STEVAL-IHT003V1 Datasheet, PDF (1/4 Pages) STMicroelectronics – Low-loss e-STARTER demonstration board for compressor starter circuits based on the ACST6

STEVAL-IHT003V1
Low-loss e-STARTER demonstration board for compressor
starter circuits based on the ACST6
Data Brief
Features
■ Suitable for refrigerator and freezer
compressor applications
■ Reduces PTC resistor power losses
Description
The e-STARTER demonstration board represents
an innovative solution patented by
STMicroelectronics to reduce the power losses
caused by positive temperature coefficient (PTC)
resistors in compressor starter circuits.
The solution features an ACST6 AC switch device
which is used to turn off the PTC current after
motor start-up. It should be noted that the
traditional PTC is still used in the electronic
starter circuit, as it increases the safety of the
circuit in cases of AC switch short-circuit or diode
mode failure (ref. EN60335-1).
The design allows the starter standby losses to be
reduced from (typ) 2.5 W to 380 mW for 230 V
applications, or 2.5 W to 40 mW for 100 V
applications.
Because this board is not a “plug and play”
solution, prior to using the board with a
compressor the PTC behavior must be checked
(especially VPTC1 & VPTC2 levels), and different
R4 resistor value may be required.
STEVAL-IHT003V1
July 2008
Rev 1
For further information contact your local STMicroelectronics sales office.
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www.st.com
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