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IS31LT3957A - HIGH VOLTAGE LED LIGHTING CONTROLLER

Product Overview

Lumissil

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IS31LT3957A HIGH VOLTAGE LED LIGHTING CONTROLLER by Lumissil - Datasheet Preview — Datasheet preview – IS31LT3957A

Datasheet Details

Part number	IS31LT3957A
Manufacturer	Lumissil
File Size	604.77 KB
Description	HIGH VOLTAGE LED LIGHTING CONTROLLER
Datasheet	IS31LT3957A Datasheet
Additional preview pages of the IS31LT3957A datasheet.

Product details

Description

The IS31LT3957A is a current mode PWM controller designed to drive a low side external NMOS FET for wide input/output voltage range and high LED current applications.

Features

Wide high voltage input range: 5V to 75V.
Supports boost, buck-boost, SEPIC and buck topology.
±2% output current accuracy.
Adjustable operating frequency range of 100kHz~1MHz.
Programmable soft start to avoid inrush current.
Fixed under voltage lockout threshold.
EMI reduction capabilities - Programmable spread spectrum function - Operating frequency synchronization with external clock source.
Supports either analog or PWM dimming.
Fault protection.

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Published: Jul 16, 2024 |