4mm |
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|------------------------------------------------------------------------|--------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|----------------------|-----------------------------------------------------------------------------------------------------------------------------------|---------------------------|
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| GPIO, I2C, VALID, OV, UV, Resistances mesure de courant, Gates mosfets | 3,3V, Pads des résistances de mesure de courant, Pads VBUS du connecteur USB-C | Alimentation connecteur USB-C, Alimentation des 6 pins Dupont en sortie de puissance | Vout vers Traco 3,3V | Sources communes des P-MOSFET de puissance, F4, F5, F6, F7, F8, Sorties des Traco => resistances de mesure => connecteurs Phoenix | IN1, IN2, IN3, F1, F2, F3 |
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#### Règles de design
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| Regle | Valeur | Violation |
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|-------------------------------|--------|--------------------------------------|
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| Isolation minimum | 0,2mm | Pads STM32, Pads TCPP02, Pads INA236 |
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| Largeur de piste minimum | 0,2mm | non |
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| Largeur minimale de connexion | 0,02mm | non |
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| Largeur minimale d'anneau | 0,1mm | non |
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| Diamètre minimum de via | 0,5mmm | non |
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| Isolation trou/cuivre | 0,25mm | Trou non métallisé connecteur USB-C |
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| Isolation cuivre/contour | 0,5mm | non |
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### Bonnes pratiques
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- SDA et SCL séparées par une piste GND ou 3V3 quand c'est possible.
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- Plans de masse sur les deux faces avec matrice de vias de 5mm et 2,5mm sur les bordures.
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-
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### Vérifications réalisées
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- Schéma électrique pour la sélection d'entrée conforme à celui recommandé dans la datasheet du LTC4417.
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- Schéma électrique pour l'USB-PD conforme à celui dans la datasheet de la carte d'évaluation X-NUCLEO-SRC1M1.
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- GPIO du STM32 bien choisis par fonction pour SDA, SLC, PWM du buzzer, CC1, CC2.
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- Condensateurs de découplages présents et conformes aux recommendations des datasheets STM32G419, TCPP02, INA236 et MCP9608.
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- Résistances de pull-up et capacitance totale du bus I2C conformes au [standard](https://www.nxp.com/docs/en/user-guide/UM10204.pdf).
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- Plusieurs chemins de retour pour la masse, suffisamment larges et aménagés avec des vias.
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- Références des empreintes visibles et toutes orientées de la même manière.
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- Espace suffisamment important autour des connecteurs.
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- Indications utilisateur utiles ajoutées pour les fusibles, test points, switches, connecteurs.
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## Fabrication
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### Fichiers de fabrication
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Les fichiers sources KiCad et les fichiers de fabrication sont téléchargeables dans les [releases Github](https://github.com/modelec/pcb_puissance/releases)
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### Bill Of Material
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Reference |Value|Datasheet|Footprint|Qty|
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|-------------------------------------------------------|-|-|-|-|
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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|
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C1,C3,C5 |0u4|~|Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder|3|
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C2,C4,C6 |40n|~|Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder|3|
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C7 |1000u|https://search.kemet.com/download/specsheet/ESY108M035AL4AA|Capacitor_THT:CP_Radial_D13.0mm_P5.00mm|1|
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C8 |10n|~|Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder|1|
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C9,C10,C13,C14,C15,C16,C17,C18,C21,C23 |100n|~|Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder|10|
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C11 |4u7|~|Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder|1|
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C12 |1u|~|Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder|1|
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C19,C20 |330u|~|Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder|2|
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C22 |2u2|~|Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder|1|
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D1,D2,D3 |BAT54J|https://assets.nexperia.com/documents/data-sheet/BAT54J.pdf|Diode_SMD:D_SOD-323F|3|
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D4 |ESDA25P35-1U1M|https://www.st.com/resource/en/datasheet/esda25p35-1u1m.pdf|Modelec:QFN1610_STM|1|
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F1 |10A|https://www.littelfuse.com/assetdocs/littelfuse-fuse-154-series-data-sheet?assetguid=a8a8a462-7295-481b-a91b-d770dabf005b|Modelec:01550900M|2|
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F7 |10A|https://www.keyelco.com/userAssets/file/M65p42.pdf|Fuse:Fuseholder_Blade_Mini_Keystone_3568|2|
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F2,F3 |20A|https://www.keyelco.com/userAssets/file/M65p42.pdf|Fuse:Fuseholder_Blade_Mini_Keystone_3568|2|
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F4,F5,F6 |6A|https://www.littelfuse.com/assetdocs/littelfuse-fuse-154-series-data-sheet?assetguid=a8a8a462-7295-481b-a91b-d770dabf005b|Modelec:01550900M|3|
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F8 |1A25|https://www.littelfuse.com/assetdocs/littelfuse-fuse-154-series-data-sheet?assetguid=a8a8a462-7295-481b-a91b-d770dabf005b|Modelec:01550900M|1|
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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|
