Integrated 500V MOS Non-isolated Buck LED Driver

\n\nJW®1991D是一款集成500V高压MOS，高恒流精度、低成本的非隔离型降压LED驱动。芯片通过采样MOS电流来实现高精度的恒流控制。电感电流工作在临界连续模式，避免续流二极管反向恢复，以确保系统工作的高效率。\n\nJW®1991D直接从母线供电，无需辅助绕组或者外置芯片供电电容，可以降低系统成本。\n\n该芯片集成了多种保护功能，极大地增强了系统的安全性和可靠性，如LED短路保护和芯片过温保护功能。\n\n \n\n 1. 集成500V，低RdsonMOSFET\n2. 优秀的线性调整率和负载调整率\n3. 临界导通模式\n4. 全工作范围内高效率\n5. LED短路保护\n6. 过温保护功能\n7. SOP7 和SOT33-4 封装;

JoulWatt

杰华特

VARACTOR DIODES UHF Microwave Super-Hyperabrupt Junction

文件：90.56 Kbytes 页数：2 Pages

Microsemi

美高森美

UHF-MICROWAVE SUPER HYPERABRUPT JUNCTION VARACTOR DIODES

DESCRIPTION The KV1900 series of Super Hyperabrupt Varactor diodes combines low voltage with high ratio tuning. They feature grown junction mesa technology for the highest Q commercially available. Passivation is our tough MIL-Spec ceramic glass for lowest leakage even at temperature extremes or

文件：58.36 Kbytes 页数：1 Pages

Microsemi

美高森美

Three-Phase Brushless Motor Driver for Portable VCR Capstan Motors

Overview The LB1991V is a 3-phase brushless motor driver IC tha is optimal for driving the capstan motor in portable VCR products. Functions • 3-phase full-wave voltage drive technique (120° voltage-linear technique) • Torque ripple correction circuit (overlap correction) • Speed control tech

文件：179.91 Kbytes 页数：7 Pages

SANYO

三洋