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# DDMC Stepper Daughter 

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This is a repository for a *Motherboard Board* from the [DDMC](https://gitlab.cba.mit.edu/jakeread/ddmc) project. 
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![board](board.png)
![schem](schematic.png)

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![parts](parts.png)

Reference Designator | Package | Type | Value | Digikey Part Number | Function | Cost
--- | --- | --- | --- | --- | --- | ---  
C9, C10, C11 | 0603C | Capacitor | 0.1uF | - | Bypass | -
C8, C12 | 0805C | Capacitor | 1uF | Bypass, Linear Output | - 
C1, C2, C3, C4, C5, C6, C7, C13, C14, C15, C16, C17, C18, C19, C20 | 1206C | Capacitor | 10uF | - | Bypass | - 
R3 | 0805R | Resistor | 10K | - | Driver Enable Pullup (Safety) | -
R1 | 0805R | Resistor | 1K | - | RTD Voltage Divider Base | -
U1 | SOT23 | RTD | 1K | 223-1563-1-ND | Temperature Variable Resistor | - 
U2 | QFN32 | IC | TMC262 | 1460-1069-6-ND | Gate Driver and Step Controller | - 
R2, R4 | 2512R | Shunt Resistor | CRA2512-FZ-R100ELFCT-ND | Sense Resistors | - 
Q1, Q2, Q3, Q4 | SO8 Power | PN Pair of MOSFETs | TSM6502CRRLGDKR-ND | Power Switches | - 
J2 | 60 Pin Mezzanine Connector | Hirose FX8-60P-SV1(91) | H10691-ND | Mounting to Motherboard | 2.48
J4, J5 | M3 Screw Terminal | Wurth  9774040360R  | 732-5271-1-ND | Mounting | -