LED背光控制器CXLE81112 CXLE81112A大功率电流模式DC升压控制器并行驱动多达4个字符串外部模拟真脉冲宽度调制调光模式DC控制四个串并联配置外部电流检测电阻器和斜率补偿电阻器

LED背光控制器CXLE81112 CXLE81112A大功率电流模式DC升压控制器并行驱动多达4个字符串外部模拟真脉冲宽度调制调光模式DC控制四个串并联配置外部电流检测电阻器和斜率补偿电阻器

产品型号：CXLE81112/A
产品类型：背光驱动
产品系列： 白灯背光驱动IC
产品状态：量产
浏览次数：63 次
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产品简介

CXLE81112/A是当前模式的DC/DC控制器，可驱动多达四个串并联配置，每个串中有多个LED串联连接。外部电流检测电阻器和斜率补偿电阻器使其适用于各种应用。脉宽调制调光输入控制占空比从0%到100%，频率高达几千赫兹。CXLE81112/CXLE81112A包括短路和开路打嗝保护，在故障条件清除后自动恢复。CXLE81112提供TQFN4X4-24软件包。CXLE81112A有TQFN4X4-28和SOP-28两种包装。
7V~27V输入电压范围
·大功率电流模式DC/DC升压控制器
并行驱动多达4个字符串
外部模拟/真脉冲宽度调制调光
电压参考值为±2%
可编程开关频率
“可编程坡度补偿
可编程电流限制
+0.2A/-0.4A门驱动器
输入欠压保护
输出短路保护
输出过压保护和LED灯条短路/开路保护的Hiccup模式保护
热关机

技术参数

输入电压范围 (VIN)7~27VV ~ 7~27VV
输出电压 (VOUT)EXTV
输出电流 (IOUT)Vcs SETA
工作频率ADJHz
转换效率93%%
封装类型TQFN4X4-24/TQFN4X4-28
Topology白灯背光驱动IC
Dimming ratio1000:1
Protection过压过流保护
FeaturesCommon Anode
Efficiency93
Pwm frequency100Hz-1KHz
Application type背光驱动
CH4
FSW(kHz)ADJ
VLED FB(V)1.23

产品详细介绍

目录

1.产品概述       2.产品特点     

3.应用范围       4.技术规格书下载（PDF文档）

5.产品封装       6.电路原理图  

7.相关产品

   产品概述 返回TOP

The CXLE81112/CXLE81112A is current mode DC/DC controller that drives up to four strings connected in parallel configuration with multiple LEDs in each string connected in series. External current sense resistor and slope compensation resistor make it flexible for various applications. A PWM dimming input controls a duty ratio from 0% to 100% with frequency up to few kilohertz. The CXLE81112/CXLE81112A includes hiccup protection from both short and open circuits, with automatic recovery after the fault condition is cleared. The CXLE81112 is available in a TQFN4X4-24 package. The CXLE81112A is available in a TQFN4X4-28 and SOP-28 package.

   产品特点 返回TOP

„ 7V~27V input voltage range 

„ High Power Current Mode DC/DC boost Controller 

„ Drives up to 4 strings in parallel 

„ External Analog/True PWM Dimming 

„ +/-2% Voltage Reference 

„ Programmable Switching Frequency 

„ Programmable Slope Compensation 

„ Programmable Current Limit 

„ +0.2A/-0.4A Gate Driver 

„ Input Under Voltage Protection 

„ Output Short Circuit Protection 

„ Hiccup Mode Protection for Output Over Voltage Protection and LED Light Bar Short/Open Protection 

„ Thermal Shutdown 

„ Available in TQFN4X4-24/TQFN4X4-28/SOP-28 Package

   应用范围 返回TOP

„ TV

   技术规格书（产品PDF) 返回TOP 

     需要详细的PDF规格书请扫一扫微信联系我们，还可以获得免费样品以及技术支持！

 QQ截图20160419174301.jpg

产品封装图 返回TOP

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电路原理图 返回TOP

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LED   Backlight Driver

Part  NO.

