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BP3319M

BPS
Part Number BP3319M
Manufacturer BPS
Description PSR Single-Stage APFC Offline LED Controller
Published Nov 7, 2014
Detailed Description BP3319M PSR Single-Stage APFC Offline LED Controller Description The BP3319M is a high precision primary-side regulation...
Datasheet PDF File BP3319M PDF File

BP3319M
BP3319M

Overview
BP3319M PSR Single-Stage APFC Offline LED Controller Description The BP3319M is a high precision primary-side regulation PWM controller with single stage Active PFC, specially designed for universal input offline flyback or buck-boost constant current LED lighting.
The controller with on-chip PFC circuit achieves high power factor and low THD.
Operating in critical conduction mode, the power MOSFET switching loss is reduced and the inductor is fully utilized.
The BP3319M adopts proprietary primary side current sensing scheme.
It can precisely control the LED current without secondary side sense and feedback circuits.
The system size and cost are optimized, as well as the system reliability.
The BP3319M utilizes patented line and load voltage compensation method to achieve excellent line and load regulation.
And the line compensation factor can also be tuned externally for flexibility.
The BP3319M offers rich protection functions to improve the system reliability, including LED open circuit protection, LED short circuit protection, VCC over voltage protection, VCC under voltage protection, CS resistor open protection and cycle by cycle current limit.
All the protection functions are auto-recovery.
The system reliability is further improved by the thermal regulation function.
The output current is reduced when the controller is over temperature.
Features               Single-Stage Active PFC for High Power Factor and Low THD Primary Side Control Constant Current Operation, No Opto-Coupler required ± 3% LED Current Accuracy Excellent Line and Load Regulation Critical Conduction Mode Operation Ultra-Low (33uA) Startup Current High Resistance Feedback Resistor for Improved Efficiency LED Open and Short Circuit Protection CS Resistor Open Circuit Protection Cycle-by-Cycle Current Limit VCC Over-voltage and Under-voltage Protection Auto Fault Recovery Thermal Regulation Function Available in Tiny SOP-8 package Applications     E27/ GU10 LED Bulb, Spot L...


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