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MAX25511

更新时间： 2024-11-10 14:57:31
品牌 Logo 应用领域
亚德诺 - ADI 升压转换器驱动驱动器
页数 文件大小 规格书
33页 681K
描述
集成升压转换器的4通道、低压、120mA LED背光驱动器

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MAX25511 数据手册

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Click here to ask an associate for production status of specific part numbers.  
4-Channel, Low-Voltage, 120mA LED Backlight  
Drivers with Integrated Boost Converter  
MAX25510/MAX25511  
General Description  
Benefits and Features  
The MAX25510/MAX25511 are 4-channel, white-LED  
backlight drivers with an integrated current-mode boost  
converter that operate over a switching frequency range  
of 400kHz to 2.2MHz and incorporate spread spectrum.  
Phase-shifting of the output channels is included as an op-  
tion to further reduce EMI.  
● Operate down to 3V on Battery Input after Start-Up  
• Wide Boost Duty Cycle to Support Low Input  
Voltage  
● Boost or SEPIC Current-Mode DC-DC Controller  
• 400kHz to 2.2MHz Operating Frequency Range  
• Spread Spectrum Available  
The devices provide up to 120mA per channel and include  
a control output for an external nMOS series switch.  
These devices are capable of operating down to 3V after  
start-up.  
• Can Be Synchronized to an External Clock  
● LED Current Sinks  
• Up to 120mA Output Current per String  
• Low OUT_ Regulation Voltage for Best Efficiency  
• Optional Phase-Shifting of Outputs  
The MAX25510 has a boost current limit of 3A (min), while  
the MAX25511 implements a higher minimum current limit  
of 4.5A for increased output power.  
● 16667:1 Dimming Ratio at 200Hz  
● NTC Input for LED Current Foldback  
● Analog Dimming Capable  
● Built-In Automatic Fading Functionality  
● FLTB Output Provides Diagnostic Information  
• Shorted or Open LEDs  
The MAX25510/MAX25511 are available in a compact  
TQFN package and operate over the temperature range  
-40°C to +125°C.  
• Thermal Shutdown  
• Output Undervoltage  
Applications  
● Automotive Instrument Clusters  
● Automotive Central Information Displays  
● Automotive Head-Up Displays  
● Compact, 4mm x 4mm TQFN Package  
● AEC-Q100 Grade 1  
19-101184; Rev 1; 6/22  
Ordering Information appears at end of data sheet.  
© 2023 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners.  
One Analog Way, Wilmington, MA 01887 U.S.A. | Tel: 781.329.4700 | © 2023 Analog Devices, Inc. All rights reserved.  
 
 
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