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  • The STEVAL-IHT001V2 thermostat kit provides a robust and low-cost ST solution (microcontroller and AC switches) to control refrigerators, freezers or fridge/freezer combinations.

    Basic, defrost, and air circulation versions are configurable in order to address the low-end and medium-end cooling appliances market. It allows the control of a single-phase induction motor and a light bulb, and optionally, a defrost resistor and a fan, working on 220/240 VRMS, 50/60 Hz mains voltage. The thermostat kit is operational with 100/120 V RMS 50/60 Hz but the supply capacitor value must be modified.
    The board can operate in an ambient temperature range from 0 °C to 60 °C.
    The exact maximum temperature depends on the power of the loads. For demonstrative purposes a graphic user interface (GUI) has been developed.
    The connection between the PC and STM8S microcontroller, the MCU performing thermostat regulation, is achieved through a USB bus.
    As the STM8S is a low-cost MCU without an embedded USB peripheral, an additional MCU (STM32) has been used as a bridge between the PC and STM8S MCU, for demonstrative purposes only.

    Key Features

    • Low-cost solution for spark-free thermostats:
      • No need for a sealed version
      • Low-cost STM8S microcontroller for thermostat control
      • Low-cost capacitive power supply
    • High efficiency:
      • Refrigerator consumption reduction by adjusting and reducing the hysteresis threshold of the temperature
      • Improved efficiency by turning on the defrost resistor only when it's useful and not at each OFF cycle of the compressor (as done in some mechanical thermostats)
    • High system immunity:
      • Overvoltage protected ACS switches: ACST610-8FP for compressor control, ACS110-7SN for defrost resistor and ACS102-6TA for light bulb and fan
      • Class A criteria for IEC 61000-4-4 up to above 3 kV levels
    • Flexibility:
      • Development: program setting with PC interface to change firmware variables
      • Industrialization: end-of-production MCU programming thanks to FLASH, for soft upgrade and efficient MCU stock management
    • RoHS compliant

Sample & Buy

Part Number
Core Product
Marketing Status
Budgetary Price (US$)*
Quantity
ECCN (US)
Country of Origin
Order from Distributors
Order from ST
STEVAL-IHT001V2 ACST610; ACS110; ACS102; STM32F103C6; STM8S103F3
Active
221 1 3A991A2 ITALY No availability of distributors reported, please contact our sales office

STEVAL-IHT001V2

Core Product

ACST610; ACS110; ACS102; STM32F103C6; STM8S103F3

Marketing Status

Active

Unit Price (US$)

221.0*

Unit Price (US$)

221

Quantity

1

ECCN (US)

3A991A2

Country of Origin

ITALY

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

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Related Applications

Industrial Motor Control

Embedded Software

    • Part Number

      STEVAL-IHT001V2 thermostat setup

00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DB1651
      Cold thermostat kit based on AC switches and the STM8S
      3.0
      142.21 KB
      PDF
      DB1651

      Cold thermostat kit based on AC switches and the STM8S

    • Description Version Size Action
      UM1542
      Cold thermostat kit based on AC switches and the STM8S003F3
      1.1
      2.87 MB
      PDF
      UM1542

      Cold thermostat kit based on AC switches and the STM8S003F3

Hardware Resources

    • Description Version Size Action
      STEVAL-IHT001V2 gerber files 1.0
      286.9 KB
      ZIP

      STEVAL-IHT001V2 gerber files

    • Description Version Size Action
      STEVAL-IHT001V2 BOM 1.1
      51.12 KB
      PDF

      STEVAL-IHT001V2 BOM

    • Description Version Size Action
      STEVAL-IHT001V2 schematics 1.1
      122.87 KB
      PDF

      STEVAL-IHT001V2 schematics

Legal

    • Description Version Size Action
      Evaluation products license agreement 1.6
      74.12 KB
      PDF

      Evaluation products license agreement

Part Number Marketing Status Package Grade RoHS Compliance Grade WEEE Compliant Material Declaration**
STEVAL-IHT001V2
Active
CARD Industrial Ecopack2 -

STEVAL-IHT001V2

Package:

CARD

Material Declaration**:

Marketing Status

Active

Package

CARD

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

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