Test Point Lists; Gate Resistor Calculation - STMicroelectronics STEVAL-IHT005V2 User Manual

3.3 v control of acs/triac with stm32
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UM1631
A.3

Test point lists

A.4

Gate resistor calculation

The gate resistor value must be defined within the equation below to ensure to apply a gate
current higher than specified I
Gate resistor calculation
Table 7. Test points definition
Name
G_T1
Control signal of T1 (T1635H)
ZVC
"Zero Voltage Crossing" signal
-6 V
Reference of SMPS output voltage
N_VDD
Neutral reference and V
-3.3 V
Reference for MCU power supply
A2_T1
A2 terminal of T1
VDD
MCU power supply voltage
OUT_T2
OUT terminal of T2 (ACST16)
G_T3
Control signal of T3 (Z0109)
A2_T3
A2 terminal of T3
G_T2
Control signal of T2 (ACST16)
G_ACS1
Control signal of ACS1
OUT_ACS1
OUT terminal of ACS1
G_ACS2
Control signal of ACS2
OUT_ACS2
OUT terminal of ACS2
G_ACS3
Control signal of ACS3
OUT_ACS3
OUT terminal of ACS3
Line
LINE voltage
GT
1
R
------------------------------ -
g
R
g t – ol
1
+
-------------- -
100
DocID024503 Rev 1
DD
for the worst operating conditions:
V
V
V
DD M
– in
GT M
– ax
OL
----------------------------------------------------------------- -
l
0C
G
STEVAL-IHT005V2 schematic
Definition
21/27

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