OCP8155 Converter Datasheet

OCP8155 Datasheet, PDF, Equivalent


Part Number

OCP8155

Description

High Precision Primary-side Feedback Constant Current Converter

Manufacture

Orient Chip

Total Page 8 Pages
Datasheet
Download OCP8155 Datasheet


OCP8155
OCP8155
„ 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.
High Precision Primary-side Feedback
Constant Current Converter
„ Feature
z Internal 650V Power MOSFET
z Primary-side Feedback Technology,
No Secondary-side Feedback Circuit Required
z No Loop Compensation
z ±3% Constant Current Accuracy
z 85VAC~265VAC Universal Input Voltage
z LED Open/Short Circuit Protection
z FB to GND Short Circuit Protection
z Over-temperature Protection
z Under-voltage Lockout Function
z CS Resistance Open Circuit Protection
z Operating Temperature RangeTA=-40 ~ 85
z Available in DIP-8L Package
„ Application
z LED Fluorescent Lamp
z E27Par LampDown Light
z LED BulbSpot Light
z Other LED Lighting
„ Typical Application
Figure 1, Typical Application for OCP8155
Page 1 - 8
Ver 1.0 April. 01, 2013

OCP8155
„ Pin Configuration
DIP-8L
OCP8155
„ Pin Definition
Name
CS
CS
FB
VCC
GND
GND
SW
SW
Pin No.
DIP-8L
1
2
3
4
5
6
7
8
Description
Primary-side Output Current Pin.
Current Sense Input Pin.
Connect the feedback dividing resistors and auxiliary
winding to detect output voltage.
Power Supply Pin. Connect a bypass capacitance nearly.
Signal Ground
Signal Ground
Switch Node
Switch Node
„ Electrical Block Diagram
Figure 2, OCP8155 Internal Block Diagram
Page 2 - 8
Ver 1.0 April. 01, 2013


Features OCP8155 „ Description OCP8155 is a hig h precision constant current LED driver IC with an integrating 650V power MOSF ET, designed for offline flyback consta nt current LED lighting within 18W outp ut power, and suitable for universal in put voltage from 85VAC to 265VAC. IC ad opts DIP-8L package. OCP8155 utilizes p rimary-side feedback technology to achi eve excellent line regulation and load regulation without TL431, optical coupl ing and feedback circuit, greatly savin g the system cost and size. OCP8155 is provided with perfect protection functi ons. The chip detects the VCC pin for o ver-voltage detection, and once detecti ng an over-voltage signal, the chip ent ers a “Hiccups” mode to limit outpu t power. Meanwhile the chip also includ es LED open/short circuit protection, F B short circuit protection, under-volta ge lockout and over-temperature protect ion functions to guarantee the entire s ystem work safely and stably in harsh w orking environment. High Precision Primary-side Feedback Const.
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