LD5857 Datasheet Boost Controller

Manufacturer: Leadtrend Technology

LD5857 boost controller by Leadtrend Technology - Datasheet Preview

Datasheet Details

Part number	LD5857
Manufacturer	Leadtrend Technology
File Size	526.71 KB
Description	Boost Controller
Download	LD5857 Download (PDF)

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.

Overview

Boost Controller for LED Backlight LD5857 4/15/2014 REV: 00 General.

Key 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 28V.
Current Mode Control.
0.3V LED Feedback Current Sensing Reference.
Fixed Switching Frequency.
Cycle-by-Cycle Current Limit.
Over Temperature Protection.
High performance of Dimming Linearity.
Programmable PWM Dimming Input and Analog Dimming Output w.

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