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PT2203

PowTech
Part Number PT2203
Manufacturer PowTech
Description Primary Side CC/CV Regulator
Published Jul 19, 2014
Detailed Description PT2203 Primary Side CC/CV Regulator GENERAL DESCRIPTION The PT2203 is a primary side constant current/current voltage re...
Datasheet PDF File PT2203 PDF File

PT2203
PT2203

Overview
PT2203 Primary Side CC/CV Regulator GENERAL DESCRIPTION The PT2203 is a primary side constant current/current voltage regulator, targeted to applications in less than 5W AC-DC power suppliers.
It is designed for the flyback topology, and regulates output current/voltage without the secondary feedback loop.
In addition to providing the tight output regulation, the excellent low power control allows the PT2203 to meet all the global energy efficiency and standby power requirements.
The PT2203 provides accurate CV/CC regulation with built in compensation circuitry.
Integrated line and primary inductance compensation ensures output current free of line voltage and primary inductance variations.
More over, the integrated output cord resistance compensation further enhances output voltage accuracy.
A complete set of integrated protection functions allows the PT2203 to protect against all fault conditions including output short circuit, line under-voltage, and over temperature shut down.
The PT2203 is available in a SOP-8 package.
FEATURES z z z z z z z z z z z CC and CV Control Without Secondary Feed back Eliminates Compensation Network Built in 650V Power MOSFET Compensates Line Voltage Variation Compensates Inductor Variation in CC mode Compensates Output Cord Resistance Vaux Over Voltage Protection Short Circuit Protection Line Under Voltage Protection Cycle by Cycle Current Limit Over Temperature Protection APPLICATIONS z z z LED Power Suppliers Power Adapters and Battery Chargers Standby and Auxiliary Suppliers ORDERING INFORMATION PACKAGE SOP-8 Note: xxxxxX Assembly Factory Code Lot Number TEMPERATURE RANGE -40℃ to 85℃ ORDERING PART NUMBER PT2203ESOH TRANSPORT MEDIA Tape and Reel MARKING PT2203 xxxxxX TYPICAL APPLICATION CIRCUIT China Resources Powtech (shanghai) Co.
Ltd PT2203_DSB Rev EN0.
1 WWW.
CRPOWTECH.
COM Page 1 PT2203 Primary Side CC/CV Regulator PIN ASSIGNMENT VAUX START VDD FB 1 2 3 4 8 7 6 5 GND GND DRAIN DRAIN SOP-8 PIN DESCRIPTIONS PIN No.
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