首页 > 产品中心 > LED驱动芯片 > 显示屏驱动 > CXLC8992升压转换器正电荷泵和负电荷泵内置延时的逻辑控制高压开关升压型DC/DC变换器为面板电源驱动芯片提供稳压电源变换器是工作频率为1.2MHz的高性能电流模式稳压器提供快速的瞬态响应和高效率电荷泵调节LCD面板的TFT栅极开和关电源

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CXLC8992升压转换器正电荷泵和负电荷泵内置延时的逻辑控制高压开关升压型DC/DC变换器为面板电源驱动芯片提供稳压电源变换器是工作频率为1.2MHz的高性能电流模式稳压器提供快速的瞬态响应和高效率电荷泵调节LCD面板的TFT栅极开和关电源

产品型号：	CXLC8992
产品类型：	显示屏驱动
产品系列：	液晶显示驱动
产品状态：	量产
浏览次数：	77 次

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产品简介

CXLC8992包括一个升压转换器、一个正电荷泵和一个负电荷泵。还包括一个内置延时的逻辑控制高压开关。升压型DC/DC变换器为面板电源驱动芯片提供稳压电源。该变换器是一种工作频率为1.2MHz的高性能电流模式稳压器。它还提供快速的瞬态响应和高效率。CXLC8992中的电荷泵调节LCD面板的TFT栅极开和关电源。

技术参数

输入电压范围 (VIN)	V ~ 2.5~5.5VV
输出电压 (VOUT)	ADJV
输出电流 (IOUT)	4.5A
工作频率	1200Hz
转换效率	95%%
封装类型	TQFN5X5-20
Dimming method	PSM/PWM
Led count	36×4
Iq	1UA
Interface	14+1
Power	—
Pf value	.9
Topology	液晶显示驱动
Application type	显示屏驱动
Topology type	BUCK
Protection	OVP/OCP/短路保护
Features	Integrated PMIC for LCD
VLX(V)	18
OPAS/R(V/μs)	--
OPAISCmA	--

产品详细介绍

The CXLC8992 includes a step-up converter, a positive charge pump, and a negative charge pump. Also included is a logic-controlled high-voltage switch with built-in delay. The step-up DC/DC converter provides the regulated power supply for the panel source driver IC. The converter is a high performance current-mode regulator with operating frequency at 1.2MHz. It also provides fast transient response and high efficiency. The charge pumps in CXLC8992 regulate TFT gate-on and gate-off power supplies for LCD panel. CXLC8992 is available in TQFN5X5-20 package.

产品特点返回TOP

„ 2.5V to 5.5V Input Supply Range

„ 1.2MHz Current-Mode Step-Up Converter

„ Built-In 18V, 0.15Ω n-Channel MOSFET

„ Charge Pumps for VGON and VGOFF

„ Thermal Overload Protection

„ TQFN5X5-20 Package

应用范围返回TOP

„ LCD Monitor Panels

„ Notebook Computer Displays

„ LCD TVs

技术规格书（产品PDF) 返回TOP

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Integrated PMIC for LCD
Part NO.	Vin(V) min.	Vin(V) max.	FSW (kHz)	ILX (A)	VLX (V)	OPAS/ R(V/μs	OPAI SCmA	Note	Package
CXLC8984	2.5	5.5	1200	3	18	40	200	Async-Boost,VGH/VGL Charge-Pump, VCOM,GPM, Voltage Detector	TQFN4X4-24
CXLC8985	2.5	5.5	1200	1.8	20	12	150	Async-Boost, VCOM,VGH/VGL Charge-Pump, 1-CH WLED Driver with EN,LXB=20V/1.2A	TQFN4X4-24
CXLC8986	2.5	5.5	1200	2	20	12	200	Async-Boost,VGL Regulator,LDO,GPM,OPA, Voltage Detector,6-CH WLED Driver,30mA/CH	TQFN5X5-40
CXLC8987	2.5	5.5	600	2	20	12	200	Async-Boost,VGL Regulator,LDO,GPM,OPA, Voltage Detector,6-CH WLED Driver,30mA/CH	TQFN5X5-40
CXLC8988	2.6	5.5	600/ 1200	3	20	20	200	Async-Boost,VGH Regulator,OPA*3,Buck-Boost VGL Temp. Compensation,7-CH-33V~+33V Level-Shifter	TQFN6X6-48
CXLC8989	2.6	5.5	600/ 1200	--	--	20	200	Async-Boost,VGH Regulator,OPA*3,Buck-Boost VGL Temp. Compensation,7-CH-33V~+33V Level-Shifter	QFN6X6-48
CXLC8990	2.6	5.5	600/ 1200	3	20	20	200	Async-Boost,VGH Regulator,OPA*3,Buck -Boost VGL with Temp. Compensation	QFN5X5-32
CXLC8991	8	14	750	5	24	30	200	Async-Boost,Async-Buck, OPA,VGON and VGOFF Regulator,GPM,VGH Temp. Compensation,I2C	TQFN6X6-40
CXLC8992	2.5	5.5	1200	4.5	18	--	--	Async-Boost, VGHM,VGH/VGOFF Charge-Pump	TQFN5X5-20
CXLC8993	2.5	5.5	1200	3	18	40	200	Async-Boost,VGH/VGL Charge-Pump, VCOM, GPM,Voltage Detector	TQFN4X4-24
CXLC8994	2.5	5.5	1200	1.8	20	12	150	Async-Boost,VGH/VGL Charge-ump,VCOM, CXLC8994A With EN,CXLC8994S With XAO	TQFN3X3-16
CXLC8994 A/S	2.5	5.5	1200	1.8	20	12	150	Async-Boost,VGH/VGL Charge-Pump,VCOM, CXLC8994A With EN,CXLC8994S With XAO	TQFN3X3-16
CXLC8995 /A	2.5	5.5	640/ 1200	2	20	12	150	Async-Boost, VGH Charge-Pump,VCOM, GPM, Voltage Detector,LDO	TQFN4X4-24
CXLC8996A	2.5	5.5	640/ 1200	2	20	12	150	Async-Boost,VGH Charge-Pump,VCOM,LDO,GPM, Voltage Detector,4-CH WLED Driver,50mA/CH	TQFN5X5-40 TQFN3.8X6.2
CXLC8997	2.5	5.5	640/ 1200	2	20	12	150	Async-Boost,VGH Charge-Pump,VCOM, GPM, Voltage Detector	TQFN4X4-24
CXLC8998	2.5	5.5	1200	1.8	20	12	150	Async-Boost,VGH Charge-Pump,VGL Charge-Pump, Voltage Detector,1-CH WLEDdriver,240mA/CH,HVInput	TQFN4X4-24
CXLC8999 /B	8	14	500/ 750	2.3	19	--	--	Async-Boost,Async-Buck,VGH/VGL,Charge-Pump	TSSOP-28(FD)
CXLC89100 /A	8	14	500/ 750	3	20	45	200	Async-Boost,Async-Buck, VGH/VGL Charge-Pump, GPM,VCOM,Voltage Detector,HV LDO	TQFN7X7-48
CXLC89101	9.5	14	500~ 2000	3.5	20	--	--	Async-Boost,Async-Buck,VGON and VGOFF Regulator	TQFN5X5-28
CXLC89102	8	14	750/ 1000	5	24	--	--	Async-Boost,Sync-Buck*2,Async-Buck,VGON and VGOFF Regulator,GPM,VGH Temp.Compensation,I2C	TQFN6X6-40