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LN2115
Step-up DC/DC Converter —Backlight Driver
■ General Description
The LN2115 Series is a fixed frequency, constant current step-up DC/DC converter ideal for driving LEDs used in backlighting applications on cellular phones, PDAs and digital cameras etc. Output voltage of up to 28V can be derived, and from a 3.2V input four white Led’s cab be driven in series or alternatively, using a 3.0V input, a network of six LEDs may be driven. Luminance of the LED’s is controlled by changing the duty cycle of a PWM signal applied to the CE pin.
LX limit Current
1000mA
■ Applications
For White LED Drivers Mobil phones, PHS PDAs Digital still cameras
■ Package
SOT-23-6L
■ Features
Input voltage range
2.5V—6V
Output voltage range
up to 28V
Oscillation frequency
1.
LN2115 Datasheet
