FT838MBD Datasheet, PDF (1/12 Pages) List of Unclassifed Manufacturers – High Efficiency Off-Line CC/CV Switch

Fremont Micro Devices
Preliminary FT838MBD/838MDD
High Efficiency Off-Line CC/CV Switch
FEATURES
DESCRIPTION
 Constant-Current (CC) and
The FT838MBD/FT838MDD controller device is
Constant-Voltage (CV) with Primary Side
optimized for high-performance, low power
Control
 Proprietary technology enabling high
efficiency and fast dynamic response
l  No audible noise over entire operating
range
tia ^{ Built-in power MOS}
 Built-in Cable Compensation
 Built-in Line Compensation
n  Primary-side feedback eliminates
opto-coupler and TL431
e  Cycle-by-Cycle Current Limiting
 Over Temperature Protection
fid ^{ VCC Over Voltage Protection}
 CV Open-loop Protection
 Excellent capacitive loading start-up
n ^performance
Co ^{TYPICAL APPLICATION}
switching mode power supply applications. The
FT838MBD/FT838MDD facilitates CC/CV
charger design by eliminating an opto-coupler
and TL431. Its highly integrated functions such
as Under Voltage Lockout (UVLO), Leading
Edge Blanking (LEB) and built-in cable
compensation offer the users a high efficiency
and low cost solution for AC/DC power
applications.
Power
supplies
built
with
FT838MBD/FT838MDD can achieve both high
average efficiency， fast dynamic load response
and super low standby power.
Furthermore, FT838MBD/FT838MDD features
fruitful protections like Open Circuit Protection
and Over Temperature Protection to eliminate
the external protection circuits and provide
reliable operations. FT838MBD/FT838MDD is




Adapter/Charger for Cell/Cordless Phones,
PDAs, MP3 and Other Portable Apparatus
D _{Standby and Auxiliary Power Supplies}
Set Top Boxes (STB)
Adapter for ADSL / WiFi Wireless
FM ^{AC/DC LED Driver applications}
available in DIP8 package.
© 2013 Fremont Micro Devices Inc. Confidential Rev0.80
DS838MBD/MDD-A0-Page1