High Speed Current Mode Pulse Width Modulators

DESCRIPTION The LT?1241 series devices are 8-pin, fixed frequency, current mode, pulse width modulators. They are improved plug compatible versions of the industry standard UC1842 series. These devices have both improved speed and lower quiescent current. The LT1241 series is optimized for off-li

文件：273.01 Kbytes 頁(yè)數(shù)：16 Pages

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High Speed Current Mode Pulse Width Modulators

DESCRIPTION The LT?1241 series devices are 8-pin, fixed frequency, current mode, pulse width modulators. They are improved plug compatible versions of the industry standard UC1842 series. These devices have both improved speed and lower quiescent current. The LT1241 series is optimized for off-li

文件：273.01 Kbytes 頁(yè)數(shù)：16 Pages

LINEAR

High Speed Current Mode Pulse Width Modulators

DESCRIPTION The LT?1241 series devices are 8-pin, fixed frequency, current mode, pulse width modulators. They are improved plug compatible versions of the industry standard UC1842 series. These devices have both improved speed and lower quiescent current. The LT1241 series is optimized for off-li

文件：277.48 Kbytes 頁(yè)數(shù)：16 Pages

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High Speed Current Mode Pulse Width Modulators

文件：331.65 Kbytes 頁(yè)數(shù)：16 Pages

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凌力爾特

High Speed Current Mode Pulse Width Modulators

文件：273 Kbytes 頁(yè)數(shù)：16 Pages

LINER

凌力爾特

High Speed Current Mode Pulse Width Modulators

文件：273.01 Kbytes 頁(yè)數(shù)：16 Pages

LINER

凌力爾特

High Speed Current Mode Pulse Width Modulators

文件：295.03 Kbytes 頁(yè)數(shù)：16 Pages

LINER

凌力爾特

High Speed Current Mode Pulse Width Modulators

文件：273.01 Kbytes 頁(yè)數(shù)：16 Pages

LINER

凌力爾特

High Speed Current Mode Pulse Width Modulators

文件：273.01 Kbytes 頁(yè)數(shù)：16 Pages

LINER

凌力爾特

高速電流模式脈寬調(diào)制器

LT?1241 系列器件是 8 引腳、固定頻率、電流模式、脈寬調(diào)制器。它們是業(yè)界標(biāo)準(zhǔn)的 UC1842 系列的改良型插接兼容版本。這些器件兼具改善的速度與較低的靜態(tài)電流。LT1241 系列專為離線式及 DC/DC 轉(zhuǎn)換器應(yīng)用而設(shè)計(jì)。它們內(nèi)置一個(gè)溫度補(bǔ)償型基準(zhǔn)、高增益誤差放大器、電流檢測(cè)比較器和一個(gè)高電流圖騰柱輸出級(jí)，非常適合于驅(qū)動(dòng)功率 MOSFET。啟動(dòng)電流被減小至 250μA 以下。輸出級(jí)中的交叉?zhèn)鲗?dǎo)電流尖峰已被消除，從而使 500kHz 操作切實(shí)可行。這些器件融入了諸多新特點(diǎn)。電流檢測(cè)比較器增加了前沿消隱功能。振蕩器電路添加了針對(duì)頻率和吸收電流的修整功能，并對(duì)這兩個(gè)參數(shù)做了嚴(yán)格的規(guī)定。在導(dǎo)通 ? 低啟動(dòng)電流：<250μA\n\n? 50ns 電流檢測(cè)延遲\n\n? 電流模式操作：至 500kHz\n\n? 引腳與 UC1842 系列相兼容\n\n? 具遲滯的欠壓閉鎖\n\n? 無(wú)交叉?zhèn)鲗?dǎo)電流\n\n? 經(jīng)修整的帶隙基準(zhǔn)\n\n? 1A 圖騰柱輸出\n\n? 經(jīng)修整的振蕩器頻率和吸收電流\n\n? 在欠壓閉鎖期間主動(dòng)下拉基準(zhǔn)和輸出\n\n? 高電平輸出箝位：18V\n\n? 電流檢測(cè)前沿消隱;

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