| Parameters | 
                                
                                                                                                            
                                            | Topology | 
                                            Flyback | 
                                        
                                                                            
                                            | Frequency - Switching | 
                                            132kHz | 
                                        
                                                                            
                                            | Control Technique | 
                                            PULSE WIDTH MODULATION | 
                                        
                                                                            
                                            | Switcher Configuration | 
                                            SINGLE | 
                                        
                                                                            
                                            | Internal Switch(s) | 
                                            Yes | 
                                        
                                                                            
                                            | Fault Protection | 
                                            Current Limiting, Open Loop, Over Temperature, Over Voltage, Short Circuit | 
                                        
                                                                            
                                            | Max Duty Cycle | 
                                            65 % | 
                                        
                                                                            
                                            | Max Supply Voltage (AC) | 
                                            265V | 
                                        
                                                                            
                                            | Output Isolation | 
                                            Isolated | 
                                        
                                                                            
                                            | Voltage - Breakdown | 
                                            700V | 
                                        
                                                                            
                                            | Min Supply Voltage (AC) | 
                                            85V | 
                                        
                                                                            
                                            | Length | 
                                            9.575mm | 
                                        
                                                                            
                                            | Width | 
                                            7.62mm | 
                                        
                                                                            
                                            | Radiation Hardening | 
                                            No | 
                                        
                                                                            
                                            | RoHS Status | 
                                            RoHS Compliant | 
                                        
                                                                            
                                            | Factory Lead Time | 
                                            4 Weeks | 
                                        
                                                                            
                                            | Mounting Type | 
                                            Through Hole | 
                                        
                                                                            
                                            | Package / Case | 
                                            8-DIP (0.300, 7.62mm), 7 Leads | 
                                        
                                                                            
                                            | Surface Mount | 
                                            NO | 
                                        
                                                                            
                                            | Operating Temperature | 
                                            -40°C~150°C TJ | 
                                        
                                                                            
                                            | Packaging | 
                                            Tube | 
                                        
                                                                            
                                            | Published | 
                                            2009 | 
                                        
                                                                            
                                            | Series | 
                                            TinySwitch®-III | 
                                        
                                                                            
                                            | JESD-609 Code | 
                                            e3 | 
                                        
                                                                            
                                            | Part Status | 
                                            Active | 
                                        
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 
                                            1  (Unlimited) | 
                                        
                                                                            
                                            | Number of Terminations | 
                                            7 | 
                                        
                                                                            
                                            | ECCN Code | 
                                            EAR99 | 
                                        
                                                                            
                                            | Terminal Finish | 
                                            Matte Tin (Sn) | 
                                        
                                                                            
                                            | Power (Watts) | 
                                            28W | 
                                        
                                                                            
                                            | Power Rating | 
                                            21.5W | 
                                        
                                                                            
                                            | Max Power Dissipation | 
                                            28W | 
                                        
                                                                            
                                            | Terminal Position | 
                                            DUAL | 
                                        
                                                                            
                                            | Number of Functions | 
                                            1 | 
                                        
                                                                            
                                            | Terminal Pitch | 
                                            2.54mm | 
                                        
                                                                            
                                            | Pin Count | 
                                            8 | 
                                        
                                                                            
                                            | JESD-30 Code | 
                                            R-PDIP-T7 | 
                                        
                                                                            
                                            | Number of Outputs | 
                                            1 | 
                                        
                                                                            
                                            | Output Voltage | 
                                            12V | 
                                        
                                                                            
                                            | Analog IC - Other Type | 
                                            SWITCHING REGULATOR | 
                                        
                                                                            
                                            | Nominal Supply Current | 
                                            445μA | 
                                        
                                                                            
                                            | Output Current | 
                                            1A | 
                                        
                                                                            
                                            | Output Power | 
                                            21.5W | 
                                        
                                                                            
                                            | Control Features | 
                                            EN | 
                                        
                                                                                                    
                            
                         
                                                TNY278PG Overview
A ac to dc converter of the package 8-DIP (0.300, 7.62mm), 7 Leads contains the ac to dc converter.It is available in Tube  AC/DC power converter.Through Hole is mounted in the way of this AC/DC converter.The ac dc converter should be operated at a temperature of -40°C~150°C TJ °C to deliver its optimal performance.The AC DC converter utilizes a type SWITCHING REGULATOR analog IC.The switching frequency reaches 132kHz .A total of 7 terminations have been recorded.The pins of the ac-dc converter count up to 8 .It is a member of TinySwitch?-III  manufacturer family.A total of 1 outputs are to be processed.The output current is set to 1A .The voltage output by this AC/DC converter is 12V .In the AC to DC transformer of a coverter, the output power is 21.5W .A minimum voltage of 85V is required across the converter.Across the converter, the maximum supply voltage is 265V .
TNY278PG Features
Packaged with 8-DIP (0.300, 7.62mm), 7 Leads
Switching Frequency at 132kHz
Output Current at 1A 
TNY278PG Applications
There are a lot of Power Integrations TNY278PG AC DC Converters applications. 
- Remotely-controlled appliances
 - Linear Adapter Replacements
 - IoT Applications
 - Air Conditioning
 - Adapter/Charger for  Cordless Phones
 - Battery chargers for media tablets
 - Auxiliary Power Supply
 - Standby power
 - Standby power supplies for VCR
 - Power adapters for network devices