STEVAL-ILL004V1 STMicroelectronics, STEVAL-ILL004V1 Datasheet - Page 8

• Manufacturer Part Number: STEVAL-ILL004V1
• Description: EVAL BOARD PHASE CONTROL DIMMER
• Manufacturer: STMicroelectronics
• Type: Power Management: Lighting and Ballast Controllerr

Specifications of STEVAL-ILL004V1

• Design Resources: STEVAL-ILL004V1 Gerber Files STEVAL-ILL004V1 Bill of Material STEVAL-ILL004V1 Schematic
• Contents: Fully Assembled Evaluation Board
• Product: Display Modules
• For Use With/related Products: ST7FLITE09
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 497-5081

Universal motor speed control
2.2.3
2.2.4
2.2.5
8/38
TRIACs and AC switches for the light dimmer and motor speed control for mains voltage 230
V
Table 1.
Power supply circuit
The power supply circuit (R6, R7, R10, C4, ZD1, D1, and C5) supplies the microcontroller. If
both neutral and phase lines are available on the board, the maximum output current with
the input voltage of 230 V is 11.08 mA (see the equations in section
power consumption of the microcontroller is about 5.5 mA (measured value), so 11.08 mA is
really enough to supply it. It is also important to reduce consumption of the microcontroller,
when the light dimmer is switched off. In this case, the microcontroller enters Halt mode and
an ultra low power consumption is achievable. The consumption of the microcontroller on
the evaluation board is 350
speed control elements connected to the board), it is possible to use the C4 lower-supply
capacitor (220 nF).
Zero crossing detector
The ZCD is made from components R1, R2, and C2, and the signal is connected to the PA0
port of the microcontroller. The I
microcontroller, making it easier to configure the switch feature (either push-button or
potentiometer).
Driving the TRIAC
Several ports of the microcontroller (PA0, PA1, PA2, PA3, PA4 and PA5 are high sink) have
high-current capability of up to 20 mA, which in some applications is enough current to drive
the TRIAC directly with just one port. If it is not enough power to switch on the TRIAC, there
- High (dI/dt)
- Limited cooling conditions
- High ITSM (non repetitive
surge peak on-state current)
due to inrush current
- Low IH (holding current=>
sensitive gate TRIAC) to avoid
risk of flickering due to LC filter
oscillations
- High ITSM (non repetitive
surge peak on-state current) for
cold filament effect and
flashhover effect during bulb
failure
ac
Application requirements
Application requirements
are shown in the
Recommended ST TRIACs and AC switches
Table 1
µ
A in halt mode. For this type of load (with the universal motor
below.
Motor speed control applications
60 to 600 W
CC
< 1200 W
< 1600 W
> 1600 W
< 700 W
Light dimmer applications
Power
Power
connector is provided on the board to program the
BTB12-600BW
BTB08-600SW Non-Insulated
BTB12-600SW Non-Insulated
BTB16-600BW
BTA08-600SW Insulated AC Switch
BTA12-600SW Insulated AC Switch
T1235H-600T High Temperature (T
T1635H-600T High Temperature (T
ACST8-8C
Device
Device
Section
Feature
Feature
2.3). The total
JMAX
JMAX
=150 °C)
=150 °C)
AN2263