LED驱动：降压恒流

QX5243是一款降压、恒流、高效率的高亮度LED驱动器。\r\nQX5243特别适合宽输入电压范围的应用，输入电压范围从5.5V到36V，并且QX5243对输入电压具有高的抑制比。\r\nQX5243采用内置的低导通电阻的功率开关管，简化了芯片的外围电路，只需很少的外接元件就可实现降压、恒流驱动功能，并可以通过DIM引脚实现辉度控制功能。\r\nQX5243通过一个外接电阻设定输出电流，输出驱动电流最大可达800mA，高端电流检测达到±4%的电流精度。 由于采用滞环控制方式，QX5243对负载瞬变具有非常快的响应速度，最高工作频率可达1MHz。\r\nQX5243采用ESOP8封装。 ·最大输出驱动电流：800mA\r\n·电流精度：±4%\r\n·高效率：95%\r\n·高端电流检测，恒流输出\r\n·辉度控制，最大辉度控制频率：20KHz\r\n·滞环控制：无需补偿\r\n·最高工作频率：1MHz\r\n·最高输出功率：20W\r\n·5V，2mA 片上稳压器;

SURFACE MOUNT SILICON ZENER DIODES

VOLTAGE 2.4 to 51 Volts POWER 200 mWatts FEATURES • Planar Die construction • 200mW Power Dissipation • Zener Voltages from 2.4V~51V • Ideally Suited for Automated Assembly Processes • In compliance with EU RoHS 2002/95/EC directives

SURFACE MOUNT SILICON ZENER DIODES

FEATURES • Planar Die construction • 500mW Power Dissipation • Ideally Suited for Automated Assembly Processes • In compliance with EU RoHS 2002/95/EC directives

SURFACE MOUNT SILICON ZENER DIODES

SURFACE MOUNT SILICON ZENER DIODES VOLTAGE 2.4 to 75 Volts POWER 200 mWatts FEATURES • Planar Die construction • 200mW Power Dissipation • Ideally Suited for Automated Assembly Processes • Pb free product : 99 Sn above can meet RoHS environment substance diective request

Voltage regulator diodes

DESCRIPTION Low-power voltage regulator diodes in small SOT23 plastic SMD packages. The series consists of 32 types with nominal working voltages from 3.3 to 75 V. FEATURES • Total power dissipation: max. 250 mW • Tolerance series: ±5 • Working voltage range: nom. 3.3 to 75 V • Non-repetiti

Voltage regulator diodes

Low-power voltage regulator diodes in small hermetically sealed glass SOD80C SMD packages. The series consists of 43 types with nominal working voltages from 3.0 to 75 V. FEATURES • Total power dissipation : max. 500 mW • Tolerance series:±5 • Working voltage range : nom. 3.0 to 75 V