IS32LT3958 HIGH VOLTAGE LED LIGHTING CONTROLLER

Lumissil

Description

IS32LT3958 HIGH VOLTAGE LED LIGHTING CONTROLLER WITH INTERNAL PWM GENERATOR AND FAULT PROTECTION August 2022 GENERAL .
The IS32LT3958 is a current mode PWM controller designed to drive a low side external NMOS FET for wide input/output voltage range and high LED curren.

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Datasheet Specifications

Part number: IS32LT3958
Manufacturer: Lumissil
File Size: 729.83 KB
Datasheet: IS32LT3958-Lumissil.pdf
Description: HIGH VOLTAGE LED LIGHTING CONTROLLER

Features

* two independent analog dimming pins, ICTRL and ADJR. Input DC voltage in the range of 0.06V~2V on the ICTRL pin and/or ADJR pin is required for analog dimming. PWM dimming is achieved by directly modulating the PWM/EN pin with desired PWM duty cycle or by enabling the internal PWM generator circuit.

Applications

* An external resistor senses the high side output current of the LED string. A high side sense resistor is the most flexible current sensing scheme, since it functions in either boost or buck-boost mode configurations. The controller can be configured with an external resistor to operate between 100

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IS32LT3958 HIGH VOLTAGE LED LIGHTING CONTROLLER Lumissil

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