BD7F100UEFJ-LB (New)
Optocoupler-less Isolated Flyback Converter
BD7F100UEFJ-LB (New)
Optocoupler-less Isolated Flyback Converter
This product guarantees long time supply availability in the industrial instrumentation market. BD7F100UEFJ-LB 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.
This IC uses different production line against series model BD7F100EFJ-LB for the purpose of improving production efficiency. We recommend using this IC for your new development. Electric characteristics noted in Datasheet does not differ between Production Line. In addition, the data of BD7F100EFJ-LB is disclosed for documents and design models unless otherwise specified.
Product Detail
Specifications:
FET
Integrated
Controller Type
PWM
Output Power [W]
1W@Vin=5.0V 5W@Vin=24V
Switch Current Limit(Typ.)[A]
1.25
Vin1(Min.)[V]
3
Vin1(Max.)[V]
40
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]
4.9x6.0 (t=1.0)
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)
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