BD7F200HFN-LB Datasheet, PDF (1/31 Pages) Rohm – Optocoupler-less Isolated Flyback Converter

Datasheet
Optocoupler-less
Isolated Flyback Converter
BD7F200HFN-LB BD7F200EFJ-LB
General Description
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.
Key Specifications
Supply Voltage of Operation:
SW Terminal Operating Voltage:
Over Current Limit:
Switching Frequency:
Reference Voltage Accuracy:
Quiescent Current:
Operating Current:
Junction Temperature of Operation:
8V to 40V
50V (Max)
2.75A (Typ)
400kHz (Typ)
±1.5% (Typ)
0µA (Typ)
2mA (Typ)
-40°C to +125°C
Packages
HSON8
HTSOP-J8
W(Typ) D(Typ) H(Max)
2.90mm x 3.00mm x 0.60mm
4.90mm x 6.00mm x 1.00mm
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)
HSON8
HTSOP-J8
Application
 Industrial equipment Isolated Power Supply
O Product structure : silicon monolithic integrated circuit
www.rohm.com
© 2016 ROHM Co., Ltd. All rights reserved.
TSZ22111・14・001
O This product has no designed protection against radioactive rays
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TSZ02201-0J1J0AZ01220-1-2
24.Mar.2016 Rev.002