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PDF PT4223 Data sheet ( Hoja de datos )
| Número de pieza | PT4223 | |
| Descripción | 1-5W Primary Side CC Regulator | |
| Fabricantes | PowTech | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de PT4223 (archivo pdf) en la parte inferior de esta página. Total 3 Páginas | ||
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PT4223
1-5W Primary Side CC Regulator
GENERAL DESCRIPTION
The PT4223 is primary side constant current regulator,
which is designed for high performance and
cost-effective LED lighting applications. With
Powtech’s proprietary constant current compensation
technique accurate output current regulation is achieved
without the need of a secondary feedback circuitry.
Integrated primary inductance compensation circuitry
provides accurate constant current operation despite
variations in primary inductance. Excellent EMI
performance is achieved with frequency jittering
function together with soft driving control at totem pole
gate drive output.
The device integrates a high voltage power switch, an
oscillator, a current sense circuit, CC control circuit. It
also features a complete set of integrated protection
functions to protect against all fault conditions
including output open/short circuit, line under-voltage,
and over temperature shut down.
The PT4223 is available in an SOP-8package.
ORDERING INFORMATION
FEATURES
CC Without Secondary Feedback
Integrates 600V Power Switch
Inductance Compensation
Low Startup Current (<10uA)
Adjustable Primary Side Current limit
VCC/FB Over Voltage Protection
VCC/FB UVLO
Feedback Loop Open Circuit Protection
Over Temperature Protection
APPLICATIONS
Sub 5W LED lighting applications
PACKAGE
SOP-8，Pb free
TEMPERATURE
RANGE
-40℃ to 85℃
ORDERING PART NUMBER
PT4223ESOH
Note:
xxxxxX
Assembly Factory Code
Lot Number
TRANSPORT
MEDIA
2500/Tape and Reel
MARKING
PT4223
xxxxxX
TYPICAL APPLICATION CIRCUIT
AC IN
C1
R1
R2 C2
D1 T1
D3
R3
R4 R6
NC
CS
VCC
FB
DRAIN
DRAIN
GND
GND
C3
D2
C4 R5 DC out
China Resources Powtech (shanghai) Co. Ltd
PT4223_DS Rev EN1.4
WWW.CRPOWTECH.COM
Page 1
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| Páginas | Total 3 Páginas | |
| PDF Descargar | [ Datasheet PT4223.PDF ] | |
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