MP4688DN,80V Input, 1A High Power LED DriverDescription: The MP4688 is a high voltage input step-down switching regulator to deliver a constant current of up to 1A to high power LEDs. It integrates a high-side high voltage power MOSFET with a current limit of 3.2A (typical value). The wide 4.5V to 80V input range accommodates a variety of step-down applications, making it ideal for automotive, industry and general lighting applications. Hysteresis current mode cool is applied for very fast response, which makes the 20kHz dimming frequency sible. MPS’s proprietary feedback cool scheme minimizes the number of external components while delivering a LED current with typical ±5% accuracy. The switching frequency is up to 2MHz, thus allowing for small component size. The thermal shut down, short circuit protection, and optional output voltage limitation provide reliable, fault tolerant operations. A 170µA quiescent current allows its use in battery-powered applications. The MP4688 is ailable in SOIC8 with exed pad packages.FEATURES
• Wide 4.5V to 80V Operating Input Range • No Output Capacitor Required • ±5% LED Current Accuracy • Hysteretic Cool: No Compensation • Up to 2MHz Switching Frequency • Up to 20kHz Dimming Frequency • Dedicated PWM Dimming Cool Input • Short circuit protection with integrated high side MOSFET • Optional Output Voltage Limitation • Thermal shut down • 200mV reference voltage for high efficiency • Up to 95% Efficiency • 170μA Quiescent Current • ailable in SOIC8 with Exed Pad PackagesAPPLICATIONSHigh Power LED Driver Automotive, Industry and General Lighting Constant Current Source方案服務(wù):可配合協(xié)助做方案,提供技術(shù)支持 品質(zhì)承諾:全新年份,料,品質(zhì)保障 技術(shù)支持:本公司是一家專業(yè)從事方案服務(wù)和元器件銷售的綜合性公司,可配合客戶做方案,提供技術(shù)支持,給您添加了技術(shù)性的保障,解決了您的后顧之憂! 可發(fā)郵件或撥打我們的熱線電話進行咨詢: TEL:0755-61352658 0755-61352659 E-mail:sales.yi@china-ic.com.cn