STEVAL-IHM020V1 STMicroelectronics, STEVAL-IHM020V1 Datasheet - Page 10

• Manufacturer Part Number: STEVAL-IHM020V1
• Description: BOARD DEMO STCC08 AC SW DETECTOR
• Manufacturer: STMicroelectronics
• Type: Motor / Motion Controllers & Driversr

Specifications of STEVAL-IHM020V1

• Main Purpose: Power Management, Triac Controller
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: STCC08, ST7FLITE39F2
• Primary Attributes: AC Switch Driver with Failure Mode Detector
• Secondary Attributes: 4 Toggle Switches for Failure Simulation, Capacitive Power Supply
• Input Voltage: 5 V
• Product: Power Management Modules
• Silicon Manufacturer: ST Micro
• Silicon Core Number: STCC08
• Kit Application Type: Power Management
• Application Sub Type: AC Switch Failure Mode Detector
• Kit Contents: Board Docs
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: ST7LITE39F2
• Other names: 497-8403

Features
3
3.1
Note:
3.2
Table 3.
10/23
MCU
LEDs (two LEDs maximum
can be ON at the same time)
Maximum current consumed
by STCC08 (include the gate
current of the ACS)
Others (mechanical switch)
Total
Device
Features
ST7LITE39F2 microcontroller
The 8-bit MCU used in this board is the ST7LITE39F2. It belongs to the ST7 family of
microcontrollers, and offers a large number of features at minimum cost.
●
●
The MCU firmware has been developed only to evaluate the STCC08 device and is not
compliant with the class B (IEC60335-1 Ed4) requirements.
DC capacitive power supply
A DC capacitive power supply is used on the board. One peculiarity of this DC power supply
is that it is “negative”. The V
voltage is 5 V below neutral. Such a connection is mandatory to drive the ACS. Indeed, the
ACS can only be triggered by a negative current (i.e. sourced from the gate). The maximum
average current absorbed by the board is about 44 mA (see
C16 capacitor value has been used to ensure that the board works correctly in the worst
application conditions (230 V/110 V
Maximum average current sunk by the board
Note that a 43.2 Ω R
temperature must be 0 °C in order to work correctly the board. For lower ambient
The peripheral hardware requirements are reduced to a minimum:
–
–
In the MCU firmware, four options must be set:
–
–
–
–
No quartz or external resonator is used. Instead, an internal RC-oscillator in the
ST7LITE3 is used to generate the clock
No external RESET circuit is used
Software watchdog activation
RC oscillator selection
PLL disabled
Low voltage detection selection
2.5 mA
15 mA
26 mA
0.5 mA
44 mA
consumption
Average
current
IG
resistor (R23) value is used. In this case, the minimum ambient
CC
LED STCC08 controlled
LEDs visualizing the ACS failure
R
V
R
Maximum supply current in run mode. F
V
terminal is connected to neutral. This means that the GND
CC_MAX
CC_Max
19
IG
=R
= 43.2 ± 1% (R23)
RMS
20
= R
=5.5 V
=5.5 V, temperature = 0° C
line voltage ± 10% and V
21
= R
22
=475 Ω ± 1%
Comments
Table
CC
CPU
3). In this case, a 2.2 µF
± 10%).
=1 MHz and V
CC
UM0583
=5.5 V