CXLC8953高性能的升压转换器两个电荷泵控制器和用于TFT-LCD应用的大电流运算放大器升压调节器是电流模式固定频率的PWM开关调节器1.5MHz的开关频率允许使用低轮廓电感和陶瓷电容器最小化LCD面板设计的厚度

CXLC8953集成了一个高性能的升压转换器、两个电荷泵控制器和一个用于TFT-LCD应用的大电流运算放大器。主要的升压调节器是一个电流模式，固定频率的PWM开关调节器。1.5MHz的开关频率允许使用低轮廓电感和陶瓷电容器，以最小化LCD面板设计的厚度。电荷泵控制器提供可调节的TFT-LCD VGH和VGL电源的栅极驱动器。放大器是VCOM应用的理想选择，具有100mA输出短路电流驱动、10MHz带宽，和13V/ms转换率。所有的输入和输出都是轨对轨的

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

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The CXLC8953 integrates with a high-performance stepup converter, two charge pump controllers and one high current operational amplifiers for TFT-LCD applications. The main step-up regulator is a current-mode, fixed-frequency PWM switching regulator. The 1.5MHz switching frequency allows the usage of low-profile inductors and ceramic capacitors to minimize the thickness of LCD panel designs.The charge pump controllers provide regulated the gate-driver of TFT-LCD VGH and VGL supplies.The amplifiers are ideal for VCOM applications, with 100mA output short circuit current drive, 10MHz bandwidth, and 13V/ms slew rate. All inputs and outputs are rail-to-rail. The CXLC8953 is available in a tiny 3mm x 3mm 20-pin QFN package (TQFN3x3-20).

   产品特点 返回TOP

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· Input Voltage Range from 2.7V to 5.5V 

· Positive & Negative Charge Pump for VGH & VGL 

· High Performance Operation Amplifier 

- +100mA Output Short Circuit Current 

- 13V/ms Slew Rate 

- 10MHz, -3dB Bandwidth 

· Control Output for External P-MOSFET to Support Completely Disconnecting the Battery 

· Adjustable Power Sequence byExternal Capacitor 

· Internal Soft-start 

· Cycle By Cycle Current Limit 

· Multiple Overload Protection 

· Over Temperature Protection 

· Available in TQFN3x3-20 Package 

· HalogenandLeadFreeAvailable (RoHSCompliant)

   应用范围 返回TOP

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· Panel

   技术规格书（产品PDF) 返回TOP 

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     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！

 

产品封装图 返回TOP

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电路原理图 返回TOP

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PMIC > LCD Bias Converter

Part_No

Package

Topology

Buffer for  Vcom

Switch  Current  Limit (A)

Vin (V)

Fmax Khz

SYNC ASYNC

PFM/PSM

Vref (V)

R-Top milohm

Iq(No  load) (uA)

En pin

POK

Charge Pump  Output

min

max

CXLC8953

TQFN3 x3-20

Boos tCharge pump

Yes

2

2.7

5.5

1500

ASYNC

PSM/PWM

1.25

500

300

Yes

No

Two set for VGH, VGL

CXLC8954

TQFN3 x3-20

Boos tCharge pump

2

2.9

5.5

1000

ASYNC

PSM/PWM

1.25

Yes

No

Two set for VGH,VGL

CXLC8955

TQFN5 x5-32

Boost Charge pump

Yes

1.8

3

5.5

1000

ASYNC

PSM/PWM

1.25

250

2000

Yes

No

Two set for VGH,VGL

CXLC8956

WLCSP1.92 x1.28-15

Boost  Charge pum

0.6

2.5

5.5

1800

SYNC

PSM/PWM

540

Yes

No

Two set for VGH,VGL