Description
OCP8155 is a high precision constant current LED
driver IC with an integrating 650V power MOSFET,
designed for offline flyback constant current LED
lighting within 18W output power, and suitable for
universal input voltage from 85VAC to 265VAC.
IC adopts DIP-8L package. OCP8155 utilizes
primary-side feedback technology to achieve excellent
line regulation and load regulation without TL431,
optical coupling and feedback circuit, greatly saving the
system cost and size.
OCP8155 is provided with perfect protection
functions. The chip detects the VCC pin for
over-voltage detection, and once detecting an
over-voltage signal, the chip enters a “Hiccups” mode
to limit output power. Meanwhile the chip also includes
LED open/short circuit protection, FB short circuit
protection, under-voltage lockout and over-temperature
protection functions to guarantee the entire system
work safely and stably in harsh working environment.

Feature
Internal 650V Power MOSFET
Primary-side Feedback Technology,
No Secondary-side Feedback Circuit Required
No Loop Compensation
±3% Constant Current Accuracy
85VAC~265VAC Universal Input Voltage
LED Open/Short Circuit Protection
FB to GND Short Circuit Protection
Over-temperature Protection
Under-voltage Lockout Function
CS Resistance Open Circuit Protection
Operating Temperature Range：TA=-40 ~ 85℃
Available in DIP-8L Package
Application
LED Fluorescent Lamp
E27、Par Lamp、Down Light
LED Bulb、Spot Light
Other LED Lighting