STEVAL-IHT004V1 Datasheet, PDF (1/5 Pages) STMicroelectronics – AC timer demonstration board on HT triacs and ST7Lite1b

STEVAL-IHT004V1
AC timer demonstration board on HT triacs and ST7Lite1b
Data brief
Features
■ 3 independent application programs
– Hand dryer with infrared sensor and
T1235H-6T switch
– Bathroom fan with humidity sensor and
ACS108 switch
– Multi-entrance room controller with push
button and BTB08-600SW switch
■ Two potentiometers for setting sensor
sensitivity and TRIAC turn-off delay
■ Capacitive power supply (680 nF capacitor
EPCOS B32923C3684
– 5 V ±10%
– Average output current: 16 mA
– Standby power losses < 0.3 W @ 230 V
■ Program selector (U2)
■ ICC connector for software adjustment
■ Free development area with hole matrix
available for application breadboard adaptation
■ Overvoltage protection is not implemented on
the board but some solder pads are available
to implement it in two different ways:
■ Varistor addition between mains voltage
■ Transil addition between TRIAC A2-G
terminals
■ RoHS compliant
STEVAL-IHT004V1
Description
The purpose of the demonstration board is to
promote the various types of applications where a
single AC switch is controlled in on/off full-phase
mode. The switch control is based on information
from a single sensor evaluated by an MCU.
July 2009
Doc ID 16016 Rev 1
For further information contact your local STMicroelectronics sales office.
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www.st.com
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