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LN2103

natlinear
Part Number LN2103
Manufacturer natlinear
Description 2A / 40V Step-Down LED Driver
Published Dec 4, 2018
Detailed Description 150KHz, 2A / 40V Step-Down LED Driver LN2103 ■ General Description LN2103 is a step down LED driver that is designed t...
Datasheet PDF File LN2103 PDF File

LN2103
LN2103

Overview
150KHz, 2A / 40V Step-Down LED Driver LN2103 ■ General Description LN2103 is a step down LED driver that is designed to meet least 2A continuous output current for high power LED application, and utilizes PWM control scheme that switches with 150KHz fixed frequency.
The input voltage range of LN2103 is from 4.
2V to 40V.
It is suitable for series-parallel 1W, 3W, or 5W high power LED application due to the high operation voltage and output capability.
At 24V input voltage, this device can drive up to 30pcs 1W LED(6S-5P) with constant 350mA LED current.
The PWM control circuit is able to very the duty ratio linearly from 0 up to 100%.
This device also contains an error amplifier circuit as well as a soft-start circuit that prevents overshoot at startup.
An enable function, an over current protect function and a short circuit protect function are built inside, and when OCP or SCP happens, the operation frequency will be reduced from 150KHz to 30KHz.
Also, an internal compensation bloc...


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