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Rohm Semiconductor Electronic Components Datasheet

BD7F100EFJ-LB Datasheet

Optocoupler-less Isolated Flyback Converter

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BD7F100EFJ-LB pdf
Datasheet
Optocoupler-less
Isolated Flyback Converter
BD7F100HFN-LB BD7F100EFJ-LB
General Description
This product guarantees long time supply availability in
the industrial instrumentation market.
BD7F100 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:
3V to 40V
50V (Max)
1.25A (Typ)
400kHz (Typ)
±1.5%
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
© 2014 ROHM Co., Ltd. All rights reserved.
TSZ2211114001
O This product has no designed protection against radioactive rays
1/28
TSZ02201-0J1J0AJ00910-1-2
29.Jun.2016 Rev.002


Rohm Semiconductor Electronic Components Datasheet

BD7F100EFJ-LB Datasheet

Optocoupler-less Isolated Flyback Converter

No Preview Available !

BD7F100EFJ-LB pdf
BD7F100HFN-LB BD7F100EFJ-LB
Typical Application Circuit
VIN
VIN
SDX/EN
SW
BD7F100HFN-LB
COMP
FB
AGND REF PGND
Pin Configuration
AGND 1
SDX/EN 2
COMP 3
REF 4
(TOP VIEW)
8 VIN
7 SW
6 PGND
5 FB
Pin Descriptions
Pin No. Pin Name
1 AGND
2 SDX/EN
3 COMP
4 REF
5 FB
6 PGND
7 SW
8 VIN
Function
Analog system GND
Shutdown/Enable control
Load Current Compensation of the output voltage set up
Output voltage setup
Output voltage setup
Power system GND
Switching Output
Power supply
VOUT+
VOUT-
www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
2/28
TSZ02201-0J1J0AJ00910-1-2
29.Jun.2016 Rev.002


Part Number BD7F100EFJ-LB
Description Optocoupler-less Isolated Flyback Converter
Maker ROHM
Total Page 30 Pages
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BD7F100EFJ-LB pdf
BD7F100EFJ-LB Datasheet PDF
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