BD7J201HFN-LB
内置开关MOSFET的低功耗隔离型反激式转换器IC
BD7J201HFN-LB
内置开关MOSFET的低功耗隔离型反激式转换器IC
本产品是能够保证向工业设备市场长期供应的产品，是不需要光耦的隔离型反激式转换器。使用本产品，将不再需要以往应用中为了获得稳定的输出电压而需要的由光电耦合器或变压器辅助绕组组成的反馈电路。此外，通过采用ROHM自有的自适应导通时间控制技术，也不再需要外置相位补偿器件，从而可以使隔离式电源设计所需的元器件数量显著减少，并且能够实现小型化和更高可靠性。
主要规格
特性：
FET
Integrated
Controller Type
PWM
Output Power [W]
5W@Vin=24V 10W@Vin=48V
Switch Current Limit(Typ.)[A]
1.8
Vin1(Min.)[V]
8
Vin1(Max.)[V]
80
SW frequency (Max.)[kHz]
400
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
Package Size [mm]
2.9x3 (t=0.6)
特点：
- No Need of Any Optocouplers and Third Winding of Transformers
- Set Output Voltage with Two External Resistors and Ratio of Transformer Turns
- Adopt of Original Adapter 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 (At normal operation)
- High Efficient Light Load Mode (At PFM operation)
- Shutdown and Enable Control
- Built-in 120 V Switching MOSFET
- Soft Start Function
- Load Compensation Function
- Various Protection Function
Input Under Voltage Lockout (VIN UVLO)
Over Current Protection (OCP)
Over Voltage Protection (OVP)
Short Circuit Protection (SCP)
Thermal Shutdown (TSD)
Battery Short Protection (BSP)
Enable Over Voltage Protection (ENOVP)
