997
edits
Changes
Jump to navigation
Jump to search
Line 4:
Line 4: + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
UTEK UT-2127 RS-232 to RS-485 Converter (view source)
Revision as of 07:04, 25 August 2021
, 07:04, 25 August 2021added bill of materials
Isolated (supposedly optically) RS-232 to RS-485 converter, useful for controlling VFD's over half-duplex Modbus, though the converter supports full duplex.
Isolated (supposedly optically) RS-232 to RS-485 converter, useful for controlling VFD's over half-duplex Modbus, though the converter supports full duplex.
== Bill of Materials ==
{| class="wikitable"
! Name
! Package
! Marking
! Description
! Link
|-
| U1,U4
| SOIC-8
| SP3485E; 1749L; T17210
| half-duplex RS-485 transceiver
| [https://www.digikey.com/en/products/detail/maxlinear-inc/SP3485EN-L/2411077 MaxLinear SP3485EN-L]
|-
| U3
| SOT-23-5
| L00A
| 3.3V ultra low dropout voltage regulator
| [https://www.digikey.com/en/products/detail/texas-instruments/LP2980AIM5-3-3/3698136 Texas Instruments LP2980AIM5-3.3]
|-
| U5,U6
| SOIC-14
| NXP HEF4093BT; CSA59001; TXD17383
| quad 2-input NAND Schmitt trigger
| [https://www.digikey.com/en/products/detail/nxp-usa-inc/HEF4093BT-652/13437749 NXP HEF4093BT,652]
|-
| U7
| SOIC-8
| [Top Power ASIC logo] TP7660; 1749H
| voltage converter
| [http://www.tpwic.com/uploadfile/2013/0620/20130620123230142.pdf Chinese datasheet]
|-
| R1,R3,R7
| 0603
| 472
|
|
|-
| R4,R8,R9
| 0603
| 472
|
|
|-
| R5,R6
| 0603
| 122
|
|
|-
| C3
|
| 226C; 83EH0
|
|
|-
| C2,C5,C6
|
| 106C; 20EH4
|
|
|-
| C1,C4,C7,C10,C11,C12
| 0603
|
|
|
|-
| C8, C9
| "B" size
| 106C; 10FN0
|
|-
| Q2,Q3,Q4,Q6
| SOT-23
| C3
|
|
|-
| Q1,Q5
| SOT-23
| M6
|
|
|-
| D1,D2
| ?
| M4
|
|
|-
| ZD1,ZD22,ZD4,ZD5
|
| [B logo] C803; AK
|
|
|-
| ZD3
|
| SS24
|
|
|-
| JP1
|
| ZHONGB; ZB126; 300V 10A; CE 20-14 AWG
| (Ningbo Zhongbo Photovoltaic Technology Co., LTD) 6-position 5.0mm pitch screw terminal block
| [http://www.nbzhongbo.com/bookpic/20141110131211265.pdf datasheet] [https://www.megasan.com/Product/DownloadFile?downloadId=375674 datasheet (alt)]
|-
| JP2
|
|
| female DE-9 solder cup connector (PCB mounted though!)
|
|-
| JP3
|
|
| small (~4mm OD) DC barrel jack
|
|-
| T1
|
| UTEK 05S05S-W1
|
|
|}
== Online Resources ==
== Online Resources ==