UM1361S Datasheet Hysteretic Buck High Brightness LED Driver

Manufacturer: Union Semiconductor

UM1361S hysteretic buck high brightness led driver by Union Semiconductor - Datasheet Preview

Datasheet Details

Part number	UM1361S
Manufacturer	Union Semiconductor
File Size	431.51 KB
Description	Hysteretic Buck High Brightness LED Driver
Datasheet	UM1361S Datasheet

General Description

The UM1361S is a PWM step-down converter with internal power switch, designed for driving single or multiple series connected LEDs efficiently from a voltage source higher than the LED voltage.

The device operates from an input supply between 6V and 40V and employs hysteretic control with a high side current sense resistor to set the constant output current up to 1A.

The device is well suited for applications requiring a wide input range.

Overview

UM1361S Hysteretic Buck High Brightness LED Driver with Internal Switch UM1361S.

Key Features

z Hysteretic Control with High Side Current Sensing z Integrated 40V 0.5Ω NDMOS z > 90% Efficiency z Wide Input Voltage Range: 6V to 40V z ± 5% LED Current Accuracy z Adjustable Constant LED Current z Analog or PWM Control Signal for PWM Dimming z Over Temperature, Open Circuit LED Protection z Up to 1MHz Switching Frequency z Pb-Free SOT23-5 Package ________________________________________________________________________ http://www. union-ic. com Rev.06 May.2016 1/13 Pin Configurations Top V.

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