CXLE8153A电流模式和固定频率升压转换器集成N-FET串联驱动多达8个白色LED串联允许LED电流相同亮度均匀低导通电阻和反馈电压降低了功率损耗白色LED驱动器CXLE8153B CXLE8153C

CXLE8153A CXLE8153B CXLE8153C是一个电流模式和固定频率升压转换器，带有集成N-FET，可串联驱动多达8个白色LED。串联允许LED电流相同，亮度均匀。它的低导通电阻和反馈电压降低了功率损耗，实现了高效率。快速的1MHz电流模式的脉宽调制操作可用于输入和输出电容器和一个小电感，同时最小化输入电源上的纹波。OVP引脚监测输出电压，如果超过过电压阈值，则停止切换。内部软启动电路消除了启动过程中的涌入电流。CXLE8153A/B/C还集成了欠压锁定、过温保护和电流限制电路。CXLE8153/A/B/C有SOT-23-6软件包
·宽输入电压从2.7伏到6伏
·0.25V参考电压
·固定1MHz开关频率
·效率高达87%
·100Hz至100kHz的脉宽调制亮度控制频率
·开放式LED保护
·欠压闭锁保护
·过温保护
·关机时小于1毫安的静态电流
·SOT-23-6包装
·提供无铅和绿色设备（符合RoHS）

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  CXLE8153A/B/C is a current-mode and fixed frequency boost converter with an integrated N-FET to drive up to 8 white LEDs in series. The series connection allows the LED current to be identical for uniform brightness. Its low on-resistance of NFET and feedback voltage reduce power loss and achieve high efficiency. Fast 1MHz current-mode PWM operation is available for input and output capacitors and a small inductor while minimizing ripple on the input supply. The OVP pin monitors the output voltage and stops switching if exceeds the over-voltage threshold. An internal softstart circuit eliminates the inrush current during start-up.The CXLE8153A/B/C also integrates under-voltage lockout, over-temperature protection, and current-limit circuits. The CXLE8153/A/B/C is available in a SOT-23-6 packages

   产品特点 返回TOP

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· Wide Input Voltage from 2.7V to 6V 

· 0.25V Reference Voltage 

· Fixed 1MHz Switching Frequency 

· High Efficiency up to 87% 

· 100Hz to 100kHz PWM Brightness Control Frequency 

· Open-LED Protection 

· Under-Voltage Lockout Protection 

· Over-Temperature Protection 

·<1mA Quiescent Current Dduring Shutdown 

· SOT-23-6 Packages 

· Lead Free and Green Devices Available (RoHS Compliant)

   应用范围 返回TOP

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· White LED Display Backlighting 

· Cell Phone and Smart Phone 

· PDA, PMP, MP3 

· Digital Camera

   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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Lighting and Display Product > White LED Driver
Part_No	Topology	Archi tecture	Input  Voltage (V)		Adj. Output  Voltage V	No.  of  LEDs	LED Current  (Max) (A)	Switch Current Limit (A)	Current Sense Voltage (typ)(V)	Switching Frequency (kHz)	Dimming Control	Package
			min	max	max
CXLE8153	Boost	CM	2.7	6	32	8	0.03	0.9	0.25	1000	Analog	SOT23-6
CXLE8154	Boost	VM	2.5	6	19	4	0.03	0.4	0.25	1000	Analog PWM	SOT23-6
CXLE8155	Boost	CM	2.7	21	30	8	0.6	3.5	0.5	1200	Analog	DFN3x3-10
CXLE8156	Charge  Pump	-	2.8	4.5	-	4	0.03	-	-	1000	Analog PWM  Digital	QFN4x4-16
CXLE8157	Charge  Pump	-	2.8	4.5	-	6	0.03	-	-	1000	Analog PWM Digital	QFN4x4-16
CXLE8158	Charge  Pump	-	2.8	4.5	-	4	0.03	-	-	1000	Analog PWM Digital	QFN3x3-16
CXLE8159	Boost	CM	2.5	6	24	6	0.03	1.2	0.1	1000	Analog PWM	SOT23-6
CXLE8160	Boost	CM	2.5	6	39	10	0.03	0.9	0.3	1000	Analog PWM	SOT23-6
CXLE8161	Boost	CM	2.5	6	24	6	0.03	1.2	0.2	1000	Analog PWM	SOT23-6
CXLE8162	Boost	CM	2.5	6	40	10	0.03	1.5	0.2	600	Analog PWM	TDFN2x2-6
CXLE8163	Boost	CM	2.5	6	24	6	0.03	2	0.2	1500	Analog PWM	SOT23-6
CXLE8164	Buck	CM	3	5.5	-							SOT23-5
CXLE8165	Boost	CM	6	24	65	17	0.18per string	3.3	0.5	200   ~ 900	External PWM Dimming/I2C	TDFN5x5-16
CXLE8166	Boost	CM	2.7	6	40	10	0.03	1.5	0.2	600	Analog  PWM	TDFN2x2-6