Product Overview

The CXLE86234 high-power synchronous buck constant current driver is a flagship power management chip for industrial and automotive lighting systems, supporting a wide input voltage range of 5-45V and integrating 60mΩ Ultra low impedance synchronous rectification MOSFET, achieving 95% conversion efficiency at a switching frequency of 200KHz, can stably output 4A current to drive 10 string LED arrays, with a maximum output power of 30W. Adopting TO252-5L reinforced heat dissipation package, combined with dynamic thermal balance technology and Class 3K ESD protection, it ensures to maintain± in extreme environments from -40 ℃ to+125 ℃; 4% current accuracy, perfectly suitable for harsh scenarios such as high brightness headlights and industrial searchlights.2eu嘉泰姆

This chip achieves technological breakthroughs through fully integrated design: the built-in digital loop compensation module reduces peripheral components by 80% and supports 0-100% full duty cycle stepless dimming; The 0.23V precision sampling benchmark is combined with multi-level current limiting protection to build a triple hardware level protection system for overcurrent/overheating/short circuit. Its innovative valley current control technology achieves an ultra-low ripple output of<30mVpp, combined with a dynamic response speed of 5&ms, making it the ultimate power solution for high demand applications such as outdoor advertising screens and medical surgical lights.2eu嘉泰姆

   Product Features;2eu嘉泰姆

Technical highlights optimization presentation:2eu嘉泰姆
■ Industrial grade power density4A continuous current output+30W full load power capability2eu嘉泰姆
■ Full scene dimming compatibility0-100% duty cycle supports deep dimming/off2eu嘉泰姆
■ Military grade thermal managementTO252-5L package supports 40W heat dissipation power2eu嘉泰姆
■ Precision current control0.23V sampling reference± 4% full temperature range accuracy2eu嘉泰姆
■ Efficient architectureSynchronous rectification technology achieves 95% peak efficiency2eu嘉泰姆
■ Super anti-interference design200KHz fixed frequency+spread spectrum modulation technology2eu嘉泰姆
■ Minimally integrated systemDigital compensation circuit reduces PCB area by 50%2eu嘉泰姆
■ Five fold safety protectionOCP/OVP/TSD/SCP/UVLO Full Protection2eu嘉泰姆

   Application scope;2eu嘉泰姆

Target application extension:2eu嘉泰姆
► New energy vehicle lightingElectric vehicle matrix headlights/through type taillights drive2eu嘉泰姆
► Industrial special lightingExplosion proof mining lamp/port crane lighting system2eu嘉泰姆
► medical equipmentSurgical shadowless lamp/endoscope cold light source drive2eu嘉泰姆
► Outdoor displayPower supply for LED screens/traffic information screens in sports venues2eu嘉泰姆
► Smart BuildingSmart Street Light/Building Contour Light Control System2eu嘉泰姆
► Agricultural technologyGreenhouse multispectral fill light driver2eu嘉泰姆
► consumer electronics: Gaming RGB lighting effect/ultra-thin TV backlight driver2eu嘉泰姆
► emergency systemFire evacuation indicator lights/disaster rescue lighting equipment2eu嘉泰姆

   Technical Specifications (Product PDF);2eu嘉泰姆

      For detailed PDF specifications, please scan WeChat to contact us. You can also receive free samples and technical support！2eu嘉泰姆

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   Product packaging diagram;2eu嘉泰姆

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   Circuit schematic diagram;2eu嘉泰姆

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Bill of Materials2eu嘉泰姆
Typical performance curve2eu嘉泰姆
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        Application Information2eu嘉泰姆
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          PCB Layout Guide2eu嘉泰姆

1. Power lines such as VIN, GND, SW, VOUT, etc., thick, short, and straight;2eu嘉泰姆
2. CS wiring should be kept away from switch signals such as inductors, and it is recommended to use a ground wire to surround it;2eu嘉泰姆
3. Input the positive electrode of the electrolytic capacitor close to the VIN pin of the chip, and input the negative electrode of the electrolytic capacitor close to the GND pin of the chip.2eu嘉泰姆

   Selection Guide for Related Chips;2eu嘉泰姆