IS31LT3171 - ISSI

IS31LT3171 10-TO-150MA CONSTANT-CURRENT LED DRIVER

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.

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-free) package APPLICATIONS
 Linear current sink
 Current limiter for power supplies
 LED signage
 Retail lighting in refri.