CXLE8163白光LED的1.5MHz升压转换器电流模式带集成N-FET驱动白光LED1.5MHz开关固定频率OVP电压超过过电压阈值则停止IC的切换

CXLE8163是一个电流模式和固定的频率升压转换器，带有一个集成的N-FET来驱动白光led。串联允许LED电流相同，亮度均匀。它的低导通电阻和低反馈电压降低了功率损耗，实现了高效率。快速开关频率（典型为1.5MHz）允许使用小尺寸电感以及输入和输出电容器。过电压保护功能通过OVP引脚监测输出电压，如果OVP电压超过过电压阈值，则停止IC的切换。内部软启动电路消除启动过程中的浪涌电流。CXLE8163还集成了欠压锁定、过热保护和电流限制电路，以在异常情况下保护IC

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 CXLE8163 is a current-mode and fixed frequency boost converter with an integrated N-FET to drive white LEDs. The series connection allows the LED current to be identical for uniform brightness. Its low on-resistance of NFET and low feedback voltage reduce power loss and achieve high efficiency. Fast switching frequency(1.5MHz typical) allows using small-size inductor and both of input and output capacitors. An over voltage protection function, which monitors the output voltage via OVP pin, stops switching of the IC if the OVP voltage exceeds the over voltage threshold. An internal soft-start circuit eliminates the inrush current during start-up. The CXLE8163 also integrates under-voltage lockout, overtemperature protection, and current limit circuits to protect the IC in abnormal conditions. The CXLE8163 is available in a TSOT-23-6A and TDFN2x2-8 package.

   产品特点 返回TOP

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· Wide Input Voltage from 2.7V to 6V 

· Fixed 1.5MHz Switching Frequency 

· Reference Voltage : 0.2V 

· PWM Brightness Control with Wide Frequency Range of 100Hz to 100kHz 

· Build-In Power MOSFET : 0.2W 

· Open-LED Protection 

· Under-Voltage Lockout Protection 

· Over-Temperature Protection 

·<1mA Quiescent Current during Shutdown 

· TSOT-23-6A and TDFN2x2-8 Package 

· Halogen and Lead Free 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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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