View source for ExtraTech HP80 Stepper Motor Driver Card

== Overview ==

Proprietary stepper drive built with discrete components, attached as daughter cards to an [[ExtraTech PoleStar HP4 Controller|ExtraTech HP4]] controller motherboard.

== Bill of Materials ==

{| class="wikitable"
! Name
! Marking
! Part
|-
| H1
| 2x20 2mm female header 4.4mm tall
| [https://www.digikey.com/en/products/detail/molex/0791077019/699219 Molex 0791077019]<br/>[https://www.digikey.com/en/products/detail/sullins-connector-solutions/NPPN202AFCN-RC/804800 Sullins NPPN202AFCN-RC] (similar)
|-
| U6
| (Linear Technology logo) LTDS e3
| [https://www.digikey.com/en/products/detail/analog-devices-inc/LT1720CMS8-PBF/891144 Linear Technology LT1720CMS8#PBF]
|-
| ? (2 pcs)
| (Analog Devices logo) D 38
| [https://www.digikey.com/en/products/detail/analog-devices-inc/AD5310BRMZ-REEL7/760483 Analog Devices AD5310BRMZ-REEL7]
|-
| ?
| (Fairchild logo) PH5AB 74ACTQ245
| [https://www.digikey.com/en/products/detail/rochester-electronics-llc/74ACTQ245SJX/11540616 Fairchild 74ACTQ245SJX]
|-
| ? (4 pcs)
| IR2110S 801P (International Rectifier logo)
| [https://www.digikey.com/en/products/detail/infineon-technologies/IR2110SPBF/856502 Infineon IR2110SPBF]
|-
| ? (8 pcs)
| WE 217 PAT NO.361317
| [https://www.digikey.com/en/products/detail/wakefield-vette/217-36CTE6/1033769 Wakefield-Vette 217-36CTE6]
|-
| ? (14 pcs)
| 106 35K 745
| [https://www.digikey.com/en/products/detail/kyocera-avx/TAJD106K035RNJV/11201650 KYOCERA TAJD106K035RNJV]
|-
| R1,R2,R17,R18
| R020
| [https://www.digikey.com/en/products/detail/susumu/RL7520WT-R020-F/432666 Susumu RL7520WT-R020-F]
|-
| R14,R26
| 470 (0603 package)
| [https://www.digikey.com/en/products/detail/yageo/RC0603FR-0747RL/727252 YAGEO RC0603FR-0747RL]
|-
| ? (4 pcs)
| (C unk logo US1G
| [https://www.digikey.com/en/products/detail/vishay-general-semiconductor-diodes-division/US1G-E3-5AT/2149375 Vishay US1G-E3/5AT]
|-
| ?
| AMP
| [https://www.digikey.com/en/products/detail/te-connectivity-amp-connectors/1217056-1/1131396 TE 1217056-1]
|}

TODO: C23 and C24, and various resistors/capacitors