Datasheet > A8519-1

A8519-1

更新时间： 2022-02-26 10:34:33

品牌	Logo	应用领域
急速微 - ALLEGRO		/
页数	文件大小	规格书
35页	4309K
描述
Fully integrated 42 V MOSFET for boost converter

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A8519-1 数据手册

A8519 and

A8519-1

Wide Input Voltage Range, High-Efficiency,

Fault-Tolerant LED Driver

THERMAL CHARACTERISTICS: May require derating at maximum conditions; see application information.

Characteristic

Symbol

Test Conditions ^[1]

Value

Unit

LP Package on 2-layer 3 in²PCB

°C/W

ET Package on 2-layer 3 in²PCB

Contact factory

°C/W

Package Thermal Resistance

R_θJA

LP Package on 4-layer PCB Based on JEDEC Standards

ET Package on 4-layer PCB Based on JEDEC Standards

¹Additional thermal information available on the Allegro website.

Table of Contents

PWM Dimming

APWM Pin

Extending LED Dimming Ratio

Analog Dimming

LED Short Detect

Overvoltage Protection

Boost Switch Overcurrent Protection

Input Overcurrent Protection and Disconnect Switch

Setting the Current Sense Resistor

Input UVLO

VDD

Specifications

Selection Guide

Absolute Maximum Ratings

Thermal Characteristics

Functional Block Diagram

Pinout Diagrams and Terminal List

Characteristic Performance

Functional Description

Enabling the IC

Powering Up: LED Pin Short-to-GND Check

Powering Up: Boost Output Undervoltage

Soft-Start Function

Shutdown

Dithering Feature

Fault Protection During Operation

Frequency Selection

SYNC

Application Information

Design Example

LED Current Setting and LED Dimming

Package Outline Drawings

Allegro MicroSystems, LLC

115 Northeast Cutoff

Worcester, Massachusetts 01615-0036 U.S.A.

1.508.853.5000; www.allegromicro.com

1 234 5 6 7...35

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