LT3517 的典型應用是一款
電流模式 DC/DC
轉換器,具有專門設計用于驅動 LED 的內部 1.5A、45V 開關。 LT3517 在升壓、降壓模式和降壓-升壓模式下用作 LED
驅動器。它結合了傳統的電壓環路和獨特的
電流環路,可用作
恒流源或恒壓源。可編程開關頻率可以優化外部組件的效率或組件尺寸。 LT3517 的開關頻率可與外部時鐘信號同步
說明
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Typical Application for LT3517 is a current mode DC/DC converter with an internal 1.5A, 45V switch specifically designed to drive LEDs. The LT3517 operates as a LED driver in boost, buck mode and buck-boost mode. It combines a traditional voltage loop and a unique current loop to operate as a constant-current source or constant-voltage source. Programmable switching frequency allows optimization of the external components for efficiency or component size. The switching frequency of LT3517 can be synchronized to an external clock signal