BD7J200UEFJ-LBE2

BD7J200UEFJ-LBE2 is an isolated flyback converter IC with integrated switching MOSFET. This IC is an optocoupler-less isolated flyback converter. It is not necessary to use any optocouplers and feedback circuits by a third winding of transformers; these have been ever required to obtain a stable output voltage in former applications. Furthermore, the adoption of the original adapted type technology that controls on time makes the external phase compensation parts unnecessary, reduces a lot of parts number and minimizes applications, which realizes the designs of isolated power supply applications with high reliability. It features input under voltage lockout, over current protection, over voltage protection, short circuit protection, thermal shutdown, and battery short protection. It is used in applications like isolated power supply for industrial equipment.

• No need of any optocoupler and third winding of transformer
• Set output voltage with two external resistor and ratio of transformer turns
• Adopt of original adapted type technology that controls on time
• No need of external phase compensation parts by high-speed load response
• Low output ripple by fixed switching frequency, switching frequency is 400KHz typical
• High efficient light load mode (at PFM operation), shutdown and enable control
• Built-in 120V switching MOSFET, soft start function, load compensation function
• Supply voltage range from (VIN pin) 8V to 80V, over current detection current is 1.75A typical
• Current at shutdown is 10μA maximum, current at switching operation is 2.8mA typical
• Operating temperature range from -40°C to +125°C, HTSOP-J8 package