MAX25512ATG/V+

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.

MAX25512 4-Channel LED Backlight Driver

Analog Devices MAX25512 4-Channel LED Backlight Driver is a white LED backlight driver with an integrated current-mode boost converter that operates over a switching frequency range of 400kHz to 2.2MHz and incorporates a spread-spectrum. Phase-shifting of the output channels is included as an option to further reduce electromagnetic interference (EMI). The device provides up to 120mA per channel and includes a control output for an external nMOS series switch. It is capable of operating down to 3V after startup. The MAX25512 has an I²C interface to enable flexibility of control and detailed diagnostics. The Analog Devices MAX25512 is available in a compact TQFN package and operates over the temperature range -40°C to +125°C.

Optical ADI SLP