GENERAL DEscriptION
The SGM3127 is a 4-channel white LED driver with integrated low dropout current sources. High performance makes it suited for replacing the simple ballast resistors that are used in general white LED solutions. The SGM3127 is ideal for portable backlighting and keypad LED applications.
The SGM3127 integrates an internal resistor to set the LED bias current. It supports up to 30mA current per string. Compared with ballast resistors, the driver has many advantages such as lower dropout voltage, much lower bias variation with supply voltage variation and better efficiency
The SGM3127 is available in a Green SOT-23-6 package. It operates over an ambient temperature range of -40℃ to +85℃.
FEATURES
Supply Voltage Range: 2.5V to 5.5V
Support up to 4 LEDs
Low 50mV Dropout Voltage at a 30mA Load
Less than ±5% LED Current Matching
Simple LED Brightness Control
Less than 1μA Shutdown Current
Thermal Shutdown Protection
Operating Temperature Range: -40℃ to +85℃
Available in a Green SOT-23-6 Package
APPLICATIONS
Wireless Handsets
MP3, MP4, and PDAs
Mobile Phones, Digital Cameras, Camcorders
Portable Devices
LED/Display Backlight Drivers
LEDs for Camera Flash
Battery-Powered Equipment