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ME2206 Datasheet Preview

ME2206 Datasheet

3W High Power White LED

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3W High Power White LED ME2206
Ver04
3W High Power White LED ME2206
General Description
Features
The ME2206 is a set-up DC-DC converter
that delivers a regulated output current. The
device switches at a 1MHz constant
frequency,allowing for the use of small value
external inductor and ceramic capacitors.
The ME2206 is targeted to be used for
driving loads up to 1A from a two-cell alkaline
battery. The LED current can be programmed
by the external current sense resistor, Rs,
connected between the feedback pin (FB) and
ground. A low 95mV feedback voltage reduces
the power loss in the Rs for better efficiency.
During the shutdown mode, the feedback
resistor Rs and the load are completely
disconnected and the current consumption is
reduced to less than 1uA.
Applications
l White LED Torch (Flashlight)
l White LED Camera Flash
l DSC(Digital Still Camera)Flash
l Cellular Camera Phone Flash
l PDA Camera Flash
l Camcorder Torch(Flashlight) Lamp
l LED Power Efficiency: up to 90%
l Current Accuracy: ±10%
l Low Start-Up Voltage: 0.9V(ILED270m A)
l Low Hold Voltage:0.75V(ILED200m A)
l 1MHz Switching Frequency
l Uses small, Low Profile External
Components
l Low RDS(ON) : 100mΩ (TYP.)
l Open LED Protection
l Over Temperature Protection
l Low Profile SOT-23-6 Package
l Pb-Free Package
Typical Application
Rs Resistor Value Selection
TYP.mΩ
127
270
ILED (mA)
750
351.8
CS05FTGR127N(08051 TCR300,127 m Ω)
CS05FTGR270(08051
TCR300,270 mΩ
Precautions
ME2206 is only applicable to two battery-driven 1W or 3W white LED, ME2206A a battery can drive
1W or 3W white LED.
1/6




Microne

ME2206 Datasheet Preview

ME2206 Datasheet

3W High Power White LED

No Preview Available !

Tel: 0755-8398 3377 / 135 9011 2223 http://www.gofotech.com
3W High Power White LED ME2206
Ver04
Pin Configuration& Marking Information
Pin information
Pin Number
1
2
3
4
5
6
Name
SW
GND
FB
SHDN
VOUT
VIN
SOT23-6
Function
Switch
Ground
Feedback
Shut Down
Output
Input
Absolute Maximum Ratings
Parameter
Input Voltage
SW Pin Voltage
SHDN, FB Pin Voltage
Operating Temperature Range
Storage Temperature Range
Lead Temperature (Soldering, 10 sec)
Internal Power DissipatioSOT23-6
Symbol
VIN
SW
SHDN/FB
TOPR
TSTG
TL
PD
Ratings
0.3V~6V
0.3V~6V
0.3V~6V
40 ~85
65 ~125
260
400
Units
V
V
V
mW
2/6


Part Number ME2206
Description 3W High Power White LED
Maker Microne
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