Datasheet > MAX20478

MAX20478

更新时间： 2024-04-09 18:59:59

品牌	Logo	应用领域
亚德诺 - ADI		监控
页数	文件大小	规格书
2页	227K
描述
带看门狗的两路/三路输入汽车电压监控器

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中文翻译

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数据手册

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MAX20478 数据手册

Two/Three-Input Automotive Voltage Monitor

with Watchdog

MAX20478

General Description

Benefits and Features

The MAX20478 is a complete ASIL D-compliant system-

on-a-chip (SoC) voltage monitor with two or three

voltage monitor inputs. Inputs 1 and 2 can be configured

to monitor a voltage between 0.5V and 3.6875V in

12.5mV steps, while input 3 can be configured to monitor

a voltage between 0.5V to 5.6V in 20mV steps. Each

input has programmable OV/UV thresholds of between

2.5% and 10% with ±0.8% accuracy. The MAX20478

also contains a programmable windowed watchdog. The

MAX20478 significantly reduces system size and

component count, while improving reliability, compared

to separate ICs or discrete components. The device is

designed to operate over the ambient temperature range

of -40°C to +125°C.

•

Small Solution

• 2.35V to 5.50V Operating Supply Voltage

• Only One External Component Required

• 125µA Operating Current

•

High Precision

• Selectable 102.5% to 110% OV Monitors

• Selectable 97.5% to 90% UV Monitors

• ±0.8% Accuracy

• 0.5% Step Size

• ASIL D Compliance

•

Highly Integrated

• MAX20478A - Two Voltage Monitoring Inputs

• MAX20478B - Three Voltage Monitoring Inputs

• Windowed Watchdog

• OTP Configuration with Error-Correcting Code

• Programmable RESET1 and RESET2 Pins

Applications

•

Advanced Driver-Assistance Systems

Autonomous Driving Processing Systems

Remote Sensor Modules

Power System Supervision and Microcontroller Unit/

System-on-a-Chip Monitoring

10-Pin Side-Wettable TDFN with Exposed Pad (3mm

x 3mm)

AEC-Q100 Qualified

•

-40°C to +125°C Operating Temperature

Simplified Block Diagram

Ordering Information appears at end of data sheet.

IN[1:3]

OV[x]

UV[x]

REF

VIN[x]

OFF

CONTROL

AND

MONITORING

WDI

WDDIS

RESET1

RESET2

OSC

REF

OTP

REF

UVLO

GND

19-101149; Rev 5; 11/23

中文翻译

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