Datasheet

LV5026MC
No.A2042-10/16
Bleeder current cuircuit for TRIAC dimmer
1. Operating voltage setting
ACS pin voltage set operating voltage at OUT2. ACS pin threshold volage is 3V typ.
OUT2 operating voltage is set by R1 and R2. R1 and R2 is determined below.
ACS = Vac ×
R2
R1+R2
2. Bleeder current setting
Rd set hold current at Triac dimmer.
Bleeder current is set at Rd depending on Triac dimmer.
a blockdiagram in outline a blockdiagram in outline
ACS
VACS
(3V typ)
+
-
OUT2
Rd
R2
R1
VAC voltage is Low,
OUT2 is High voltage
Triac dimmer, OFF
Bleeder circuit, ON (OUT2; high)
VACS (3V typ)
min
on
min
on
ononon
on on offoffoff
Vac
ACS
OUT2
OUT