A8181 Datasheet HIGH BRIGHTNESS LED DRIVER

Manufacturer: AiT Semiconductor

A8181 high brightness led driver by AiT Semiconductor - Datasheet Preview

Datasheet Details

Part number	A8181
Manufacturer	AiT Semiconductor
File Size	445.67 KB
Description	HIGH BRIGHTNESS LED DRIVER
Download	A8181 Download (PDF)

General Description

The A8181 is a continuous mode inductive step-down converter, 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 36V and provides an externally output current up to 1.2A.

Depending upon supply voltage and external components, this can provides up to 24 watts of output power.

Overview

AiT Semiconductor Inc.

www.ait-ic.com A8181 36V, 1.2A LED STEP-DOWN HIGH BRIGHTNESS LED DRIVER WITH INTERNAL SWITCH.

Key Features

Simple low parts count.
Internal 36V NDMOS switch.
Up to 1.2A output current.
Single pin on/off and brightness control using DC voltage or PWM.
Soft Start.
High efficiency (up to 97%).
Wide input voltage range: 6V to 36V.
Output shutdown.
Up to 1MHz switching frequency.
Inherent open-circuit LED protection.
Typical 3% output current accuracy.
High-side current sense.
Hysteretic control: no compensation.
Adjustable constant LE.

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