800mA Fixed Frequency White LED Driver

DESCRIPTION The MP1488 is a step-up converter designed for driving up to 27 WLEDs (9 strings of 3 WLEDs each) from a 5V system rail. The MP1488 uses a current mode, fixed frequency architecture to regulate the LED current, which is measured through an external current sense resistor. Its low

文件：486.57 Kbytes 页数：11 Pages

MPS

美国芯源

2.5V-6V Vin升压WLED驱动器

MP1488是一款升压变换器，可通过一个5V系统轨驱动多达27个WLED（9串，每串3个WLED）。MP1488 采用电流控制模式和定频架构来调节LED 电流，并可以通过外部电流采样电阻来检测 LED 电流。其 104mV 的低平均反馈电压降低了功耗，提升了效率。该器件通过OV引脚监测输出电压，并在由于开路而出现过压情况时关闭变换器。\n\n MP1488具有欠压锁定（UVLO）保护、限流保护和用来在输出过载时防止芯片损坏的热过载保护。MP1488 采用小尺寸6引脚TSOT23 封装。 • 输入电压范围：2.5V 至 6V\n• 集成功率 MOSFET\n• 5V输入时最多可驱动27个白光LED\n• 效率高达92%\n• 超过1MHz 的固定开关频率\n• 开路负载关断\n• 104mV 低反馈电压\n• 软启动/PWM调光\n• 欠压锁定（UVLO）保护、过温关断保护\n• 内部800mA限流保护\n• 采用 TSOT23-6 封装;

MPS

美国芯源

丝印：IZ9YW；Package：TSOT23-6；800mA Fixed Frequency White LED Driver

DESCRIPTION The MP1488 is a step-up converter designed for driving up to 27 WLEDs (9 strings of 3 WLEDs each) from a 5V system rail. The MP1488 uses a current mode, fixed frequency architecture to regulate the LED current, which is measured through an external current sense resistor. Its low

文件：486.57 Kbytes 页数：11 Pages

MPS

美国芯源

Integrated Circuit FM IF Amp, Demod w/Muting, Center Meter and Signal Meter

Features: • Low Distortion • High Signal–to–Noise Ratio • High Limiting Sensitivity • Large Muting Attenuation • Provides Specific Signal for Direct Drive of a Signal Meter with Good Linearity • Muting Level is Variable by Adjusting the External Resistor • Hig Stability Agains

文件：25 Kbytes 页数：3 Pages

NTE

Bipolar Junction Transistor

FEATURES ● High voltage capability ● Features of good high temperature ● High switching speed APPLICATION Fluorescent Lamp、 Electronic Ballast、 Computer Switch Power Supply

文件：122.17 Kbytes 页数：3 Pages

JINGDAO

晶导

RF & MICROWAVE TRANSISTORS UHF MOBILE APPLICATIONS

HF to 2000 MHz Class AB Common Source - PowerSO-10RF VHF / UHF radio and digital cellular BTS applications HF to 2000MHz class AB common source - PowerFLAT VHF / UHF radio applications HF to 2000MHz class AB common cource - ceramic packages UHF TV and digital cellular BTS applications 2

文件：60.04 Kbytes 页数：4 Pages

STMICROELECTRONICS

意法半导体