STEVAL-IHT006V1 Electronic thermostat for refrigerator with LED light based on the STM8S103F2P6, ACST830-8T and VIPer16LN Data brief Features Input voltage range: 195-265 VAC, 50/60 Hz -12 V / -5 V 180 mA SMPS based on VIPer16LN (negative power supply) Standby power consumption below 170 mW at 220 VAC 50 Hz Maximum output power: 200 W 20-pin, 8-bit STM8S103F2 MCU as the main controller Zero-voltage switching (ZVS) to synchronize MCU events with the voltage mains Compressor run winding driven by the ACST8, an overvoltage-protected AC switch 8/16-bit timers, communication interfaces and 640 Cabinet temperature selectable using the bytes EEPROM. potentiometer The power supply circuitry is based on the Cabinet temperature sensed by the NTC VIPer16LN, an offline converter with an 800 V thermistor avalanche-rugged power section, operating at Three 0.5 W 100 mA LEDs as replacement of 60 kHz. a 15 W incandescent light bulb The STEVAL-IHT006V1 is designed to drive Door switch input small-size or mid-size compressors up to 200 W using the ACST8, an 8 A 800 V overvoltage- Standard in-circuit programming connector protected AC switch. (SWIM - single wire interface module) IEC 61000-4-4 pre-compliance test passed Three 100 mA LEDs efficiently replace a 15 W (burst up to 8 kV) incandescent light bulb. IEC 61000-4-5 pre-compliance test passed The demonstration board has passed the internal (surge up to 2 kV) tests for EMC directives: IEC 61000-4-4 (burst up to 8 kV) and IEC 61000-4-4 (surge up to 2 kV). RoHS compliant In standby mode, the STEVAL-IHT006V1 has a Description standby power consumption below 170 mW at 220 VAC 50 Hz. The STEVAL-IHT006V1 is a low-cost demonstration board for the home appliance market. It is suitable to replace the mechanical thermostat and the incandescent light bulb in domestic refrigerators. The system employs the 8-bit STM8S103F2 microcontroller running at 16 MHz and featuring 4 kB of Flash memory, a 10-bit A/D converter, December 2011 Doc ID 022340 Rev 2 1/5 For further information contact your local STMicroelectronics sales office. www.st.com 5 Obsolete Product(s) - Obsolete Product(s) 25 ,+ / 0 (3 ) 4 . ( )- 0 (3 30) 3 + /3 0 (3 30) - 0 (3 30) - )3 0 (3 37)- . 0 (3 ) 4 %4 0 (3 ) . ( )- Schematic STEVAL-IHT006V1 1 Schematic Figure 1. Circuit schematic - part 1 6 - /-02%33/2 ,).% /-02%33/2 . , , 7 0 ,INE * &3 * * &3 &3 4 4 2 , , 7 0 4 ,INE 34 53% /-0/.%.43 2%- 2+ 6 / 2)6% 4 42 .3)340.0 ).34% /& 34. 0& 0 ( ..%, -/3&%4 ,5%3 - 2+% 3 4(% ,% 7)4( 34. /2 2 - 6 ,) (4). / /54 2 ).%4 N& , , 7 0 - 40 . 0& 34 34. 2 2 . 6 2 : . 6 7 40 2 . 2 40 40 :6 37)- 32 2 3 , ) 0 ) 3 0 6 N& / ) ( (3 0 4)- . 6 N& . 4.23 4.23 . 2 6 0 33 6 . 3 ( 3 0 0 ( (30 2 )24 48 5 04 28 52 0. /3 ) 4)-( . ). 5 - 3 & 034 4 0/ //2 4 . N& . N& .4 . 2 * * 0 2 6 6 .4 SENSOR 40/ /. /&& TEMP SETTING - 2/5 Doc ID 022340 Rev 2 Obsolete Product(s) - Obsolete Product(s) 4 + %%0 5 (3 0 /3 /54 42 .