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SG Micro

SGM3134 Datasheet Preview

SGM3134 Datasheet

White LED Driver

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GENERAL DESCRIPTION
The SGM3134 low-dropout bias supply for white LEDs
is a high-performance alternative to the simple ballast
resistors used in conventional white LED designs. It is
optimized for low power keypad and portable
backlighting applications.
The SGM3134 uses an internal resistor to set the bias
current for four LEDs, which are matched to ±5%. The
SGM3134's advantages over ballast resistors include
much lower bias variation with supply voltage variation,
significantly lower dropout voltage, and in some
applications, significantly improved efficiency.
The SGM3134 requires only a 40mV dropout voltage at
a 20mA load on each output to match the LED
brightness.
The SGM3134 is available in Green SOT-23-6L package.
It operates over an ambient temperature range of -40to
+85.
SGM3134
White LED Driver with
Low Dropout Current Source
FEATURES
Support up to 4 LEDs
Low 40mV Dropout at 20mA
Less than ±5% LED Current Matching
Simple LED Brightness Control
Low Shutdown Current
2.5V to 5.5V Supply Voltage Range
Thermal Shutdown Protection
Operating Temperature Range: -40to +85
Available in Green SOT-23-6L Package
APPLICATIONS
Wireless Handsets
MP3, MP4, and PMP
Cellular Phones
Portable Communication Devices
Digital Cameras, Camcorders
PDAs, Palmtops, and Handy Terminals
LED/Display Back Light Driver
LEDs for Camera Flash
Battery-Powered Equipment
SG Micro Limited
www.sg-micro.com
REV. A




SG Micro

SGM3134 Datasheet Preview

SGM3134 Datasheet

White LED Driver

No Preview Available !

SGM3134
PACKAGE/ORDERING INFORMATION
White LED Driver with
Low Dropout Current Source
MODEL
ORDER NUMBER
PACKAGE
DESCRIPTION
SPECIFIED
TEMPERATURE
RANGE
PACKAGE
OPTION
MARKING
INFORMATION
SGM3134 SGM3134YN6G/TR
SOT-23-6L
-40°C to +85°C
Tape and Reel, 3000
S02XX
NOTE: Order number and package marking are defined as the follow:
ORDER NUMBER
MARKING INFORMATION
SGM3134 X X G / TR
S02 X X
Tape and Reel
Green Product
Month assembled ("A" = Jan. "B" = Feb. "L" = Dec.)
Year assembled ("9" = 2009, "A" = 2010 )
Package Type
N6 SOT-23-6L
Operating Temperature Range
Y -40to +85
For example: S029A (2009 year, the 1st month)
PIN CONFIGURATION (TOP VIEW)
EN 1
6 LED1
GND 2
5 LED2
LED4 3
4 LED3
SOT-23-6L
NOTE: The location of pin 1 on the S02XX is determined by
orienting the package marking as shown.
CAUTION
This integrated circuit can be damaged by ESD if you don’t
pay attention to ESD protection. SGMICRO recommends
that all integrated circuits be handled with appropriate
precautions. Failure to observe proper handling and
installation procedures can cause damage.
ESD damage can range from subtle performance
degradation to complete device failure. Precision integrated
circuits may be more susceptible to damage because very
small parametric changes could cause the device not to
meet its published specifications.
ABSOLUTE MAXIMUM RATINGS
VIN to GND……………….……...…….…………-0.3V to 6V
The Other Pins to GND………………………...-0.3V to 6V
Storage Temperature Range..…….……...-65to +150
Junction Temperature………………………………...150
Operating Temperature Range…………… -40to +85
Power Dissipation, PD @ TA = 25
SOT-23-6L ……………………………….……………..0.5W
Package Thermal Resistance
SOT-23-6L, θJA………….…………………………..250℃/W
Lead Temperature Range (Soldering 10 sec)
…………………………………..………….………….. 260
ESD Susceptibility
HBM………………………………………..……………4000V
MM……………………………………….…….…………400V
NOTE:
Stresses above those listed under Absolute Maximum
Ratings may cause permanent damage to the device. This
is a stress rating only; functional operation of the device at
these or any other conditions above those indicated in the
operational section of this specification is not implied.
Exposure to absolute maximum rating conditions for
extended periods may affect device reliability.
SG Micro Limited
www.sg-micro.com
2


Part Number SGM3134
Description White LED Driver
Maker SG Micro
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SGM3134 Datasheet PDF






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