FT825 Datasheet, PDF (1/12 Pages) List of Unclassifed Manufacturers – Primary-Side Control LED Driver with High PFC

Fremont Micro Devices
Preliminary FT825
Primary-Side Control LED Driver with High PFC
FEATURES
DESCRIPTION
 Primary Feedback Control Without Secondary
The FT825 is a primary-side-control offline LED
feedback Circuit
lighting controller which can achieve high power
 High Power Factor >0.9 Over the Universal
factor and accurate LED current for an isolated
Input
 High Current Accuracy ±3%
 Boundary Conduction Mode Operation
 Ultra-low Start Up Current
 Cycle-by-cycle Current Limit
 Over-voltage Protection
 Short-circuit Protection
 Under Voltage Lock Out
 Available in a SOP8/DIP8 Package
APPLICATIONS
 Isolated, Solid State Lighting
 Industrial and Commercial Lighting
 Residential Lighting
Fremont
lighting application in a single stage converter.
ly ^{The real current control method can control the LED}
current accurately from the primary side information.
n ^{It can significantly simplify the LED lighting system}
design by eliminating the secondary side feedback
O ^{components and the opto-coupler.}
The FT825 works in boundary conduction mode for
e _{reducing the MOSFET switching losses. The}
s _{extremely low start-up current and the quiescent}
U ^{current can reduce the power consumption thus}
lead to an excellent efficiency performance.
The multi-protection function of FT825 can greatly
A_{enhance the system reliability and safety. The}
S^{FT825 features over-voltage protection, short-circuit}
protection, cycle-by-cycle current limit, VCC UVLO
U ^protection.
The FT825 is available in SOP8/DIP8 Package.
© 2013 Fremont Micro Devices Inc.
Confidential Rev0.82
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