Juwei17
xlazam01
Upgrade of Juwei17 Astronomy Mount
Components (64)
| Reference | Value | Description |
|---|---|---|
| Q1,Q2,Q4 | AO4411 | -6.7A Id, -20V Vds, P-Channel HEXFET Power MOSFET, SO-8 |
| Q3 | DTC114E | Digital NPN Transistor, 10k/10k, SOT-23 |
| U2 | CP2102N-Axx-xQFN28 | |
| U4 | DS3231M | Extremely Accurate I2C-Integrated RTC/TCXO/Crystal SOIC-16 |
| U5 | USBLC6-2SC6 | Very low capacitance ESD protection diode, 2 data-line, SOT-23-6 |
| U6 | 74HC14 | Hex inverter schmitt trigger |
| U7 | ME6211 | |
| U8 | ME3116 | |
| U9 | 24AA64T-I/OT | I2C Serial EEPROM with EUI-48 or EUI-64, 2Kb, SOT-23-5 |
| U11 | BME280 | |
| U12 | STM32F446RETx | STMicroelectronics Arm Cortex-M4 MCU, 512KB flash, 128KB RAM, 180 MHz, 1.8-3.6V, 50 GPIO, LQFP64 |
| A1,A2 | Pololu_Breakout_A4988 | Pololu Breakout Board, Stepper Driver A4988 |
| BT1 | Battery_Cell | Single-cell battery |
| C1,C4 | 20pF | |
| C2,C19 | 10u/25V | |
| C3,C11,C14-C16,C18,C22,C26,C49 | 10uF/10V | |
| C5,C13 | 1uF/10V | |
| C6,C7 | 2u2/6.3 | |
| C8,C9 | 12pF | |
| C10,C12,C20,C21,C40,C46,C47 | 100n | |
| C17,C23,C41 | 100n/50V | |
| C24 | 1u/25V | |
| C25 | 1uF | |
| C27,C45 | 100nF | |
| C28,C42-C44 | 100uF/35V | Unpolarized capacitor |
| D1,D12,D15 | LED | |
| D2 | SS34 | |
| D3-D6,D8-D10,D14 | 0603ESDA-05N | Bidirectional transient-voltage-suppression diode |
| D7,D16 | BZT52B12 | 500mW Zener Diode, SOD-123F |
| D11 | BZT52Bxx | 500mW Zener Diode, SOD-123F |
| D13 | BAT54C | dual schottky barrier diode, common cathode |
| D17 | BAV99 | BAV99 High-speed switching diodes, SOT-23 |
| F1 | SMD0805P050TF | Resettable fuse, polymeric positive temperature coefficient, small symbol |
| J1 | USB_C_Receptacle_USB2.0 | USB 2.0-only 14P Type-C Receptacle connector |
| J2 | RJ12 | RJ connector, 6P6C (6 positions 6 connected) |
| J3 | 5.5/2.1 Barell DC3 | |
| J4 | RA_HOME | Generic connector, single row, 01x03, script generated (kicad-library-utils/schlib/autogen/connector/) |
| J5 | DEC_HOME | Generic connector, single row, 01x03, script generated (kicad-library-utils/schlib/autogen/connector/) |
| J6 | LIMIT | Generic connector, single row, 01x03, script generated (kicad-library-utils/schlib/autogen/connector/) |
| J7 | GPS | Generic connector, single row, 01x05, script generated (kicad-library-utils/schlib/autogen/connector/) |
| J8 | Conn_01x02 | Generic connector, single row, 01x02, script generated (kicad-library-utils/schlib/autogen/connector/) |
| J10 | MAIN SWITCH | Generic connector, single row, 01x02, script generated (kicad-library-utils/schlib/autogen/connector/) |
| J11,J12 | RA_2mm | Generic connector, single row, 01x04, script generated (kicad-library-utils/schlib/autogen/connector/) |
| J13,J14 | RA_2.54mm | Generic connector, single row, 01x04, script generated (kicad-library-utils/schlib/autogen/connector/) |
| J15 | I2C | Generic connector, single row, 01x04, script generated (kicad-library-utils/schlib/autogen/connector/) |
| J16 | LED CONNECTOR | Generic connector, single row, 01x02, script generated (kicad-library-utils/schlib/autogen/connector/) |
| J17 | PEC | Generic connector, single row, 01x03, script generated (kicad-library-utils/schlib/autogen/connector/) |
| J18 | ONEWIRE | Generic connector, single row, 01x03, script generated (kicad-library-utils/schlib/autogen/connector/) |
| L2 | FNR5040S100MT | |
| L3 | BLM18HE601SH1D | |
| R1 | 1MEG | |
| R2-R6,R21,R25-R27,R30,R33,R34,R36-R38 | 10k | |
| R7,R8,R39 | 5k1 | |
| R9,R18,R28,R29,R40,R42,R44,R45 | 1k | |
| R10,R11,R31,R43 | 100k | |
| R14 | 36k | |
| R15 | 6k8 | |
| R16,R17,R19,R32 | 4k7 | |
| R20,R22-R24 | 2k4 | |
| R35 | 510R | |
| RST2 | EVQPUM | |
| TP1-TP3 | TestPoint | test point |
| Y1 | TAXM8M4RDBCCT2T / 8MHz 3225 | |
| Y2 | Crystal | Two pin crystal |