Product Overview

CXLE86231 high voltage step-down constant current driver is an industrial-grade high-reliability LED driver chip developed for precision lighting systems in complex power supply environments. Its breakthrough supports an ultra-wide input voltage range of 8-60V, integrates an efficient synchronous rectification architecture, and achieves 95% peak conversion efficiency at a fixed frequency of 220kHz, it can drive 12 strings of high-power LED and output stable power up to 12W. The chip adopts a temperature level 1 certified SOP8-EP package, built-in Class3A ESD protection and intelligent thermal management system, ensure that the current accuracy of ± 3% is maintained in the extreme environment of-40℃ to + 125℃.tDs嘉泰姆

The core advantage of this device lies in its system-level innovative design: Integrated Digital compensation module reduces 70% peripheral components and supports 0-100% full duty cycle analog brightness adjustment; 0.21V precision current sampling combined with multi-level current limiting protection, realize safe operation under 1.5A continuous current. Its unique dynamic differential pressure control technology (minimum 0.3V differential pressure) and <50mVpp ultra-low grain PROTONIC, especially suitable for high-demand scenarios such as vehicle-mounted HUD backlight and industrial equipment status indicator light, significantly improve system energy efficiency ratio and space utilization.tDs嘉泰姆

   Product FeaturestDs嘉泰姆

// Input voltage range: 8V to 60VOptimized presentation of technical highlights:tDs嘉泰姆
■Ultra high pressure compatibility: 60V input meets industrial/vehicle-mounted stringent power supply requirementstDs嘉泰姆
■Intelligent constant current control: 0.21V sampling reference ± 3% full temperature accuracytDs嘉泰姆
■Military-grade protection: Class3A ESD 125 ℃ operating temperature certificationtDs嘉泰姆
■Full Duty cycle dimming: supports 0-100% stepless brightness adjustmenttDs嘉泰姆
■High-Performance Architecture: synchronous rectification achieves 95% conversion efficiencytDs嘉泰姆
■System minimalist design: Built-in equalizing circuit saves 30% PCB spacetDs嘉泰姆
■Multiple security barriers: over-current/over-temperature/short circuit triple protection mechanismtDs嘉泰姆
■Multi-scenario adaptation: single chip Driver 1-12 String LED arraytDs嘉泰姆

   Application ScopetDs嘉泰姆

Target application extension:tDs嘉泰姆
-Vehicle-mounted electronics: ADAS system indicator light/smart cockpit ambience lighttDs嘉泰姆
-Industrial control: Device status display light/explosion proof luminaire systemtDs嘉泰姆
-Commercial Display: 4K monitor Mini LED backlight drivertDs嘉泰姆
-Smart city: smart street lamp/traffic light controltDs嘉泰姆
-Special lighting: mine work light/Marine Navigation LightingtDs嘉泰姆
-Consumer electronics: studio keeping open light/high-end smart lampstDs嘉泰姆
-Agricultural Science and Technology: Plant Factory multispectral fill light systemtDs嘉泰姆

   Technical Specification (product PDF)Return to TOP tDs嘉泰姆

For detailed PDF specifications, please scan WeChat and contact us. You can also get free samples and technical support.!tDs嘉泰姆

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   Product packaging diagramReturn to TOPtDs嘉泰姆

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   Circuit Schematic diagramtDs嘉泰姆

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Bill of MaterialstDs嘉泰姆

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DEMO physical picturetDs嘉泰姆
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PCB layouttDs嘉泰姆
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Typical performance curvetDs嘉泰姆
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Typical characteristicstDs嘉泰姆
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Application InformationtDs嘉泰姆
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PCB layout guidetDs嘉泰姆

1. VIN, GND, SW, VOUT and other power lines, thick, short, straight;tDs嘉泰姆
2. CS routing is far away from switching signals such as inductance and Schottky. It is recommended to use ground wire to surround it;tDs嘉泰姆
3. The input ceramic capacitor is close to the chip VIN and GND pins, the input electrolytic capacitor positive electrode is close to the chip VIN pin, and the negative electrode is close to XiaotDs嘉泰姆
Anode, the anode of Schottky is close to the SW pin of the chip to shorten the switching current loop;tDs嘉泰姆
4. The output capacitor is close to the anode of inductance and Schottky, and the inductor is close to the SW pin of the chip to shorten the high current loop.tDs嘉泰姆

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