DocID024503 Rev 1
5/27
UM1631
Board features and objectives
1.2 Board
features
The board key features and performances are
Complete solution for -3.3 V control
Input voltage range: 90-265 VAC 50/60 Hz
Negative 6 V/3.3 V VDC auxiliary power supply based on the VIPer16L in buck-boost
topology
Total power consumption in standby mode is lower than 0.5 W for 264 V/50 Hz
48-pin, 32-bit value line family STM32F100C4T6B MCU as main controller
Zero voltage switching (ZVS) interrupt to synchronize MCU events with voltage mains
1x T1635H-6T and 1 x ACST1635-8FP for phase control of high power loads
5 discrete power level states with soft change for phase angle controlled devices
1x Z0109 and 3x ACS108 for full wave control of low power loads
1x relay for demonstration of the board noise robustness
“Red” LED to show that the board is supplied from mains
“Green” LED for each ACS/ACST/Triac to show that the device is turned ON
JTAG programming connector
External wire loop for gate current measurement
I
2
C bus hardware/software ready
18 test pins
IEC 61000-4-4 precompliance test passed (burst up to 8 kV)
IEC 61000-4-5 precompliance test passed (surge up to 2 kV)
RoHS compliant
1.3 Targeted
applications
Targeted applications are mid-end and high-end washing machines, dishwashers, dryers,
and coffee machines.
Optionally, this board targets any home-appliance application where the STM32 MCU
controls any type of Triac/ACST/ACS.
1.4 Operating
conditions
The board operates in nominal line voltage 110 V/230 V in both 50/60 Hz power nets.
Line voltage: 90-264 V 50/60 Hz
Operating ambient temperature 0 °C to 60 °C
Nominal loads power (for 230 V voltage)
–
ACST1635-8FP - 2050 W
–
T1635H-6T - 2830 W
–
Z0109MA - 96 W
–
ACS108-8SA - 105 W
