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OB3330 Datasheet

High Performance LED Lighting Driver

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OB3330
High Performance LED Lighting Driver
GENERAL DESCRIPTION
The OB3330 is power factor correction,
primary-side-control LED lighting driver with
advanced features to provide high efficiency
control for lighting applications.
OB3330 features an internal start-up timer for
stand-alone applications, an analog multiplier for
power factor correction (PFC), zero current
detectors (ZCD) to ensure transition mode (TM)
operation, a current sensing comparator with
built-in leading-edge blanking, and a totem pole
output.
OB3330 offers great protection coverage including
VCC under voltage lockout (UVLO), VCC over
voltage protection, load voltage over voltage
protection, Level selectable cycle-by-cycle current
limiting, over temperature protection, LED
open/short circuit protection and gate drive output
clamping for external power MOSFET protection.
FEATURES
Primary-Side Control with Single Stage PFC
Topology
Minimized BOM Count
Transition Mode (TM) Operation to Achieve
High Efficiency
Analog multiplier for Power Factor Correction
High Current Accuracy
Cycle-by-Cycle Current Limiting (OCP)
Selectable Threshold of OCP
VCC Over Voltage Protection
Output Over Voltage Protection
Over-temperature Protection
LED Open Circuit Protection
LED Short Circuit Protection
Soft-start
VCC Under Voltage Lockout (UVLO)
Ultra-low Start-up Current
APPLICATIONS
LED Lighting
Industrial and Commercial lighting
Residential lighting
TYPICAL APPLICATION
Figure1: OB3330 Typical Application Schematic
©On-Bright Electronics
Confidential
-1-
Preliminary Datasheet
OB_DOC_DS_333000
On-Bright
On-Bright



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