IS31LT3948 - PFM MODE BOOST LED DRIVER

Product Overview

Lumissil

Part number	IS31LT3948
Manufacturer	Lumissil
File Size	500.61 KB
Description	PFM MODE BOOST LED DRIVER
Datasheet	IS31LT3948 Datasheet
Additional preview pages of the IS31LT3948 datasheet.

The IS31LT3948 is a PFM step-up DC-DC converter designed for driving the white LED arrays for large size LCD panel backlighting applications.

external PWM dimming, which allows the flexible control of the back-lighting luminance. The IS31LT3948 has a wide input voltage range from 5V to 100V (Note). An integrated OVP circuit protects the chip and the system even under no-load conditions. The chip is assembled in SOP-8 package. It operates from 5V to 100V over two temperature ranges of -40°C to +85°C and -40°C to +125°C. Note: The IS31LT3948 has an internal 5V shunt regulator connected to the VCC pin. A dropping resistor must be connect.

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Published: Jul 16, 2024 |