Datasheet > LD5850GS

LD5850GS

更新时间： 2022-02-26 12:44:13

品牌	Logo	应用领域
通嘉科技 - LEADTREND		/
页数	文件大小	规格书
11页	398K
描述
Boost Controller for LED Backlight

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LD5850GS 数据手册

LD5850

11/30/2012

Boost Controller for LED Backlight

REV: 00

General Description

Features

The LD5850 is a wide-input asynchronous current mode

boost controller, capable to operate in the range between

9V and 28V and to generate 14V 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 allows

the brightness control for LED Backlight or LED lighting.



Wide Input Range: 9V to 28V

Current Mode Control

0.3V LED Feedback Current Sensing Reference

Fixed Switching Frequency

PWM Dimming Input

Internal Slope Compensation

Cycle-by-Cycle Current Limit

Over Temperature Protection

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.

Applications



LED TV Backlight

LED Monitor Backlight

LED lighting

Typical Application

V_IN

V_OUT

R_A

R_B

R_CS

VCC

VCC DRV

DIM

LD5850

R_FB

OVP COMP GND

C_OVP

Fig. 1 Application circuit

Leadtrend Technology Corporation www.leadtrend.com.tw

LD5850-DS-00 November 2012

12 3 4 5 6 7...11

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