IS31LT3957A - HIGH VOLTAGE LED LIGHTING CONTROLLER

Name: IS31LT3957A
SKU: IS31LT3957A-1539132

Lumissil

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Datasheet Details

Part number	IS31LT3957A
Manufacturer	Lumissil
File Size	604.77 KB
Description	HIGH VOLTAGE LED LIGHTING CONTROLLER
Datasheet	IS31LT3957A-Lumissil.pdf

IS31LT3957A 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 |