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Std edition Chainable module for 75HC595 + TIP120

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License: GPL 3.0

Published Time: 2020-03-15 21:14:22
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Description

This PCB allows you tu use a 74HC595 switch register an 8 TIP120 transistors. That allows you to switch on and off 8 dc devices (up to 60V) with a microcontroller. They can be daisy-chained to increase the nuber of DC outputs at will while using only 3 GPIO pins.

design drawing
schematic diagram
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PCB
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ID Name Designator Footprint Quantity
1 1N4448 D0,D1,D2,D3,D4,D5,D6,D7 DO-35 8
2 M025MM JP1,JP2,JP3,JP4,JP5,JP6,JP7,JP8 SCREWTERMINAL-5MM-2 8
3 2.2K R0,R1,R2,R3,R4,R5,R6,R7 AXIAL-0.5 8
4 74HC595N U2 DIP16-2.54-20.32X5.84MM 1
5 POWER SH3,SH4 SCREWTERMINAL-5MM-3 2
6 DATA IN SH1 SCREWTERMINAL-5MM-3 1
7 DATA OUT SH2 SCREWTERMINAL-5MM-3 1
8 TIP 120 Q1,Q2,Q3,Q4,Q5,Q6,Q7,Q0 TO-220 8

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