Optocoupler-less Isolated Flyback Converter - BD7F200HFN-LB | ROHM Semiconductor - ROHM Co., Ltd.
Rohm Productdetail
Optocoupler-less Isolated Flyback Converter - BD7F200HFN-LB
This product guarantees long time supply availability in the industrial instrumentation market.
BD7F200 is an optocoupler-less Isolated Flyback Converter. An optocoupler or the tertiary winding feedback circuit which was needed to obtain a stable output voltage isolated by a transformer in the conventional application becomes unnecessary, thus, the number of parts is reduced drastically, producing a small-sized and high-reliability application isolated type power supply. Furthermore, a highly by the use of the Original Adapted-Type ON-Time Control Technology, it makes the external phase compensation parts become unnecessary, therefore a highly efficient isolated type power supply application can easily be produced.
Specifications:
FET
Integrated
Controller Type
PWM
Output Power [W]
5W@Vin=12V 10W@Vin=24V
Switch Current Limit(Typ.)[A]
2.75
Vin1(Min.)[V]
8.0
Vin1(Max.)[V]
40.0
SW frequency(Max.)[MHz]
400.0
Channel
1
Light Load mode
Yes
EN
Yes
Soft Start
Yes
Thermal Shut-down
Recovery
Under Voltage Lock Out
Yes
Operating Temperature (Min.)[°C]
-40
Operating Temperature (Max.)[°C]
125
Features:
- Guaranteed long time supply availability for Industrial Applications.
- No need for an optocoupler or a transformer tertiary winding.
The output voltage can be set by two external resistors and the transformer turns ratio. - Uses Original Adapted Type ON-Time Control Technology.
High-speed load response is realized and external phase compensation parts are unnecessary. - Fixed switching frequency and low output ripple
- Highly efficient light load mode available (PFM operation)
- Shutdown / Enable Control
- Built-in N-Channel MOSFET
- Soft start function
- Output load compensation function
- Protection functions:
VIN Under Voltage Lock-Out (VIN UVLO)
Over Current Protection (OCP)
Thermal Shutdown Protection (TSD)