IS32LT3965 Datasheet PDF - Lumissil 1.5-AMPERE PWM DIMMABLE SYNCHRONOUS BUCK LED DRIVER Specs

IS32LT3965 - 1.5-AMPERE PWM DIMMABLE SYNCHRONOUS BUCK LED DRIVER

Datasheet Summary

Description

The IS32LT3965 is a synchronous DC/DC switching LED driver that integrates high-side and low-side Nchannel MOSFETs to operate in a Buck configuration.

Features

Wide input voltage supply from 3.8V to 38V.
High-side sense and true average output current control, up to 1.5A maximum over temperature range.
Operating frequency up to 2.2MHz.
Forced Continuous Conduction Mode (FCCM) operation.
Integrated high-side and low-side MOSFET switches.
Cycle-by-cycle current limit.
Dimming via PWM logic input or analog voltage - Supports LED thermal roll-off or LED binning.
Internal control loop.

Datasheet Details

Part number	IS32LT3965
Manufacturer	Lumissil
File Size	883.48 KB
Description	1.5-AMPERE PWM DIMMABLE SYNCHRONOUS BUCK LED DRIVER
Datasheet	IS32LT3965 Datasheet
Additional preview pages of the IS32LT3965 datasheet.

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Full PDF Text Transcription

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IS32LT3965 1.5-AMPERE PWM DIMMABLE SYNCHRONOUS BUCK LED DRIVER WITH LED THERMAL PROTECTION AND FAULT REPORTING June 2024 GENERAL DESCRIPTION The IS32LT3965 is a synchronous DC/DC switching LED driver that integrates high-side and low-side Nchannel MOSFETs to operate in a Buck configuration. The device can operate from a wide input voltage between 3.8V and 38V and provides a constant current of up to 1.5A for driving a single LED or multiple series connected LEDs. The external resistor, RIS, is used to set a constant LED output current, while allowing the output voltage to be automatically adjusted for a variety of LED configurations. The IS32LT3965 operates in a fixed frequency mode during switching, up to 2.2MHz.

Published: Jul 16, 2024 |