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OB3613PAP Datasheet

High PF Non-Isolated Buck LED Lighting Power Switch

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OB3613x Series
High PF Non-Isolated Buck LED Lighting Power Switch
GENERAL DESCRIPTION
OB3613x is a high power factor, highly integrated
buck regulator with advanced features to provide
high efficiency control and high precision constant
current output for LED lighting applications.
OB3613x integrates a MOSFET to decrease
physical volume. The proprietary CC control
scheme is used and the system can achieve high
power factor with constant on-time control
scheme.
OB3613x offers comprehensive protection
coverage with auto-recovery features including
LED open loop protection, LED short circuit
protection, cycle-by-cycle current limiting, built-in
leading edge blanking, VDD under voltage lockout
(UVLO), etc.
OB3613x is offered in SOP8, SOP7 or DIP8
package.
FEATURES
Buck topology with high power factor
Integrated a HV MOSFET
High precision constant current regulation at
universal AC input
Low system cost and high efficiency
Quasi-Resonant operation
Programmable CC regulation
LED short circuit protection
LED open loop protection
Cycle-by-cycle current limiting
Built-in leading edge blanking (LEB)
VDD under voltage lockout with hysteresis
VDD over voltage protection
Over temperature protection (OTP)
APPLICATIONS
LED lighting
TYPICAL APPLICATION
~
AC
OB3613x
DRAIN
CS
DRAIN
COMP
FB
GND
VDD
Figure1: OB3613x Typical Application Schematic
©On-Bright Electronics
Confidential
-1-
Datasheet
OB_DOC_DS_3613XA4
On-Bright
On-Bright



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