LMD18400 - Quad High Side Driver

National Semiconductor

LMD18400 Datasheet Preview — Preview of LMD18400 PDF

Datasheet Details

Part number	LMD18400
Manufacturer	National Semiconductor
File Size	329.11 KB
Description	Quad High Side Driver
Datasheet	LMD18400_NationalSemiconductor.pdf

LMD18400 Product details

Description

The LMD18400 is a fully protected quad high side driver It contains four common-drain DMOS N-channel power switches each capable of switching a continuous 1 Amp load (l3 Amps transient) to a common positive power supply The switches are fully protected from excessive voltage current and temperature An instantaneous power sensing circuit calculates the product of the voltage across and the current through each DMOS switch and limits the power to a safe level The device can be disabled to produce

Features

Y Y Y Y Y Y Y Y Y Y Y Four independent outputs with l3A peak 1A continuous current capability 1 3X maximum ON resistance over temperature True instantaneous power limit for each switch High survival voltage (60 VDC 80V transient) Shorted load (to ground and supply) protection Overvoltage shutdown at VCC l 35V LS TTL CMOS compatible logic inputs and outputs k 10 mA supply current in ‘‘sleep’’ mode b 5V output clamp for discharging inductive loads Serial data interface for 11 diagnostic checks S.

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Published: Apr 25, 2005 |