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Home » NEWEST Products » New by Manufacturer » STMicroelectronics » STEVAL-IHT005V2 DemoBoard - STM
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STMicroelectronics STEVAL-IHT005V2
Demonstration Board

STMicroelectronics STEVAL-IHT005V2 Demonstration Board with full 3.3 V ACS/Triac control using the STM32F100 provides a complete solution for home appliance applications based on STMicroelectronics™ components. The board enables designers to evaluate the feasibility of AC switch control with a 3.3 V supply. Special emphasis is placed on demonstration of a robust full 3.3 V solution, based on 4 kV level in class A during an IEC- 61000-4-4 (burst) test.

STEVAL-IHT005V2 is based on the 48-pin, 32-bit STM32F100C4T6B MCU running at 24 MHz (RC user-trimmable internal RC clock), featuring 16 kBytes of Flash memory, 12-bit A/D converter, 5 timers, communication interfaces, and 4 kBytes of SRAM. The power supply circuitry is based on the VIPer16L, an offline converter with an 800 V avalanche-rugged power section, operating at 60kHz. The power supply provides negative 6V in buck-boost topology. The STEVAL-IHT005V2 can control 2 high power loads up to 2830W thanks to the T1635H, a 16 A, 600V high temperature Triac and up to 2050W using the ACST1635-8FP, a 16 A, 800 V high temperature overvoltage-protected ACST device. The high power load control is based on phase-angle control. To limit inrush current and possible current peaks, the board features a soft-start routine and a smooth power change function for the high power loads. The STEVAL-IHT005V2 can also control 4 low power loads up to 100W thanks to 3 ACS108-8S, 0.8 A, 800 V overvoltage-protected ACS devices and a Z0109, 1 A standard 4 quadrant 600 V Triac.

Features
  • Complete solution for -3.3V control
  • Input voltage range: 90-265 VAC 50/60Hz
  • Negative 6 V/3.3 VDC aux power supply based on the VIPer16L in buck-boost topology
  • Total power consumption in standby mode 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
  • 1 x 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
  • 1 x Z0109 and 3 x ACS108 for full wave control of low power loads
  • Relay to demonstrate board noise robustness
  • Red LED to indicate board mains supply
  • Green LED for each ACS/ACST/Triac to indicate device on/off status
  • JTAG programming connector
  • External wire loop for gate current measurement
  • I2C bus hardware/software ready 
  • IEC 61000-4-4 pre-compliance test passed(burst up to 8 kV)
  • IEC 61000-4-5 pre-compliance test passed (surge up to 2 kV)
  • RoHS compliant

Schematic Diagram
STMicroelectronics STEVAL-IHT005V2 Schematic Diagram
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