Schematics

D D

C C

B B

A A

SEQUENTMICROSYSTEMS.COM

MOUNTING HOLES

2.5mm NUTS

18mm STANDOFFS ANTISTATIC BAG

10cm X 15cm

M2.5x5mm SCREWS

Block Diagram 2.0

SMART FAN FOR RASPBERRY PI

1 3Monday, January 11, 2021

Title

Size Document Number Rev

Date: Sheet of

B1PROCESSOR

SDA

SCL

GND

3.3V

+5V

FAN

B2RPI CONNECTOR

+5VSDA

SCL

GND

3.3VFAN

SDA

FAN

SCL

3.3V

+5V +5V

3.3V

BAG1

N3 SC2

N1 N4 SC3 SC4

H4H2

SC1

PAGE 1
5 4 3 2 1 D D PROCESSOR C 3.3V FAN +5V SDA GND +5V B1 RPI CONNECTOR FAN SDA SCL SCL B2 FAN 3.3V SDA +5V SCL 3.3V C +5V GND 3.3V B B MOUNTING HOLES S1 S2 S3 18mm STANDOFFS A N1 N2 N3 N4 H1 BAG1 S4 ANTISTATIC BAG 10cm X 15cm SC1 SC2 SC3 2.5mm NUTS H4 A Title SC4 SMART FAN FOR RASPBERRY PI Document Number Block Diagram Rev 2.0 M2.5x5mm SCREWS Date: 4 H3 SEQUENTMICROSYSTEMS.
PAGE 2
5 4 3 2 1 D D J2 SCL 1 3 5 7 SWDIO +5V D1 R1 330 3.3V C 2 4 6 8 SDA SWCLK 3.3V U1 SWCLK 1 PB7 SWCLK 8 2 VDD SWDIO 7 SWDIO FAN 3 VSS SDA 6 SDA PA0 SCL 5 SCL 4 C STM32G031J6M6 GND C2 C4 .1uF .1uF B B A A SEQUENTMICROSYSTEMS.COM Title SMART FAN FOR RASPBERRY PI Size A Date: 5 4 3 Document Number Processor Monday, January 11, 2021 2 Rev 2.
PAGE 3
5 4 3 2 1 TP1 +12V + FAN D2 D D C1 SK56B L1 SW 5V to 12V 6 5 VIN NC 4 EN GND U2 SW FB 1 R2 TP2 82K 3 0.6V R4 2 C3 22uF 6.8 uH +5V 22uF C J3 4.3K Q1 C FAN 20V/3A R3 4.3K J4 J1 3.3V SDA SCL SDA SCL B SW1 RDPB GND R5 A 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 +5V B PI-CONN Title 4.3K SMART FAN FOR RASPBERRY PI Size A Date: 5 4 A SEQUENTMICROSYSTEMS.