FT8262DD Driver Datasheet

FT8262DD Datasheet PDF, Equivalent


Part Number

FT8262DD

Description

PSR Single-Stage AC-DC LED Driver

Manufacture

FMD

Total Page 16 Pages
Datasheet
Download FT8262DD Datasheet


FT8262DD
Fremont Micro Devices
Preliminary FT8260/1/2x
PSR Single-Stage AC-DC LED Driver with High PF
FEATURES
Primary side control without secondary
feedback circuit
Single-stage active PFC for high power factor
and low THD
High current accuracy ±3%
No Dimming (FT8260/2x)
Three-level ON/Off Dimming (FT8261x)
Ultra-low start up current
Cycle-by-cycle current limit
Over-voltage protection
Short-circuit protection
Over temperature protection
Under voltage lockout protection
APPLICATIONS
AC/DC LED driver applications
Signal and decorative LED light
E14/E27/PAR30/PAR38/GU10 LED lamp
T8/T10 LED String
DESCRIPTION
The FT8260/1/2x is a single stage
primary-side-control offline LED controller with high
power factor, low THD and excellent current
accuracy for isolated LED lighting applications.
The accurate current control from the primary side
significantly simplifies the LED lighting system
design by eliminating the secondary side feedback
components and the opto-coupler.
The extremely low start-up current and quiescent
current of FT8260/1/2x reduce the power
consumption, resulting in excellent efficiency.
The multi-protection function of the FT8260/1/2x
greatly enhances the system reliability and safety.
The FT8260/1/2x features fruitful protection
functions such as over-voltage protection,
short-circuit protection, cycle-by-cycle current limit,
over-temperature protection, VCC UVLO protection.
© 2014 Fremont Micro Devices Inc.
Confidential Rev0.86
DS8260/1x-A0-page1

FT8262DD
Fremont Micro Devices
TYPICAL APPLICATION CIRCUIT
Preliminary FT8260/1/2x
F1
VAC
85V— 265V
EM I
B1 C1 R1
R sn
D sn
C sn
Np
Df
Ns
C o1
C o2
Ra
Da
R2
Rd
(FT 8 2 61 x)
C2
U1
4
7
C4 R3
38
21
56
Rs
C3
N vcc
CY
LE D +
RL
LED-
F1
VAC
85V— 265V
EMI
B1 C1 R1
R sn
D sn
Csn Np
Df
Ns
Co1 Co2
R2
Rd
(FT8261) C2
C4 R3
C3
Ra
Da
U1
6
5
4
13
2
Nvcc
Q1
R4
Rs
CY
LED+
LED-
F1
VAC
85V— 265V
EM I
B1 C1 R1
R sn
D sn
C sn
Np
Df
Ns
C o1
C o2
Ra
Da
R2
Rd
(F T 8 2 6 1 )
C2
U1
7 ,8
5
C4 R3
36
24
1 Rs
C3
N vcc
CY
Figure 1: Typical Application Circuit
LED +
RL
LED -
© 2014 Fremont Micro Devices Inc.
Confidential Rev0.86
DS8260/1/2x-A0-page2


Features Fremont Micro Devices Preliminary FT826 0/1/2x PSR Single-Stage AC-DC LED Driv er with High PF FEATURES Primary side control without secondary feedback circ uit Single-stage active PFC for high po wer factor and low THD High current acc uracy ±3% No Dimming (FT8260/2x) Three -level ON/Off Dimming (FT8261x) Ultra-l ow start up current Cycle-by-cycle curr ent limit Over-voltage protection Short -circuit protection Over temperature pr otection Under voltage lockout protecti on APPLICATIONS AC/DC LED driver applic ations Signal and decorative LED light E14/E27/PAR30/PAR38/GU10 LED lamp T8/T1 0 LED String DESCRIPTION The FT8260/1/ 2x is a single stage primary-side-contr ol offline LED controller with high pow er factor, low THD and excellent curren t accuracy for isolated LED lighting ap plications. The accurate current contro l from the primary side significantly s implifies the LED lighting system desig n by eliminating the secondary side fee dback components and the opto-coupler. The extremely low start-u.
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