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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数据手册

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LD5850GS 数据手册

LD5850

Electrical Characteristics

(V_CC=12V, T_A=25C, unless otherwise noted.)

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNITS

Input Power (VCC)

Turn On Level

UVLO(on)

UVLO(off)

8.7

Turn Off Level

Shutdown Current

Standby Current

DIM=Low, over 200ms

DIM=Low

A

DIM=High,

Operating Current

Switching at no load

Boost Converter

Switching frequency

Boost Maximum duty cycle

162

180

198

KHz

Switching frequency=180KHz

Source current, VIN=12V

Sink current, VIN=12V

V_CC=24V

1.2

1.3

DRV gate drive

Output High Clamp Level

DRV pin Rising Time

DRV pin Falling Time

COMP clamp voltage

Feedback (FB)

DRV pin load=1nF

3.6

3.8

4.0

Reference Voltage

0.3

Tolerance of Reference Voltage

PWM Dimming (DIM)

-3

Enable

Disable

DIM Voltage threshold

0.8

Resistance from DIM pin to GND

PWM dimming frequency

Dimming Duty-Cycle

600

200

K

KHz

0.1

100

Shutdown Recover Delay Time

(Note 1)

(T_DOWN

)

Current Sensing (CS)

Current Sense Input Threshold

Voltage

0.45

0.5

0.55

LEB time

275

Leadtrend Technology Corporation www.leadtrend.com.tw

LD5850-DS-00 November 2012

1 2 3 456 7 8...11

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