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Queens-Rocket-Engineering-Team
QRET Avionics PCBs and firmware for delivering power to SRAD PCBs
| Reference | Value | Description |
|---|---|---|
| Q1 | AO4447A | |
| Q2 | SI2305CDS | -50℃~+150℃ 1 P-Channel 1.56W 2.5V 20pF 240mΩ@4.5V 3.1A 35pF 425pF 60V 8.2nC@10V P-Channel SOT-23 MOSFETs ROHS |
| Q3 | DMN6040SSD-13 | -55℃~+150℃ 1.287nF 1.3W 2 N-Channel 22.4nC@10V 3V 40mΩ@10V 44pF 5A 60V SO-8 MOSFETs ROHS |
| U1 | TPS61175PWPR | 24V BOOST |
| U2,U3 | LM74700QDBVRQ1 | Low Iq reverse battery protection ideal diode controller, SOT-23-6 |
| U4 | ACS37041KLHBLT-010B3 |
| U5 | ACS37041KLHBLT-010B5 |
|---|
| U6 | INA187A | Bidirectional, Low- and High-Side Voltage Output, Current-Sense Amplifier, SOT-23-6 |
|---|
| U7,U8 | LMR51430XDDCR | 3.3V BUCK,5.0V BUCK |
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| U9-U11 | LM66100DCKR |
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| U12 | AMS1117-3.3 |
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| U13 | CP2102N-A02-GQFN20R | USB to UART master bridge, QFN-20 |
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| U14 | STM32F103CBT6 |
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| U15 | TCAN1051HGVDR |
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| U16 | BY25Q128ES |
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| C1,C14 | 4.7uF |
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| C2,C13,C15-C17,C20-C23,C34,C46,C48 | 100nF | Unpolarized capacitor |
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| C3,C43 | 10nF |
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| C4-C7,C28-C30,C36,C44,C45 | 1uF |
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| C8 | 33nF | Unpolarized capacitor |
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| C9-C11,C18,C19,C24-C27,C31,C32,C37,C40 | 10uF | Unpolarized capacitor |
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| C12,C49-C53 | 22uF | Unpolarized capacitor |
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| C33,C35 | 10p |
|---|
| C38,C39,C41,C42 | 100n |
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| D3 | BZV55C12 | 12V, 500mW, 5%, Zener diode, MiniMELF |
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| D4 | 50V 3A | Schottky diode |
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| D5 | 3.3V PWR (GRN) |
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| D6 | 5V PWR (RED) |
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| D7 | 24V PWR (WHIT) |
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| D8 | DB_LED (YLW) | DBG |
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| D9 | SMAJ30CA | 400W bidirectional Transient Voltage Suppressor, 30.0Vr, SMA(DO-214AC) |
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| FB1 | 600R |
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| J1,J3 | ScrewSwitch |
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| J2 | Battery |
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| J4 | GSE |
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| J5 | USB_C_Female_USB2_Small |
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| J6 | SWD_B |
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| J7 | Stack Male Edge Connector | QRET SRAD Male Stack Edge Connector (PCIe x1 Connector). Generation 2 |
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| L1 | 47uH | Inductor |
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| L2 | 22uH |
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| L3 | 68uH |
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| R1 | 6.2k | Resistor |
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| R2 | 82k | Resistor |
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| R3,R10 | 12k | Resistor |
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| R4 | 220k | Resistor |
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| R5,R7,R11 | 30k |
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| R6 | 100m | SHUNT |
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| R8 | 3.3k |
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| R9 | 2.4k |
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| R12,R27 | 1k |
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| R13,R15,R29,R30 | 10k |
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| R14,R16,R20,R21,R24 | 100k | Resistor |
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| R17,R25 | 22k |
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| R18 | 56k |
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| R19 | 7.5k |
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| R22,R23 | 5.1k |
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| R26 | 47k |
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| R28 | 680R |
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| SW1 | SW_STM_RESET | RESET |
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| SW2 | SW_STM_BOOT_MODE | BOOT |
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| Y1 | X322516MMB4SI |
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