Vin(V)

min.

Vin(V)

max.

CH

VOUT

(max)

ISW

(A)

FSW

(kHz)

VLED

FB(V)

Note

Package

CXLE8198

2.5

5.5

1

20

1.2

1000

0.1/0.2

/ 0.3

LX,GND,FB,EN,OVP,VIN,EN Dimming 

100~200kHz,6SxP

TSOT23-6

CXLE8199

2.5

5.5

1

40

1.2

1000

0.2

LX,GND,FB,EN,OVP,VIN,EN Dimming 

100~200kHz

TSOT23-6

CXLE81100

4.2

24

6

40

2

600

1.25

30mA/CH,Dimming 100~25kHz,EN,OCP,

OVP,PWM/DC/Mixed DimmingMode

TQFN4X4-20

CXLE81101

2.7

5.5

6

40

2

600

1.25

30mA/CH,Dimming 100~25kHz,EN,OCP, OVP,PWM/DC/Mixed Dimming Mode

TQFN4X4-20

CXLE81102

2.5

20

1

20

1.2

1000

0.2

OVP,FB,DIMC,GND,LX,BP,PWM, EN,PWM

Dimming 100~200kHz,6SxP

TDFN2X2-8

CXLE81103

2.5

5.5

1

40

1.2

1000

0.2

LX,GND,FB,EN,OVP,VIN,EN Dimming 

100~200kHz

SOT23-6

CXLE81104

2.7

5.5

1

28

0.85

1000

0.2

LX,GND,FB,EN,OVP,IN

TDFN2X2-8/SOT-23-6

CXLE81105

2.7

7

1

26

0.7

600

0.2*EN

Duty

FB,COMP,GND,LX, EN,VIN,5k~100kHz EN BrightnessControl

TDFN2X2-6

CXLE81106

2.7

7

1

38

0.7

600

0.2*EN

Duty

FB,COMP,GND,LX, EN,VIN,5k~100kHz EN BrightnessControl

TDFN2X2-6

CXLE81107

5

24

6

40

2

1000

1.23

30mA/CH,PWM dimming,EN,SS,OCP,

OVP,OTP,OLP,SLP

TQFN3X3-16

CXLE81107L

3.2

24

6

40

2

1000

1.23

30mA/CH,PWM dimming,EN,SS,OCP, OVP,OTP,OLP,SLP

TQFN3X3-16

CXLE81108

5

24

6

50

2

750

1.23

30mA/CH, PWM   dimming, EN,SS, OCP,OVP,OTP,OLP

TQFN4X4-20

CXLE81109

B/C/L

4.2

24

8

48

3

1000

0.6

30mA/CH,PWM dimming,EN,SS,OCP,

OVP,OTP,OLP

TQFN4X4-24

TSSOP20(FD)

CXLE81110

7

18

1

EXT

VCS 

SET

ADJ

1.2

Programmable ILED, PWM Dimming,

Hiccup mode for OVP,SCP

SOP-16

CXLE81111

10

30

4

EXT

VCS 

SET

ADJ

0.8

20mA~150mA/CH,   PWM dimming,EN, SS,OCP,OVP,OTP, OLP,SLP

TSSOP20(FD)

CXLE81112

/A

7

27

4

EXT

VCS 

SET

ADJ

1.23

Programmable   ILED,True PWM& Analog Dimming,Hiccup mode for OVP,OLP, SLP

TQFN4X4-24

TQFN4X4-28

CXLE81113

/4

5

28

12

EXT

VCS 

SET

ADJ

0.6

60mA/CH G5997,120mA/CH G5999 Analog&

PWM Dimming,Slope comp.,OCP,UVP,OTP,

Hiccup mode for OVP,SLP

SOP28/TSSOP18(FD)/TQFN5X5-28

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