STEVAL-IHT005V1 STMICROELECTRONICS [STMicroelectronics], STEVAL-IHT005V1 Datasheet

STEVAL-IHT005V1

Manufacturer Part Number

STEVAL-IHT005V1

Description

3.3 V control of ACS/Triac with STM32

Manufacturer

STMICROELECTRONICS [STMicroelectronics]

Datasheet

1.STEVAL-IHT005V1.pdf (4 pages)

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Features

■

Description

The STEVAL-IHT005V1 demonstration board is

designed for the home appliance market, with a

focus on the demonstration of a robust solution

with a 3.3 V supplied 32–bit MCU. Target

applications are mid-end and high-end washing

machines, dishwashers, and dryers, with different

kinds of ACS/Triacs. The demonstration board is

based on the 48-pin 32-bit

STM32F100C4T6BMCU, running at 24 MHz (RC

December 2010

For further information contact your local STMicroelectronics sales office.

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 0.3 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 T1235H-6T and ACST12-7C 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 the board is supplied from

mains

“Green” LED for each ACS/ACST/Triac to

show the device is turned on

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

Doc ID 18344 Rev 1

3.3 V control of ACS/Triac with STM32

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 VIPer16L,

an offline converter with an 800 V avalanche

rugged power section, operating at 60 kHz. The

power supply provides negative 6 V in buck-boost

topology. The STEVAL-IHT005V1 can control two

high power loads up to 2640 W, thanks to the

T1235H, a 12 A 600 V high temperature Triac,

and up to 1840 W ACST12-7C, 12 A 700 V

overvoltage protected ACSTTM device. The high

power load control is based on phase angle

control. To limit the in-rush current and possible

current peaks, the demonstration board features a

soft-start routine and a smooth power change

function for the high power loads. The STEVAL-

IHT005V1 can also control 4 low power loads up

to 100 W, thanks to 3 ACS108-6S, 0.8 A 600 V

overvoltage protected ACSTM devices and a

Z0109, 1 A standard 4 quadrant 600 V Triac. The

demonstration board passed the pre-compliance

tests for EMC directives IEC 61000-4-4 (burst up

to 8 kV) and IEC 61000-4-5 (surge up to 2 kV).

When put in standby mode, the STEVAL-

IHT005V1 has an overall standby power

consumption below 300 mW at 264 V / 50 Hz.

STEVAL-IHT005V1

www.st.com

Data brief

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STEVAL-IHT005V1 Summary of contents

Page 1

... V avalanche rugged power section, operating at 60 kHz. The power supply provides negative buck-boost topology. The STEVAL-IHT005V1 can control two high power loads up to 2640 W, thanks to the T1235H 600 V high temperature Triac, and up to 1840 W ACST12-7C 700 V overvoltage protected ACSTTM device ...

Page 2

... Circuit schematic 1 Circuit schematic Figure 1. STEVAL-IHT005V1 demonstration board schematic diagram 2/4 Doc ID 18344 Rev 1 STEVAL-IHT005V1 ...

Page 3

... STEVAL-IHT005V1 2 Revision history Table 1. Document revision history Date 15-Dec-2010 Revision 1 Initial release. Doc ID 18344 Rev 1 Revision history Changes 3/4 ...

Page 4

... Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco - Philippines - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America 4/4 Please Read Carefully: © 2010 STMicroelectronics - All rights reserved STMicroelectronics group of companies www.st.com Doc ID 18344 Rev 1 STEVAL-IHT005V1 ...

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