PT2204 Datasheet | Powtech

DESCRIPTION The PT2204 is a primary side constant current/voltage regulator, targeted to sub 4W AC-DC power suppliers applications. 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 PT2204 to meet all the global energy efficiency and standby power requirements. The PT2204 provides accurate CV/CC regulation with built in pensation circuitry. Integrated line and primary inductance pensation ensures output current free of line voltage and primary inductance variations. More over, the integrated output cord resistance pensation further enhances output voltage accuracy. A plete set of integrated protection functions allows the PT2204 to protect against all fault conditions including output short circuit, line under-voltage, and over temperature shut down. The PT2204 is available in a SOP8 package. FEATURES z z z z z z z z z z z z CC and CV Control Without Secondary Feed back Eliminates pensation Network Standby power dissipation down to30 m W Integrates 600V Power switch pensates Line Voltage Variation pensates Inductor Variation in CC mode pensates Output Cable Resistance VCC/FB Over Voltage Protection Short Circuit Protection Line Under Voltage Protection Cycle by Cycle Current Limit Over Temperature Protection APPLICATIONS z z z AC-DC RCC chargers replacement Power Adapters and Battery Chargers Standby and Auxiliary Suppliers ORDERING INFORMATION PACKAGE SOP8 Note: xxxxx X Assembly Factory Code Lot Number TEMPERATURE RANGE -40℃ to 85℃ ORDERING PART NUMBER PT2204ESOH TRANSPORT MEDIA Tape and Reel MARKING PT2204 xxxxx X TYPICAL APPLICATION CIRCUIT D3 AC 85 264V C1 R2 C2 C4 R6 DC out R1 D2 5V/1A D1 STAR T VCC FB SW SW PT220 4 R3 CRC R4 C3 R5 China Resources Powtech (shanghai) Co. Ltd PT2204_DSB Rev EN0.1 .CRPOWTECH. Page 1 Free Datasheet...