LT3942EUFD#PBF

IS32LT3175N/P Single-Channel Linear LED Drivers

ISSI IS32LT3175N/P Single-Channel Linear LED Drivers come with fade in/out and PWM dimming. The regulators serve as a stand-alone LED driver-configurable from 20mA to 150mA with external resistors, no microcontroller is necessary. A logic level “courtesy light” signal from the PWM pin can be interfaced to precisely drive the LED channel. The IS32LT3175P obtains a positive polarity PWM signal. In addition, the IS32LT3175N obtains a negative polarity PWM signal. The regulator integrates a 63-step fade-in and fades out the algorithm (Gamma correction). This causes the output LED current to increasingly rise up to the full source value after the EN pin is pulsed.

Optical ADI SLP

LT3942同步升降壓轉換器

Analog Devices LT3942同步升降壓轉換器是一種單片4開關同步升降壓LED驅動器。該驅動器可調節最高34V，具有高於、低於或等於輸出電壓的LED串電流。獨有的峰值降壓峰值升壓電流模式控制計劃允許可調節和可同步的300kHz至2MHz固定頻率運行，或可實現低EMI的內部25%三角形擴散光譜運行。憑藉3V至36V輸入、0V至36V輸出，以及運行區域之間的無縫低雜訊轉變，LT3942理想適用於汽車、工業及電池供電系統內的LED驅動器應用。