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IS31LT3173 Datasheet 10-to-200ma Constant-current Led Driver

Manufacturer: Lumissil

Overview: IS31LT3172/73 10-TO-200MA CONSTANT-CURRENT LED DRIVER June 2022.

This datasheet includes multiple variants, all published together in a single manufacturer document.

General Description

The IS31LT3172 and IS31LT3173 are adjustable linear current devices with excellent temperature stability.

A single resistor is all that is required to set the operating current from 10mA to 200mA.

The devices can operate from an input voltage from 2.5V to 42V with a minimal voltage headroom of 1V (typical).

Key Features

  • Low-side current sink - Current preset to 10mA - Adjustable from 10mA to 200mA with external resistor selection.
  • Wide input voltage range from - 2.5V to 42V (IS31LT3173) - 5V to 42V (IS31LT3172) with a low dropout of typical 1V.
  • Up to 10kHz PWM input (IS31LT3173 only).
  • Protection features: - 0.26%/K negative temperature coefficient at high temp for thermal protection.
  • Up to 1.8W power dissipation in a small SOP-8EP package.
  • RoHS compliant (P.

IS31LT3173 Distributor