MAX16819ATT+T

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

MAX16819 High-Brightness LED Drivers

Analog Devices MAX16819 2MHz high-brightness LED (HB LED) drivers provide high-side current sense and 5000:1 dimming. They are a cost-effective solution for automotive interior/exterior lighting, architectural and ambient lighting, LED bulbs such as MR16, and LED illumination applications. Analog Devices MAX16819 HB LED drivers operate from a 4.5V to 28V input voltage range and feature a 5V/10mA onboard regulator. A high-side current-sense resistor adjusts the output current, and a dedicated PWM input (DIM) enables a wide range of pulsed dimming. The MAX16819 features high-side current sensing and integrated current-setting circuitry for the reduced external component count while delivering an LED current with ±5% accuracy.