| Parameters | 
                                
                                                                                                            
                                            | Factory Lead Time | 
                                            4 Weeks | 
                                        
                                                                            
                                            | Mount | 
                                            Surface Mount | 
                                        
                                                                            
                                            | Mounting Type | 
                                            Surface Mount | 
                                        
                                                                            
                                            | Package / Case | 
                                            8-SMD (7 Leads), Gull Wing | 
                                        
                                                                            
                                            | Number of Pins | 
                                            7 | 
                                        
                                                                            
                                            | Operating Temperature | 
                                            -40°C~150°C TJ | 
                                        
                                                                            
                                            | Packaging | 
                                            Tube | 
                                        
                                                                            
                                            | Published | 
                                            2008 | 
                                        
                                                                            
                                            | Series | 
                                            TOPSwitch®-HX | 
                                        
                                                                            
                                            | JESD-609 Code | 
                                            e3 | 
                                        
                                                                            
                                            | Part Status | 
                                            Active | 
                                        
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 
                                            4  (72 Hours) | 
                                        
                                                                            
                                            | Number of Terminations | 
                                            8 | 
                                        
                                                                            
                                            | Terminal Finish | 
                                            PURE MATTE TIN | 
                                        
                                                                            
                                            | Power (Watts) | 
                                            30W | 
                                        
                                                                            
                                            | Subcategory | 
                                            Switching Regulator or Controllers | 
                                        
                                                                            
                                            | Power Rating | 
                                            54W | 
                                        
                                                                            
                                            | Max Power Dissipation | 
                                            54W | 
                                        
                                                                            
                                            | Technology | 
                                            CMOS | 
                                        
                                                                            
                                            | Terminal Position | 
                                            DUAL | 
                                        
                                                                            
                                            | Peak Reflow Temperature (Cel) | 
                                            250 | 
                                        
                                                                            
                                            | Number of Functions | 
                                            1 | 
                                        
                                                                            
                                            | Terminal Pitch | 
                                            2.54mm | 
                                        
                                                                            
                                            | Time@Peak Reflow Temperature-Max (s) | 
                                            40 | 
                                        
                                                                            
                                            | JESD-30 Code | 
                                            R-PDSO-G8 | 
                                        
                                                                            
                                            | Number of Outputs | 
                                            1 | 
                                        
                                                                            
                                            | Output Voltage | 
                                            12V | 
                                        
                                                                            
                                            | Analog IC - Other Type | 
                                            ANALOG CIRCUIT | 
                                        
                                                                            
                                            | Nominal Supply Current | 
                                            1.2mA | 
                                        
                                                                            
                                            | Output Power | 
                                            35W | 
                                        
                                                                            
                                            | Topology | 
                                            Flyback | 
                                        
                                                                            
                                            | Control Mode | 
                                            VOLTAGE-MODE | 
                                        
                                                                            
                                            | Frequency - Switching | 
                                            66kHz | 
                                        
                                                                            
                                            | Internal Switch(s) | 
                                            Yes | 
                                        
                                                                            
                                            | Fault Protection | 
                                            Current Limiting, Over Temperature, Over Voltage | 
                                        
                                                                            
                                            | Max Duty Cycle | 
                                            83 % | 
                                        
                                                                            
                                            | Max Supply Voltage (AC) | 
                                            265V | 
                                        
                                                                            
                                            | Duty Cycle | 
                                            78% | 
                                        
                                                                            
                                            | Output Isolation | 
                                            Isolated | 
                                        
                                                                            
                                            | Voltage - Breakdown | 
                                            700V | 
                                        
                                                                            
                                            | Min Supply Voltage (AC) | 
                                            85V | 
                                        
                                                                            
                                            | Height | 
                                            3.68mm | 
                                        
                                                                            
                                            | Length | 
                                            9.83mm | 
                                        
                                                                            
                                            | Width | 
                                            6.6mm | 
                                        
                                                                            
                                            | Radiation Hardening | 
                                            No | 
                                        
                                                                            
                                            | RoHS Status | 
                                            RoHS Compliant | 
                                        
                                                                                                    
                            
                         
                                                TOP255GN Overview
A ac to dc converter of the package 8-SMD (7 Leads), Gull Wing contains the ac to dc converter.In Tube case, the ac dc converter is available.There is a mounting point for this AC/DC converter in the way of Surface Mount .The ac dc converter needs to be operated at -40°C~150°C TJ °C in order to perform.The AC DC converter uses a type ANALOG CIRCUIT analog integrated circuit.When the switching frequency reaches 66kHz , the circuit is closed.In total, there are 8  terminations.There are 7  pins on this ac/dc converter.Surface Mount are the recommended mounting method for the ac dc converters.This AC to DC converter belongs to the TOPSwitch?-HX family of manufacturers.There are 1  outputs to be processed.AC to DC converter is contained in Switching Regulator or Controllers .The voltage output by this AC/DC converter is 12V .35W is the output power of a coverter.Across the converter, the minimum supply voltage is 85V .There is 265V  maximum supply voltage across the converter.
TOP255GN Features
Packaged with 8-SMD (7 Leads), Gull Wing
Switching Frequency at 66kHz
With 7 pins
TOP255GN Applications
There are a lot of Power Integrations TOP255GN AC DC Converters applications. 
- DVD players
 - Rice Cooker
 - Battery Chargers
 - Standby Power Supply
 - Standby Power for General Off-Line Applications 
 - White goods
 - Set -Top Box (STB) Power Supply
 - Low power ac?dc Adapters for Chargers
 - WiFi Wireless
 - Home appliances