LTC1473LCGN#PBF

更新时间： 2024-09-25 12:58:31

品牌	Logo	应用领域
凌特 - Linear		驱动器开关
页数	文件大小	规格书
16页	219K
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LTC1473LCGN#PBF 数据手册

LTC1473

Dual PowerPath^TM

Switch Driver

FEATURES

DESCRIPTIO

The LTC^®1473 provides a power management solution for

single and dual battery notebook computers and other

portableequipment. TheLTC1473drivestwosetsofback-

to-backN-channelMOSFETswitchestoroutepowertothe

input of the main system switching regulator. An internal

boost regulator provides the voltage to fully enhance the

logic level N-channel MOSFET switches.

■

Power Path Management for Systems with Multiple

DC Sources

■

AllN-ChannelSwitchingtoReducePowerLossesand

System Cost

Switches and Isolates Sources Up to 30V

■

AdaptiveHighVoltageStep-UpRegulatorforN-Channel

Gate Drive

■

Capacitor Inrush and Short-Circuit Current Limited

The LTC1473 senses current to limit surge currents both

into and out of the batteries and the system supply

capacitor during switch-over transitions or during fault

conditions. Auser-programmabletimermonitorsthetime

the MOSFET switches are in current limit and latches them

off when the programmed time is exceeded.

■

User-Programmable Timer to Limit Switch Dissipation

■

Small Footprint: 16-Pin Narrow SSOP

APPLICATIO S

■

Notebook Computers

■

Portable Instruments

A unique “2-diode mode” logic ensures system start-up

regardless of which input receives power first.

, LTC and LT are registered trademarks of Linear Technology Corporation.

PowerPath is a trademark of Linear Technology Corporation.

■

Handi-Terminals

Portable Medical Equipment

Portable Industrial Control Equipment

■

TYPICAL APPLICATION

MBRD340

Si9926DY

BAT1

MMBD2838LTI

LTC1473

IN1

GA1

SAB1

GB1

FROM POWER

MANAGEMENT

µP

DCIN

IN2

SENSE

DIODE

TIMER

INPUT OF SYSTEM

0.04Ω

HIGH EFFICIENCY DC/DC

SWITCHING REGULATOR

(LTC1735, ETC)

SENSE

TIMER

–

SENSE

4700pF

OUT

GA2

SAB2

GB2

1µF

1mH*

1µF

GND

MMBD914LTI

BAT2

1473 TA01

Si9926DY

*COILCRAFT 1812LS-105XKBC

12 3 4 5 6 7...16

中文翻译

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LTC1474CMS8-3.3#PBF	Linear	获取价格	LTC1474 - Low Quiescent Current High Efficiency Step-Down Converters; Package: MSOP; Pins:
LTC1474CMS8-3.3#TR	Linear	获取价格	LTC1474 - Low Quiescent Current High Efficiency Step-Down Converters; Package: MSOP; Pins:
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