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LD5857

Leadtrend Technology
Part Number LD5857
Manufacturer Leadtrend Technology
Description Boost Controller
Published Jun 20, 2018
Detailed Description Boost Controller for LED Backlight LD5857 4/15/2014 REV: 00 General Description The LD5857 is a wide-input asynchronou...
Datasheet PDF File LD5857 PDF File

LD5857
LD5857


Overview
Boost Controller for LED Backlight LD5857 4/15/2014 REV: 00 General Description The LD5857 is a wide-input asynchronous current mode boost controller, capable to operate in the range between 9V and 28V and to generate 12V of voltage to the GATE pin of MOSFET to reduce thermal loss.
The current mode control architecture enhances transient response and simplifies the loop compensation.
The DIM input enables the brightness control for LED Backlight or LED lighting.
The device also features internal slope compensation, input voltage under-voltage lockout, output voltage short circuit protection, cycle-by-cycle current limit and thermal shutdown protection.
Features  Wide Input Range: 9V to 2...



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