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UM0277 Datasheet(PDF) 5 Page - STMicroelectronics

Part # UM0277
Description  Getting started with the Cold Thermostat Kit based on AC switches and ST7LITE MCU
PDF  32 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

UM0277 Datasheet(HTML) 5 Page - STMicroelectronics

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UM0277
Kit introduction
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1.2
Board presentation
Figure 2 shows the STEVAL-IHT001V1 board and the main components used on this board.
Figure 2.
Power board (top view)
This board mainly embeds (refer to Appendix C for the complete schematic):
●
A capacitor power supply. The average output current of the capacitor power supply is
approximately 25 mA with he embedded 1µF C3 capacitor (for a 230V-50Hz Line RMS
voltage)
●
A ST7LITE39F2 MCU
●
AC Switches: one ACS102-6TA, one ACS110-7SB2 and one ACST6-7ST to control
respectively a light bulb, a defrost resistor or fan, and a compressor
●
ON/OFF LED. This LED switches ON when the board is powered
●
Temperature order visualization. Three LEDs indicate the temperature order using
three different settings: low, medium and high
●
BP1 Push Button, to change the temperature order setting
●
Transducer (or buzzer) to warn the user if the door is opened for an extended time
●
SCI connector, for communication between the board and a computer (using the GUI
software)
●
An In-Dart connector, to load the firmware in the MCU
Warning:
To avoid electrical shock through the computer, if the In-Dart
connector is used to connect a computer, the STEVAL-
IHT001V1 board must be plugged into an insulated mains
plug.
Temperatureorder
visualization
BP1PushButton
(temperatureselection)
J1connector (ACmains)
ON/OFF
Led
SCI connector
Transducer
ACS/ ACST
Power
supply
capacitor
ST7Lite
MCU
Temperatureorder
visualization
BP1PushButton
(temperatureselection)
J1connector (ACmains)
ON/OFF
Led
SCI connector
Transducer
ACS/ ACST
Power
supply
capacitor
ST7Lite
MCU
J1connector (ACmains)
ON/OFF
Led
SCI connector
Transducer
ACS/ ACST
Power
supply
capacitor
ST7Lite
MCU



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