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PDF PT4219 Data sheet ( Hoja de datos )
| Número de pieza | PT4219 | |
| Descripción | Primary Side Offline LED Controller | |
| Fabricantes | PowTech | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de PT4219 (archivo pdf) en la parte inferior de esta página. Total 2 Páginas | ||
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PT4219
Primary Side Offline
LED Controller with Active PFC
GENERAL DESCRIPTION
The PT4219 is a primary side constant current
controller which can achieve high power factor in a
single stage converter, targeted to applications in solid
state lighting. It is designed for the flyback topology,
and regulates output current accurately without the
secondary feedback loop.
PT4219 works in quasi-resonant mode to reduce the
MOSFET switching loss. The device uses extremely
low startup and low quiescent current to achieve high
efficiency.
A complete set of integrated protection functions allows
the PT4219 to protect against all fault conditions such
as VCC under-voltage, VCC over-voltage, cycle by
cycle current limit, output open/short circuit, Rcs open
circuit, transformer winding short circuit and over
temperature shut down.
The PT4219 is available in SOP8 package.
FEATURES
Constant Current Control Without Secondary Feed
back
Accurate Constant Current Output
Quasi-Resonant Mode Operation
Ultra-low（10uA）Start Up Current
Low Quiescent Current (1mA)
VCC Under Voltage Protection
Over Voltage Protection by Voltage Holding
Cycle by Cycle Current Limit
Rcs Open Circuit Protection
Transformer Winding Short Circuit Protection
Output Open/Short Circuit Protection
Over Temperature Protection
APPLICATIONS
Solid State Lighting
Industrial and Commercial Lighting
Residential Lighting
ORDERING INFORMATION
PACKAGE
SOP-8
TEMPERATURE
ORDERING PART NUMBER
RANGE
-40℃ to 85℃
PT4219ESOH
TRANSPORT
MEDIA
3000/Tape and Reel
TYPICAL APPLICATION CIRCUIT
MARKING
PT4219
xxxxxX
AC
85~264V
Rst
R11
C1 R12
D1
R3
C3
R4
VCC
VINS
COMP
GND
DET
NC
DRV
CS
R2 C2
D2
Rcs
D3
C4 R6
China Resources Powtech (shanghai) Co. Ltd
PT4219_DS Rev EN1.0
WWW.CRPOWTECH.COM
Page 1
1 page | ||
| Páginas | Total 2 Páginas | |
| PDF Descargar | [ Datasheet PT4219.PDF ] | |
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