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IS31LT3170 - 10-TO-150MA CONSTANT-CURRENT LED DRIVER

General Description

The IS31LT3170 and IS31LT3171 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 150mA.

Key Features

  • Low-side current sink - Current preset to 10mA - Adjustable from 10mA to 150mA with external resistor selection.
  • Wide input voltage range from - 2.8V to 42V (IS31LT3171) - 5V to 42V (IS31LT3170) with a low dropout of 0.5V.
  • Up to 10kHz PWM input (IS31LT3171 only).
  • Protection features: - 0.2%/K negative temperature coefficient forthermal protection - Open circuit and over voltage protection.
  • Up to 1W power dissipation in a small SOT23-6 package.
  • RoHS compliant (Pb-fr.

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📁 Similar Datasheet

Part Number Description Manufacturer
IS31LT3170 10-TO-150MA CONSTANT-CURRENT LED DRIVER Lumissil
IS31LT3171 10-TO-150MA CONSTANT-CURRENT LED DRIVER Lumissil
IS31LT3172 10-TO-200MA CONSTANT-CURRENT LED DRIVER Lumissil
IS31LT3173 10-TO-200MA CONSTANT-CURRENT LED DRIVER Lumissil
IS31LT3177 10-TO-200MA CONSTANT-CURRENT LED DRIVER Lumissil

Other Datasheets by ISSI (now Infineon)

Part Number Description
IS31LT3171 10-TO-150MA CONSTANT-CURRENT LED DRIVER
IS31LT3117 4-CHANNEL CONSTANT CURRENT REGULATOR
IS31LT3135 MAIN/SUB DUAL-CHANNEL LED DRIVER
IS31LT3350 40V LED DRIVER
IS31LT3352 40V LED DRIVER

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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IS31LT3170/71 10-TO-150MA CONSTANT-CURRENT LED DRIVER Advanced Information July 2014 GENERAL DESCRIPTION The IS31LT3170 and IS31LT3171 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 150mA. The devices can operate from an input voltage from 2.8V to 42V with a minimal voltage headroom of 0.264V. Designed with a low dropout voltage; the device can drive LED strings close to the supply voltage without switch capacitors or inductors. The IS31LT3170/71 simplifies designs by providing a stable current without the additional requirement of input or output capacitors, inductors, FETs or diodes.