DocID024503 Rev 1
21/27
UM1631
STEVAL-IHT005V2 schematic
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
GT
for the worst operating conditions:
Gate resistor calculation
Table 7. Test points definition
Name
Definition
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
DD
-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
R
g
1
1
R
g t
–
ol
100
---------------
+
-------------------------------
V
DD M
–
in
V
GT M
–
ax
–
V
OL
–
l
G
0
C
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