Solar MPPT Power System - hardware/bom.csv

by TylerK

A 30 W solar battery charger with regulated 5 V and 3.3 V rails: an STM32G031 running perturb & observe MPPT and a CC/CV charge state machine, steering a TI LM5175 4-switch buck-boost through a single analog control input. Four-layer KiCad board, schematic and PCB generated from Python, with an electrothermal simulation run against the published board file.

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TylerK Publish 2.0.0 efbad62 1mo ago

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"Reference","Value","Footprint","Qty"
"C1,C13,C28","10n","Capacitor_SMD:C_0805_2012Metric",""
"C2,C3,C18,C19,C22","100u","Capacitor_SMD:CP_Elec_6.3x5.8",""
"C4,C5,C9,C15,C20,C25,C30,C33","1u","Capacitor_SMD:C_0805_2012Metric",""
"C6,C10,C11,C27,C31","10u","Capacitor_SMD:C_1206_3216Metric",""
"C7,C16,C17,C21,C23,C24,C26,C34,C35","100n","Capacitor_SMD:C_0805_2012Metric",""
"C8,C12","1n","Capacitor_SMD:C_0805_2012Metric",""
"C14","2.2n","Capacitor_SMD:C_0805_2012Metric",""
"C29","47u","Capacitor_SMD:C_1206_3216Metric",""
"C32","22u","Capacitor_SMD:C_1206_3216Metric",""
"D1","BZT52C15 (15V)","Diode_SMD:D_SOD-123",""
"D2","SMBJ33A (33V)","Diode_SMD:D_SMB",""
"D3,D4","BAT54","Diode_SMD:D_SOD-123",""
"F1","6.3A","Fuse:Fuseholder_Clip-5x20mm_Keystone_3512_Inline_P23.62x7.27mm_D1.02x1.57mm_Horizontal",""
"FB1,FB2","600R@100MHz","Capacitor_SMD:C_0805_2012Metric",""
"J1","SOLAR_IN","TerminalBlock_Phoenix:TerminalBlock_Phoenix_PT-1,5-2-3.5-H_1x02_P3.50mm_Horizontal",""
"J2","BATTERY (12V SLA/AGM)","TerminalBlock_Phoenix:TerminalBlock_Phoenix_PT-1,5-2-3.5-H_1x02_P3.50mm_Horizontal",""
"J3","5V OUT / 2A","TerminalBlock_Phoenix:TerminalBlock_Phoenix_PT-1,5-2-3.5-H_1x02_P3.50mm_Horizontal",""
"J4","3.3V OUT / 1A","TerminalBlock_Phoenix:TerminalBlock_Phoenix_PT-1,5-2-3.5-H_1x02_P3.50mm_Horizontal",""
"J5","SWD","Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical",""
"J6","UART_DEBUG","Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical",""
"L1","22u","Inductor_SMD:L_Sunlord_MWSA1005S",""
"L2","68u (Isat>=6A)","Inductor_SMD:L_Bourns-SRN1060",""
"L3","4.7u (Isat>=3A)","Inductor_SMD:L_Bourns_SRN6045TA",""
"L4","2.2u (Isat>=1.5A)","Inductor_SMD:L_Bourns-SRN4018",""
"LED1","GREEN (charge)","LED_SMD:LED_0805_2012Metric",""
"LED2","RED (fault)","LED_SMD:LED_0805_2012Metric",""
"Q1","IRF3205 (55V NFET)","Package_TO_SOT_THT:TO-220-3_Vertical",""
"Q2","IRF3205 (leg1 HS)","Package_TO_SOT_THT:TO-220-3_Vertical",""
"Q3","IRF3205 (leg1 LS)","Package_TO_SOT_THT:TO-220-3_Vertical",""
"Q4","IRF3205 (leg2 HS)","Package_TO_SOT_THT:TO-220-3_Vertical",""
"Q5","IRF3205 (leg2 LS)","Package_TO_SOT_THT:TO-220-3_Vertical",""
"R1,R8","100k","Resistor_SMD:R_0805_2012Metric",""
"R2","40.2k","Resistor_SMD:R_0805_2012Metric",""
"R3,R5,R9,R12,R14,R17,R18,R20,R22,R26,R27,R29","10k","Resistor_SMD:R_0805_2012Metric",""
"R4","4.99k","Resistor_SMD:R_0805_2012Metric",""
"R6","0","Resistor_SMD:R_0805_2012Metric",""
"R7","100","Resistor_SMD:R_0805_2012Metric",""
"R10","150k","Resistor_SMD:R_0805_2012Metric",""
"R11,R28","20k","Resistor_SMD:R_0805_2012Metric",""
"R13","120k","Resistor_SMD:R_0805_2012Metric",""
"R15","68k","Resistor_SMD:R_0805_2012Metric",""
"R16,R19","46.4k","Resistor_SMD:R_0805_2012Metric",""
"R23,R24","1k","Resistor_SMD:R_0805_2012Metric",""
"R25","61.9k","Resistor_SMD:R_0805_2012Metric",""
"RS1","0.01 (2512, 1W)","Resistor_SMD:R_2512_6332Metric",""
"RS2","0.02 (2512, 1W)","Resistor_SMD:R_2512_6332Metric",""
"TP1","TP_PANEL_PROT","TestPoint:TestPoint_Pad_D1.0mm",""
"TP2","TP_VBATT","TestPoint:TestPoint_Pad_D1.0mm",""
"TP3","TP_V5V_OUT","TestPoint:TestPoint_Pad_D1.0mm",""
"TP4","TP_V3V3_OUT","TestPoint:TestPoint_Pad_D1.0mm",""
"U1","LM74700","Package_TO_SOT_SMD:SOT-23-6",""
"U2","LM5165 (wide-Vin micro-buck)","Package_SON:Texas_S-PVSON-N10",""
"U3","AMS1117-3.3","Package_TO_SOT_SMD:SOT-223-3_TabPin2",""
"U4","LM5175 (4-switch sync buck-boost)","Package_SO:HTSSOP-28-1EP_4.4x9.7mm_P0.65mm_EP2.75x6.2mm_ThermalVias",""
"U5","INA180A1 (Iin, x20V/V)","Package_TO_SOT_SMD:SOT-23-5",""
"U6","INA180A1 (Ichg, x20V/V)","Package_TO_SOT_SMD:SOT-23-5",""
"U7","STM32G031F8Px","Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm",""
"U8","TPS62130 (5V/2A buck)","Package_DFN_QFN:QFN-16-1EP_3x3mm_P0.5mm_EP1.45x1.45mm",""
"U9","TLV62569 (3.3V/1A buck)","Package_TO_SOT_SMD:SOT-563",""