RED2543 is an advanced LLC Controller IC for high efficiency
low-cost Constant Voltage (CV) LED drivers up to 250W.
•
Target IC Application:
o
Low-cost passive PFC CV LED drivers up to 80W
o
High power active PFC CV LED drivers up to 250W
•
Resonant half-bridge topology for excellent EMI using
robust low-cost bipolar transistors
•
Optimised for optocoupler-based CV applications using
secondary sensing
•
50% duty cycle, variable frequency control of resonant
half-bridge
•
+/-5% accurate limiting of output current using primary
sensing regulation (PSR)
•
Boost current feature to ensure reliable startup with
constant power loads
•
Protection modes:
a.
Overload output including short-circuit
b.
No-Load Output
c.
Over-temperature shutdown
•
Low standby power
•
Small SOT23-6 IC package
Key Features
Order Details
•
Code RED2543AL-TR7
•
SOT23-6 package on 7” tape & reel
RED2543 is an advanced LLC
Controller IC for high efficiency low-
cost Constant Voltage (CV) LED
drivers up to 250W.
•
Target IC Application:
o
Low-cost passive PFC CV LED drivers up to 80W
o
High power active PFC CV LED drivers up to 250W
•
Resonant half-bridge topology for excellent EMI using
robust low-cost bipolar transistors
•
Optimised for optocoupler-based CV applications using
secondary sensing
•
50% duty cycle, variable frequency control of resonant
half-bridge
•
+/-5% accurate limiting of output current using primary
sensing regulation (PSR)
•
Boost current feature to ensures reliable startup with
constant power loads
•
Protection modes:
a.
Overload output including short-circuit
b.
No-Load Output
c.
Over-temperature shutdown
•
Low standby power
•
Small SOT23-6 IC package
Key Features
