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IS32LT3958 Datasheet High Voltage Led Lighting Controller

Manufacturer: Lumissil

Overview: IS32LT3958 HIGH VOLTAGE LED LIGHTING CONTROLLER WITH INTERNAL PWM GENERATOR AND FAULT PROTECTION August 2022.

Datasheet Details

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

General Description

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 current 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.

Key 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. With the internal PWM generator circuit, IS32LT3958 can achieve standalone dual brightness level output. The duty cycle and frequency of the internal PWM generator is easily programmed by external re.

More Datasheets from Lumissil

Part Number Description
IS32LT3958A HIGH VOLTAGE LED LIGHTING CONTROLLER
IS32LT3952 CONSTANT-CURRENT 1.5-AMPERE PWM DIMMABLE BUCK REGULATOR LED DRIVER
IS32LT3953 CONSTANT-CURRENT 3-AMPERE PWM DIMMABLE BUCK REGULATOR LED DRIVER
IS32LT3953B CONSTANT-CURRENT 3-AMPERE PWM DIMMABLE BUCK REGULATOR LED DRIVER
IS32LT3954 CONSTANT-CURRENT 3-AMPERE PWM DIMMABLE BUCK REGULATOR LED DRIVER
IS32LT3954A CONSTANT-CURRENT 3-AMPERE PWM DIMMABLE BUCK REGULATOR LED DRIVER
IS32LT3957A HIGH VOLTAGE LED LIGHTING CONTROLLER
IS32LT3961 CONSTANT-CURRENT 2-AMPERE PWM DIMMABLE BUCK REGULATOR LED DRIVER
IS32LT3965 1.5-AMPERE PWM DIMMABLE SYNCHRONOUS BUCK LED DRIVER
IS32LT3120 LINEAR LED DRIVER

IS32LT3958 Distributor