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LN2117

natlinear
Part Number LN2117
Manufacturer natlinear
Description Step-up DC/DC Converter - Backlight Driver
Published Dec 4, 2018
Detailed Description Step-up DC/DC Converter —Backlight Driver LN2117 ■ General Description The LN2117 Series is a fixed frequency, consta...
Datasheet PDF File LN2117 PDF File

LN2117
LN2117

Overview
Step-up DC/DC Converter —Backlight Driver LN2117 ■ General Description The LN2117 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 20V 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.
■ Features  Input voltage range 2.
5V—6V  Output voltage range up to 20V  Oscillation frequency 1MHz±20%  Efficiency 88%(When driving 3 white LEDs in series VIN=3.
6V ILED=20mA)  Control PWM control  Stand-by Current ISTB=1.
0uA(MAX)  Load capacitor 0.
22uF,ceramic  LX limit Current 300mA ■ Ordering Information LN2117 ①②③④⑤⑥ Item Symbol ①B ②③④ ⑤ ⑥ 010-149 M R L ...


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