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PDF BP3108 Data sheet ( Hoja de datos )
| Número de pieza | BP3108 | |
| Descripción | PSR LED Controller | |
| Fabricantes | BPS | |
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Hay una vista previa y un enlace de descarga de BP3108 (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
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Description
BP3108 is a primary side regulation (PSR) controller
with triac dimming designed for high brightness LED
driver. It’s extremely suitable to be used in flyback
converter operating in worldwide voltage range.
BP3108 works in discontinuous inductive current
mode. The patented control method dramatically saves
the system cost and size by eliminating all secondary
feedback circuitry and loop control compensation
circuitry. This control method also achieves excellent
line and load regulation.
BP3108 integrates the triac dimming control circuit
internally.Few external components are required to
achieve wide triac dimming range and good dimming
effect without visible flicker.
BP3108 integrates high precision current sense
circuitry, which achieves ±3% LED current accuracy.
BP3108 offers rich protection features including LED
short/open circuit protection, over-temperature
protection, under-voltage lockout, VCC over voltage
protection.
BP3108 is assembled in SOP-8 package.
Features
Triac Dimming
PSR constant current (CC) control，no secondary
feedback circuit required
±3% LED current accuracy
Ultra low operating current to improve efficiency
Low power consumption on FB resistor network
Worldwide voltage range
LED short/open circuit protection
VCC over voltage protection
Current sense resistor open circuit protection
Over temperature protection
No external loop compensation required
Applications
Triac dimming LED lighting
GU10/E27 LED bulb, spot light
LED PAR30/PAR38, down light
LED Tube
Other LED lighting
Typical Application
BP3108_DS_V0.2 Nov.2010
Figure 1 typical application circuit
www.bpsemi.com
Page 1
1 page  
VDIMPULL-UP Dim pull resistor
150 KΩ
Over temperature protection
TSD Thermal shutdown threshold
TSD-HYS
Thermal shutdown hysteresis
Gate Driver section
160 ℃
30 ℃
ISOURCE
Gate sourcing current
RDSOFF
Gate switch off resistor
Note4 : production testing of the chip is performed at 25°C.
100 mA
30 Ω
Note5: the maximum and minimum parameters specified are guaranteed by test, the typical value are guaranteed by design, characterization and statistical
analysis
Note6: refer to application information
BP3108_DS_V0.2 Nov.2010
www.bpsemi.com
Page 5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet BP3108.PDF ] | |
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