BD7F100EFJ-LBE2 ROHM

Datasheet Optocoupler-less Isolated Flyback Converter BD7F100HFN-LB BD7F100EFJ-LB General Description Key Specifications This product guarantees long time supply availability in Supply Voltage of Operation: 3V to 40V the industrial instrumentation market. SW Terminal Operating Voltage: 50V (Max) Over Current Limit: 1.25A (Typ) BD7F100 is an optocoupler-less Isolated Flyback Switching Frequency: 400kHz (Typ) Converter. An optocoupler or the tertiary winding Reference Voltage Accuracy: 1.5% feedback circuit which was needed to obtain a stable Quiescent Current: 0A (Typ) output voltage isolated by a transformer in the Operating Current: 2mA (Typ) conventional application becomes unnecessary, thus, Junction Temperature of Operation: -40C to +125C the number of parts is reduced drastically, producing a small-sized and high-reliability application isolated type Packages W(Typ) D(Typ) H(Max) power supply. HSON8 2.90mm x 3.00mm x 0.60mm HTSOP-J8 4.90mm x 6.00mm x 1.00mm 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. 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. HTSOP-J8 High-speed load response is realized and external HSON8 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) Application Industrial equipment Isolated Power Supply O Product structure : silicon monolithic integrated circuit O This product has no designed protection against radioactive rays w ww.rohm.com TSZ02201-0J1J0AJ00910-1-2 2014 ROHM Co., Ltd. All rights reserved. 1/28 TSZ2211114001 17.Apr.2017 Rev.003 BD7F100HFN-LB BD7F100EFJ-LB Typical Application Circuit VOUT+ VIN VIN SDX/EN VOUT- SW BD7F100HFN-LB COMP FB AGND REF PGND Pin Configuration (TOP VIEW) AGND VIN 1 8 SW SDX/EN 2 7 3 6 PGND COMP REF 4 5 FB Pin Descriptions Pin No. Pin Name Function 1 AGND Analog system GND 2 SDX/EN Shutdown/Enable control 3 COMP Load Current Compensation of the output voltage set up 4 REF Output voltage setup 5 FB Output voltage setup 6 PGND Power system GND 7 SW Switching Output 8 VIN Power supply www.rohm.com TSZ02201-0J1J0AJ00910-1-2 2014 ROHM Co., Ltd. All rights reserved. 2/28 TSZ2211115001 17.Apr.2017 Rev.003