LT3967JFE#TRPBF

LT3967 LED Lighting Driver

Analog Devices Inc. LT3967 LED Lighting Driver is an LED bypass switching device for dimming individual LEDs in a string using a common current source. This LED driver features eight individually controlled floating source 15V/110mΩ NMOS switches. These eight switches are in parallel and/or in series to bypass current around LEDs in a string. The LT3967 driver employs the I²C serial interface to communicate with a microcontroller. This driver provides an internal clock generator and supports an external clock source for PWM dimming. The LT3967 LED driver reports fault conditions for each channel such as open LED and shorted LED. The four address pins allow 16 LT3967 devices to share the I²C bus and define the power-up state of the switches. Typical applications include automotive LED headlight clusters, large LED displays, and RGBW color-mixing lighting.

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