用于 20kHz PWM 調光的 LT3755EUD-2 降壓模式 500mA LED
驅動器的典型應用電路。 LT3755-2 是一款 DC/DC
控制器,設計用作驅動高電流 LED 的
恒流源。它通過內部 7.15V
穩壓電源驅動低側外部 N 溝道功率 MOSFET。固定頻率、電流模式架構可在較寬的
電源和輸出電壓范圍內穩定運行
說明
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Typical Application Circuit for LT3755EUD-2 Buck Mode 500mA LED Driver for 20kHz PWM Dimming. The LT3755-2 is a DC/DC controller designed to operate as a constant-current source for driving high current LEDs. It drives a low side external N-channel power MOSFET from an internal regulated 7.15V supply. The fixed frequency, current mode architecture results in stable operation over a wide range of supply and output voltages