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XRP6840AILB-F PDF预览

XRP6840AILB-F

更新时间： 2024-11-25 07:56:03
品牌 Logo 应用领域
艾科嘉 - EXAR 显示驱动器驱动程序和接口接口集成电路闪光灯
页数 文件大小 规格书
17页 659K
描述
4.3A Supercapacitor Flash LED Driver with I2C

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XRP6840AILB-F 技术参数

是否Rohs认证： 符合生命周期：Obsolete
零件包装代码：QFN包装说明：HVQCCN, LCC20,.16SQ,20
针数：20Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.82数据输入模式：SERIAL
接口集成电路类型：LED DISPLAY DRIVERJESD-30 代码：S-XQCC-N20
JESD-609代码：e3长度：4 mm
复用显示功能：NO功能数量：1
区段数：3端子数量：20
最高工作温度：125 °C最低工作温度：-40 °C
封装主体材料：UNSPECIFIED封装代码：HVQCCN
封装等效代码：LCC20,.16SQ,20封装形状：SQUARE
封装形式：CHIP CARRIER电源：3/5 V
认证状态：Not Qualified座面最大高度：0.8 mm
子类别：Display Drivers最大供电电压：5.5 V
最小供电电压：2.7 V标称供电电压：3.3 V
表面贴装：YES温度等级：AUTOMOTIVE
端子面层：Matte Tin (Sn)端子形式：NO LEAD
端子节距：0.5 mm端子位置：QUAD
宽度：4 mm最小 fmax：0.4 MHz
Base Number Matches：1

XRP6840AILB-F 数据手册

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XRP6840  
4.3A Supercapacitor Flash LED Driver with I2C  
December 2009  
Rev. 1.0.0  
GENERAL DESCRIPTION  
APPLICATIONS  
The XRP6840 is a controlled-current dual-cell  
supercapacitor charger and high power LED  
driver. Operating from a standard lithium-ion  
battery, the XRP6840 provides up to 4.3A of  
programmable Flash LED current and up to  
• High Power Torch/Strobe/Flash LED  
• High Resolution Cameras  
• Generic High Power Lighting  
• High Power White LED Backlighting  
600mA  
and  
5.6V  
of  
programmable  
supercapacitor charging current and voltage.  
FEATURES  
Architectured around a 2.4MHz tri-mode 1x,  
1.5x and 2x charge pump, the XRP6840  
charges the stacked supercapacitor to the  
programmed output voltage with no more  
than 600mA drawn from the battery. While  
charging, an internal active balance circuitry  
insures matching of the stacked capacitors’  
voltages.  
A standard 2-line I2C serial interface allows  
the dynamic programming of LED currents in  
torch and flash modes, flash timeout, channel  
enable, gain control, capacitor charge voltage,  
and enable. The XRP6840 comes in a 2 and 3  
• Programmable 4.3A Flash LED Driver  
− Torch and Flash Modes  
− 2 and 3 Channels Versions  
• Programmable Supercapacitor Charger  
− 600mA Adjustable Charging Current  
− Programmable Supercapacitor Voltage  
− In-rush Current Control  
− Active Voltage Balance Control  
• Tri-mode Charge Pump Architecture  
− 1x, 1.5x, 2x Operation Modes  
channel  
version  
supporting  
respectively  
− 2.4MHz Switching Frequency  
• I2C Serial Interface  
440mA/2.15A per channel and 300mA/1.45A  
in torch/flash modes.  
The flexibility designed into the XRP6840 can  
also allow it to reverse the power flow back to  
the input to prevent unintended system resets  
as the battery voltage drops.  
• Thermal, Over Current and Output  
Short Protection  
• LED Short Detection  
• RoHS Compliant “Green”/Halogen Free  
The XRP6840 is available in a lead-free,  
“green”/halogen free 20-pin TQFN package.  
20-pin 4mmx4mm TQFN package  
TYPICAL APPLICATION DIAGRAM  
Fig. 1: XRP6840 – 3 Channels Application Diagram  
Exar Corporation  
www.exar.com  
48720 Kato Road, Fremont CA 94538, USA  
Tel. +1 510 668-7000 – Fax. +1 510 668-7001  
1234567...17

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