A2550KLP-T Datasheet

IC型號：
A2550KLP-T
PDF描述：
Relay Driver with 5 V Regulator for Automotive Applications
文件大?。?/label>
550.85KB
PDF頁數(shù)：
16頁
芯片廠家：
ALLEGRO

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A2550

Relay Driver with 5 V Regulator

for Automotive Applications

Features and Benefits

鈻?/div>

Three independent low-side DMOS output drivers

Short-circuit protection of drivers

Eliminates need for flyback diodes on relays

Thermal shutdown

Separate precision 5 V regulator (2%)

Current clamp on 5 V regulator

16-pin TSSOP package with exposed thermal pad

Programmable reset (NPOR) delay time

Programmable watchdog

Automotive voltage and temperature ranges

Active clamps for automotive load dump specifications

Lead (Pb) free

Description

Large numbers of relay-based applications require the use of a

microprocessor which implements complex system control. In

these systems, there is the need for microprocessor logic supply

voltage, power-on reset circuitry, and watchdog capabilities. The

Allegro

廬

A2550 combines the functions of voltage regulator,

watchdog, and reset, as well as three low-side DMOS relay

driver outputs. Primarily targeted at automotive applications,

this IC is designed to provide robust performance over extended

voltage and temperature ranges.

Three low-side DMOS drivers can drive inductive loads, such

as relay coils. Each driver integrates rugged voltage clamps

which survive automotive load dump pulses up to 48 V. The

40 V rating on VBB also ensures adequate survival in harsh

automotive environments.

A 5 V linear regulator provides 40 mA of output current, with

a tolerance of 2% over the operating temperature range. To

enhance the usefulness of the IC in automotive applications,

the 5 V regulator output, as well as the three low-side driver

outputs are protected against overcurrent conditions.

Package: 16 pin TSSOP (suffix LP) with

exposed pad

Approximate Scale

Continued on the next page鈥?/div>

Typical Application

IN1

IN2

IN3

LGND

NPOR

WDI

VREG5

OUT1

OUT2

System

Logic

A2550

OUT3

PGND

CWD

CPOR

ENBAT

VBB

Relays or other

inductive loads

0.47

渭F

X7R

2550-DS

型號

版本

描述

廠商

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A2550

英文版

Relay Driver with 5 V Regulator for Automotive Applications

A2550
A2550

英文版

Relay Driver with 5 V Regulator for Automotive Applications

ALLEGRO [A...

A2550
A2557

英文版

PROTECTED QUAD LOW-SIDE DRIVER WITH FAULT DETECTION & SLEEP ...

A2557
A2557

英文版

PROTECTED QUAD LOW-SIDE DRIVER WITH FAULT DETECTION & SLEEP ...

ALLEGRO [A...

A2557
A2559

英文版

PROTECTED QUAD POWER DRIVER

A2559
A2559

英文版

PROTECTED QUAD POWER DRIVER

ALLEGRO [A...

A2559
A255D

英文版

Consumer IC

ETC

A255D
A2550N

英文版

RF Amplifier for CD Players

A2550N
A2550N

英文版

RF Amplifier for CD Players

SONY [Sony...

A2550N
A2557EB

英文版

PROTECTED QUAD LOW-SIDE DRIVER WITH FAULT DETECTION & SLEEP ...

A2557EB
A2557EB

英文版

PROTECTED QUAD LOW-SIDE DRIVER WITH FAULT DETECTION & SLEEP ...

ALLEGRO [A...

A2557EB
A2557EB

英文版

PROTECTED QUAD LOW-SIDE DRIVER WITH FAULT DETECTION & SLEEP ...

ALLEGRO [A...

A2557EB
A2557KB

英文版

PROTECTED QUAD LOW-SIDE DRIVER WITH FAULT DETECTION & SLEEP ...

A2557KB
A2557KB

英文版

PROTECTED QUAD LOW-SIDE DRIVER WITH FAULT DETECTION & SLEEP ...

ALLEGRO [A...

A2557KB
A2557KB

英文版

PROTECTED QUAD LOW-SIDE DRIVER WITH FAULT DETECTION & SLEEP ...

ALLEGRO [A...

A2557KB
A2557SB

英文版

PROTECTED QUAD LOW-SIDE DRIVER WITH FAULT DETECTION & SLEEP ...

A2557SB
A2557SB

英文版

PROTECTED QUAD LOW-SIDE DRIVER WITH FAULT DETECTION & SLEEP ...

ALLEGRO [A...

A2557SB
A2557SB

英文版

PROTECTED QUAD LOW-SIDE DRIVER WITH FAULT DETECTION & SLEEP ...

ALLEGRO [A...

A2557SB
A2557XB

英文版

PROTECTED QUAD LOW-SIDE DRIVER WITH FAULT DETECTION & SLEEP ...

ETC

A2557XB
A2557EEB

英文版

PROTECTED QUAD LOW-SIDE DRIVER WITH FAULT DETECTION & SLEEP ...

A2557EEB

A2550KLP-T Datasheet

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