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LT8673中文資料亞德諾數(shù)據(jù)手冊PDF規(guī)格書

LT8673
廠商型號

LT8673

功能描述

Active Rectifier Controller with Voltage Monitoring

文件大小

243.7 Kbytes

頁面數(shù)量

2

生產(chǎn)廠商 Analog Devices
企業(yè)簡稱

AD亞德諾

中文名稱

亞德諾半導(dǎo)體技術(shù)有限公司官網(wǎng)

原廠標識
數(shù)據(jù)手冊

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更新時間

2024-12-24 21:17:00

LT8673規(guī)格書詳情

GENERAL DESCRIPTION

The LT?8673 is an active rectifier controller for reverse

input protection that includes two independent low IQ

comparators with programmable glitch rejection filters

for cold start pulse detection and two voltage monitoring

protection pins to sense the battery voltage safely using

an external resistive divider and ADC (analog-to-digital

converter). The highly integrated comparators and active

rectifier solution greatly simplify the Bill of Materials

(BOM) and shrinks the printed circuit board (PCB) area.

The controller drives an external N-channel Metal-oxide

semiconductor field-effect transistor (MOSFET) to replace

a power Schottky diode. Its very low quiescent current

and fast transient response meet the tough requirements

in automotive applications where AC input signals of up

to 100kHz are present. These signals are rectified with

minimum power dissipation on the external MOSFET,

simplifying thermal management on the PCB.

With a drop of only 20mV, the LT8673 solution eases the

minimum input voltage requirement during cold crank

and start-stop, allowing simpler and more efficient circuits.

A fast turn-off minimizes reverse current transients

if the input power source fails or is shorted. An available

shutdown mode reduces the quiescent current to 3.8μA.

An integrated auxiliary boost regulator provides the

required boost voltage to turn the external MOSFET fully

on. A FAULT pin signals if the external FET is not ready to

take load current.

FEATURES

? Reverse Input Protection to -40V

? Improved Performance Compared to a Schottky

Diode

? Reduce Power Dissipation by > 90

? Reduce Drop to 20mV

? Ultrafast Transient Response

Rectifies 6VP-P Up to 50kHz

Rectifies 2VP-P Up to 100kHz

? Wide Operating Voltage Range: 3V to 42V

? Two Integrated Comparators for Cold Crank

Detection

? Programmable Anti-glitch Filters

? Dedicated Enable Pin (ENR)

? Voltage Monitoring Protection Pins

? Low 55μA Quiescent Current in Operation

? Low 3.8μA Shutdown Current

? Accurate 1.2V Enable Pin Threshold

? Small 20-Lead 3mm x 4mm Side-Wettable Quad Flat

No-Lead (QFN) Package

? AEC-Q100 Qualified for Automotive Applications

APPLICATIONS

? Automotive Battery Protection

? Industrial Supplies

? Portable Instrumentation

產(chǎn)品屬性

  • 型號:

    LT8673

  • 功能描述:

    Optoelectronic

供應(yīng)商 型號 品牌 批號 封裝 庫存 備注 價格
ADI/亞德諾
24+
QFN-24
860000
明嘉萊只做原裝正品現(xiàn)貨
詢價
LT
23+
NA/
7200
優(yōu)勢代理渠道,原裝正品,可全系列訂貨開增值稅票
詢價
ADI/亞德諾
20+
24-LeadQFN(3mmx5mmx0
33680
ADI全新原裝-可開原型號增稅票
詢價
Analog Devices Inc
23+/24+
24-WFQFN
8600
只供原裝進口公司現(xiàn)貨+可訂貨
詢價
LT
QFN-24
207733
一級代理原裝正品,價格優(yōu)勢,支持實單!
詢價
LINEAR/凌特
22+
QFN-24P
20000
原裝現(xiàn)貨,實單支持
詢價
LINEAR/凌特
18+
DFN
15911
全新原裝現(xiàn)貨,可出樣品,可開增值稅發(fā)票
詢價
ADI(亞德諾)/LINEAR
1932+
QFN-24_3x5mm
2789
向鴻優(yōu)勢倉庫庫存-絕對原裝正品-不做假貨!
詢價
LINEAR
22+23+
QFN
31279
絕對原裝正品全新進口深圳現(xiàn)貨
詢價
LT
2022
QFN-24
80000
原裝現(xiàn)貨,OEM渠道,歡迎咨詢
詢價