MP3378

4 路 WLED 控制器和高效率降壓變換器

MP3378 是一種集成解決方案，設(shè)計(jì)用于監(jiān)控器應(yīng)用。它包括集成 4 個(gè)背光電流通道的升壓控制器和用于內(nèi)部總線電壓或備用電源的高效率降壓變換器。4 串 WLED 控制器可驅(qū)動(dòng)外部 MOSFET 來(lái)提升輸入電源的輸出電壓。它可以將每個(gè) LED 燈串的電流調(diào)節(jié)至外部電流設(shè)置電阻設(shè)定的編程值。它獨(dú)立支持模擬和 PWM 調(diào)光功能，能夠滿足特殊的調(diào)光模式需求。此外，它集成了豐富的保護(hù)模式，包括過(guò)流保護(hù)（OCP）、過(guò)溫保護(hù)（OTP）、欠壓保護(hù)（UVP）、過(guò)壓保護(hù)（OVP）、LED 短路/開(kāi)路保護(hù)和電感/二極管短路保護(hù)。該高效率降壓變換器內(nèi)置 MOSFET 和同步整流器，在電流模式下工作。它提供了非常緊湊的; ? WLED 控制器\n? 4 串、每串最大 350mA 的 WLED 控制器\n? 高達(dá) 24V 的輸入電壓范圍\n? 2.5% 電流匹配精度\n? 可編程開(kāi)關(guān)頻率\n? PWM 和模擬調(diào)光模式\n? LED 開(kāi)路和短路保護(hù)\n? 可編程過(guò)壓保護(hù)\n? 可恢復(fù)過(guò)溫關(guān)斷保護(hù)\n? 過(guò)流保護(hù)\n? 過(guò)溫保護(hù)\n? 電感/二極管短路保護(hù)\n? 降壓變換器\n? 144mΩ/58mΩ 低導(dǎo)通阻抗內(nèi)部功率 MOSFET\n? 低靜態(tài)電流\n? 235 kHz 固定開(kāi)關(guān)頻率\n? 250 kHz 至 2 MHz 外部時(shí)鐘頻率同步功能\n? AAM 節(jié)電模式\n? 內(nèi)部軟啟動(dòng)\n? 過(guò)流保護(hù)和打嗝;

MP3378

24 V, 4-Channel WLED Controller Plus High-Efficiency Buck Converter

MP3378E

4-Channel WLED Controller And High Efficiency Buck Converter with EN pin

The MP3378E is a one-chip solution specially designed for monitor applications. The MP3378E includes a step-up WLED controller with four current channels for backlighting, and a high-efficiency buck converter for internal bus voltage or standby power. \nThe 4-string WLED controller drives an externa; ●WLED Controller:\n●4-String, Max 350mA/String, WLED Controller\n●Up to 24V Input Voltage Range\n●2.5% Current Matching Accuracy\n●Programmable Switching Frequency\n●PWM and Analog Dimming Mode\n●LED Open and Short Protection \n●Programmable Over-Voltage Protection\n●Recoverable Thermal Shutdown;

MP3378E

4-Channel WLED Controller with High-Efficiency Buck Converter

MP3378EGF

4-Channel WLED Controller With High-Efficiency Buck Converter Evalution Board

MP3378EGF

4-Channel WLED Controller with High-Efficiency Buck Converter

MP3378GF

絲?。?a target="_blank" title="Marking" href="/mps/marking.html">MPS；Package：TSSOP-28EP；24 V, 4-Channel WLED Controller Plus High-Efficiency Buck Converter

MP3378GS

4 Strings, Step Up WLED Controller Plus High Efficiency Step down Converter

MP3378GY

絲印：MPS；Package：SOIC-28；24 V, 4-Channel WLED Controller Plus High-Efficiency Buck Converter

MP3378EGF-Z

Package：28-SOIC（0.173"，4.40mm 寬）裸露焊盤；包裝：卷帶（TR）剪切帶（CT）Digi-Reel? 得捷定制卷帶 類別：集成電路（IC） LED 驅(qū)動(dòng)器 描述：IC LED DRVR CTRLR PWM 28TSSOP