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PDF BP3122 Data sheet ( Hoja de datos )
| Número de pieza | BP3122 | |
| Descripción | High Precision PSR Constant Current LED Driver | |
| Fabricantes | BPS | |
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Hay una vista previa y un enlace de descarga de BP3122 (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
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BP3122
High Precision PSR Constant Current LED Driver
Description
The BP3122 is a high precision primary-side feedback
and regulation controller for LED lighting, it operates
in constant current control mode and is designed to
work in inductor current discontinuous conduction
mode and especially suitable for flyback convertor
under universal input. The output power of system is
recommended to less than 5W.
The BP3122 integrates 650V power MOSFET. Since
adopting primary sense and feedback control
technology, the secondary sense and feedback circuit
is eliminated. The loop compensation components are
also removed while maintaining stability overall
operating conditions. It uses patent pending source
driver architecture and demagnetization sensing
technology, the operating current is very low, and it
doesn’t need the auxiliary winding for sensing the
output current and supplying the chip. The low
component counts and small system size are realized.
Since using the proprietary high accurate current sense
method, the BP3122 realizes ±5% accuracy of LED
current along with excellent line and load regulation.
The BP3122 offers rich protection functions including
LED open/short circuit protection, CS resistor short
circuit protection, over-temperature protection, VCC
under voltage protection.
Typical Application
Features
Built-in 650V Power MOSFET
Constant current control without secondary sense
and feedback circuit.
No Auxiliary winding for sensing and supplying
Ultra low operating current to improve efficiency
Universal input voltage
±5% LED current accuracy
LED short and open circuit protection
CS resistor short circuit protection
VCC under-voltage protection
Over temperature protection
Available in SOP-8 package
Applications
GU10/E27 LED bulb, spot light
Other LED lighting
http://www.DataSheet4U.com/
NP NS
AC
BP3122
4 OUT
3 VCC
1 CS
2 GND
NC 8
NC 7
DRAIN 6
DRAIN 5
BP3122_DS_Rev.1.1
Figure 1. Typical application circuit for BP3122
www.bpsemi.com
Bright Power Semiconductor Co. Confidential – Customer Use Only
1
1 page  
BP3122
High Precision PSR Constant Current LED Driver
Typical Performance Characteristics
Turn on threshold VS. Temperature
Turn off threshold VS. Temperature
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Start-up current VS. Temperature
Operation current VS. Temperature
BP3122_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 BP3122.PDF ] | |
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