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J7 |Conn_02x10_Odd_Even|~|Connector_PinHeader_1.27mm:PinHeader_2x10_P1.27mm_Vertical|1|
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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|
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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|
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J14,J17,J20 |Conn_02x06_Odd_Even|~|Connector_PinHeader_1.27mm:PinHeader_2x06_P1.27mm_Vertical|3|
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PS1 |TMR_6-2410WI|https://tracopower.com/tmr6-datasheet/|TMR60510|1|
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PS2,PS3 |THN_30-2411WI|https://tracopower.com/thn30-datasheet/|THN301211|2|
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PS4 |TEN_50-2412WI|https://tracopower.com/ten50wi-datasheet/|TEN_50-2411|1|
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PS5 |THN_30-2415WI|https://tracopower.com/thn30-datasheet/|THN301211|1|
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Q1,Q2,Q3,Q4,Q5,Q6 |SUD50P06-15|https://www.vishay.com/docs/68940/sud50p06.pdf|Package_TO_SOT_SMD:TO-252-2|6|
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Q7 |STL40DN3LLH5|https://www.st.com/resource/en/datasheet/stl40dn3llh5.pdf|Modelec:TRANS_STL40DN3LLH5|1|
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Q8 |NPN|https://ngspice.sourceforge.io/docs/ngspice-html-manual/manual.xhtml#cha_BJTs|Package_TO_SOT_SMD:SOT-23|1|
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R1 |82k|~|Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder|1|
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R2 |100|~|Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder|1|
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R3,R16,R17,R18,R28 |10k|~|Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder|5|
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R4 |63k4|~|Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder|1|
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R5 |158k|~|Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder|1|
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R6 |1960k|~|Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder|1|
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R7,R10 |37k4|~|Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder|2|
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R8,R11 |78k7|~|Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder|2|
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R9,R12 |1180k|~|Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder|2|
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R13,R14,R15 |8k06|~|Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder|3|
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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|
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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|
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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|
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R23,R24 |4m 0.5%|https://s.resistor.today/shop/products/epdf/PEWF2512.pdf|Resistor_SMD:R_2512_6332Metric_Pad1.40x3.35mm_HandSolder|2|
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R25 |7m 1%|https://www.littelfuse.com/media?resourcetype=datasheets&itemid=705ee59d-6d7d-4586-a1c9-d4fd20ab4969&filename=littelfuse-resistor-l4cl-datasheet|Modelec:L4CL1206LR013DNR|1|
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R26 |47k|~|Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder|1|
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R27 |1k|~|Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder|1|
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R29,R30 |2k2|~|Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder|2|
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SW1 |SW_Push|https://www.sameskydevices.com/product/resource/ds01-254.pdf|Modelec:SW_DS01-254-L-01BE_CUD|1|
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TP1,TP2,TP3,TP4,TP5,TP6,TP7,TP8,TP9,TP10 |TestPoint|~|-- valeurs mixtées --|10|
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U1 |LTC4417IGN|https://www.analog.com/media/en/technical-documentation/data-sheets/4417f.pdf|Package_SO:SSOP-24_3.9x8.7mm_P0.635mm|1|
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U2 |STM32G491KEU6|STM32G491KEU6|Modelec:STM32G491KEU6|1|
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U3,U7,U8 |INA236BIDDFR|INA236AIDDFR|SOT23-8_DDF_TEX|3|
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U4,U5,U6 |INA236AIDDFR|INA236AIDDFR|SOT23-8_DDF_TEX|3|
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U9 |TCPP02-M18|https://www.st.com/resource/en/data_brief/tcpp02-m18.pdf|Modelec:QFN50P350X350X60-19N-D|1|
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U10 |MCP9808T-E/MS|MCP9808T-E/MS|MSOP8_MC_MCH|1|
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Before Width: | Height: | Size: 78 KiB After Width: | Height: | Size: 255 KiB |
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Before Width: | Height: | Size: 768 KiB After Width: | Height: | Size: 492 KiB |
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Before Width: | Height: | Size: 95 KiB After Width: | Height: | Size: 386 KiB |
BIN
img/pcb_puissance_2025-B_Cu_V.png
Normal file
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After Width: | Height: | Size: 564 KiB |
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Before Width: | Height: | Size: 84 KiB After Width: | Height: | Size: 266 KiB |
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Before Width: | Height: | Size: 533 KiB After Width: | Height: | Size: 443 KiB |
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Before Width: | Height: | Size: 148 KiB After Width: | Height: | Size: 585 KiB |
BIN
img/pcb_puissance_2025-F_Cu_V.png
Normal file
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After Width: | Height: | Size: 667 KiB |
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Before Width: | Height: | Size: 850 KiB After Width: | Height: | Size: 1018 KiB |
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Before Width: | Height: | Size: 1.3 MiB After Width: | Height: | Size: 1.3 MiB |
18848
img/pcb_puissance_2025-drl_map.svg
Normal file
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After Width: | Height: | Size: 319 KiB |
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Before Width: | Height: | Size: 943 KiB After Width: | Height: | Size: 945 KiB |
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Before Width: | Height: | Size: 1.0 MiB After Width: | Height: | Size: 1.1 MiB |
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Before Width: | Height: | Size: 374 KiB After Width: | Height: | Size: 444 KiB |
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Before Width: | Height: | Size: 356 KiB After Width: | Height: | Size: 416 KiB |