Various protection features are built into the CXLE8194, including cycle-by-cycle input current limit protection, open LED (output over-voltage) protection and thermal shutdown protection. The leakage

   产品概述 返回TOPPQt嘉泰姆

The CXLE8194 is a versatile constant current LED driver with a high efficiency step-up converter architecture. The low-side power MOSFET is integrated in the device, significantly shrinking the overall PCB layout area and minimizing the total number of external components. Unique technology and high 1.35A current limit allow CXLE8194 to drive up to 38V output (10 LEDs in series). Alternatively, CXLE8194 can deliver 260mA total current with 3 series LEDs per string. It can also maximize the current capability while achieving high conversion efficiency. The optimized 1MHz switching frequency results in reduced conduction loss and small external component size. Digital PWM dimming interface is integrated to adjust LED current. The PWM frequency is in the range from 2kHz to 60kHz.PQt嘉泰姆

PQt嘉泰姆

Various protection features are built into the CXLE8194, including cycle-by-cycle input current limit protection, open LED (output over-voltage) protection and thermal shutdown protection. The leakage current in shutdown mode is less than 1μA.PQt嘉泰姆

PQt嘉泰姆

The CXLE8194 is available in Green TDFN-2×2-8L package. It operates over an ambient temperature range of -40℃</span> to +85℃</span>.PQt嘉泰姆

   产品特点 返回TOPPQt嘉泰姆

• Wide Output Range: Up to 10 Series LEDs
• Integrated 40V High Current Switch (1.35A Limit)
• 2.7V to 5.5V Input Voltage Range
• High Efficiency PWM Converter
• Low 200mV Feedback Voltage
• 500kΩ Pull-Low Resistor on EN/PWM Pin
• 2kHz to 60kHz PWM Dimming Frequency
• 38V Open LED Protection
• 1MHz Switching Frequency
• Integrated Soft-Start Function
• Less than 1μA Shutdown Current
• Simple, Small Solution Size
• Available in Green TDFN-2×2-8L Package
• -40℃</span> to +85℃</span> Temperature RangePQt嘉泰姆

   应用范围 返回TOPPQt嘉泰姆

LED Backlighting
Mobile Phones
Handheld Devices
Digital Photo Frames
Automotive NavigationPQt嘉泰姆

   技术规格书（产品PDF) 返回TOP PQt嘉泰姆

     需要详细的PDF规格书请扫一扫微信联系我们，还可以获得免费样品以及技术支持</span>！</span>
PQt嘉泰姆