DatasheetsPDF.com

PT4223

PowTech
Part Number PT4223
Manufacturer PowTech
Description 1-5W Primary Side CC Regulator
Published Mar 24, 2014
Detailed Description PT4223 1-5W Primary Side CC Regulator GENERAL DESCRIPTION The PT4223 is primary side constant current regulator, which i...
Datasheet PDF File PT4223 PDF File

PT4223
PT4223

Overview
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.
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 ORDERING INFORMATION PACKAGE SOP-8，Pb free TEMPERATURE RANGE -40℃ to 85℃ ORDERING PART NUMBER PT4223ESOH TRANSPORT MEDIA 2500/Tape and Reel MARKING PT4223 xxxxxX Note: xxxxxX Assembly Factory Code Lot Number TYPICAL APPLICATION CIRCUIT D2 R2 C2 C4 R5 DC out AC IN C1 R1 D1 T1 NC CS D3 R3 DRAIN DRAIN GND GND PT4223 VCC FB R4 R6 C3 China Resources Powtech (shanghai) Co.
Ltd PT4223_DS Rev EN1.
4 WWW.
CRPOWTECH.
COM Page 1 Free Datasheet http://www.
0PDF.
com PT4223 1-5W Primary Side CC Regulator PIN ASSIGNMENT 1 2 3 4 NC DRAIN 8 7 6 5 PT4223 CS DRAIN VCC GND FB GND SOP8 PIN DESCRIPTIONS PIN No.
SOP8 1 2 3 4 5,6 7,8 PIN NAMES NC CS VCC FB GND ...


Similar Datasheet


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site. (Privacy Policy & Contact)