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PDF BP3319M Data sheet ( Hoja de datos )
| Número de pieza | BP3319M | |
| Descripción | PSR Single-Stage APFC Offline LED Controller | |
| Fabricantes | BPS | |
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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.
Typical Application
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 Light
PAR30, PAR38 LED Lamp
T8/T10 LED String
Other LED Lighting
NP NS
AC
NA
BP3319M
6 VCC
NC 7
2 FB
NC 4
1 COMP GATE 5
8 GND
CS 3
BP3319M_EN _DS_Rev 1.1
Figure 1. Typical application circuit for BP3319M
www.bpsemi.com
Bright Power Semiconductor Co. Confidential – Customer Use Only
1
1 page  
BP3319M
PSR Single-Stage APFC Offline LED Controller
Symbol
Parameter
Conditions
Min Typ Max Units
VCOMP
VCOMP_OVP
COMP Linear Operating
Voltage Range
COMP Protection
Threshold
1.5 3.5
3.6
V
V
Driver Section
ISOURCE_MAX
ISINK_MAX
GATE pin Maximum
Sourcing Current
GATE pin Maximum
Sinking Current
200 mA
600 mA
Thermal Regulation Section
TREG
Thermal Regulation
Temperature
150 ℃
Note 4: production testing of the chip is performed at 25°C.
Note 5: the maximum and minimum parameters specified are guaranteed by test, the typical value are guaranteed by design, characterization and statistical
analysis
BP3319M_EN _DS_Rev 1.1
www.bpsemi.com
Bright Power Semiconductor Co. Confidential – Customer Use Only
5
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet BP3319M.PDF ] | |
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