MAX818LESA+T

更新时间： 2024-11-08 13:11:03

品牌	Logo	应用领域
美信 - MAXIM		微处理器监控
页数	文件大小	规格书
16页	276K
描述
Power Supply Support Circuit, Fixed, 1 Channel, CMOS, PDSO8, ROHS COMPLIANT, SOP-8

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MAX818LESA+T 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Active	零件包装代码：	SOIC
包装说明：	ROHS COMPLIANT, SOP-8	针数：	8
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	Factory Lead Time：	25 weeks 5 days
风险等级：	5.11	可调阈值：	NO
模拟集成电路 - 其他类型：	POWER SUPPLY SUPPORT CIRCUIT	JESD-30 代码：	R-PDSO-G8
JESD-609代码：	e3	长度：	4.9 mm
湿度敏感等级：	1	信道数量：	1
功能数量：	1	端子数量：	8
最高工作温度：	85 °C	最低工作温度：	-40 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	SOP
封装等效代码：	SOP8,.25	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE	峰值回流温度（摄氏度）：	260
电源：	5 V	认证状态：	Not Qualified
座面最大高度：	1.75 mm	子类别：	Power Management Circuits
最大供电电流 (Isup)：	0.06 mA	最大供电电压 (Vsup)：	5.5 V
最小供电电压 (Vsup)：		标称供电电压 (Vsup)：	4.75 V
表面贴装：	YES	技术：	CMOS
温度等级：	INDUSTRIAL	端子面层：	Matte Tin (Sn)
端子形式：	GULL WING	端子节距：	1.27 mm
端子位置：	DUAL	处于峰值回流温度下的最长时间：	NOT SPECIFIED
宽度：	3.9 mm	Base Number Matches：	1

MAX818LESA+T 数据手册

19-0486; Rev 3; 12/05

+5V Microprocessor Supervisory Circuits

General Description

____________________________Features

♦ Precision Supply-Voltage Monitor:

4.65V (MAX81_L)

The MAX817/MAX818/MAX819 microprocessor (µP)

supervisory circuits simplify power-supply monitoring,

battery control, and chip-enable gating in µP systems

by reducing the number of components required.

These devices are designed for use in +5V-powered

systems. Low supply current (11µA typical) and small

package size make these devices ideal for portable

applications. The MAX817/MAX818/MAX819 are specif-

4.40V (MAX81_M)

♦ 11µA Quiescent Supply Current

♦ 200ms Reset Time Delay

♦ Watchdog Timer with 1.6sec Timeout

(MAX817/MAX818)

ically designed to ignore fast transients on V . Other

♦ Battery-Backup Power Switching; Battery Voltage

supervisory functions include active-low reset, backup-

battery switchover, watchdog input, battery freshness

seal, and chip-enable gating. The Selector Guide below

lists the specific functions available from each device.

Can Exceed V

♦ Battery Freshness Seal

♦ On-Board, 3ns Gating of Chip-Enable Signals

These devices offer two pretrimmed reset threshold volt-

ages for ±5ꢀ or ±1±ꢀ power suppliesꢁ :.45V for the L

versions and :.:±V for the M versions. The MAX817/

MAX818/MAX819 are available in space-saving µMAX

packages, as well as 8-pin DIP/SO.

(MAX818)

♦ Uncommitted Voltage Monitor for Power-Fail or

Low-Battery Warning (MAX817/MAX819)

♦ Manual Reset Input (MAX819)

______________Ordering Information

_____________________Selector Guide

†

PART

TEMP. RANGE

±°C to +7±°C

PIN-PACKAGE

8 Plastic DIP

8 SO

MAX817 MAX818 MAX819

FEATURE

MAX817_CPA

MAX817_CSA

MAX817_CUA

L/M

✔

L/M

✔

L/M

✔

Active-Low Reset

8 µMAX

✔

Backup-Battery Switchover

Power-Fail Comparator

Watchdog Input

Ordering Information continued on last page.

✔

—

✔

†

These parts offer a choice of reset threshold voltage. From the

table below, select the suffix corresponding to the desired

threshold and insert it into the blank to complete the part number.

Devices are available in both leaded and lead-free packaging.

Specify lead free by adding the + symbol at the end of the part

number when ordering.

✔

—

✔

Battery Freshness Seal

Manual Reset Input

Chip-Enable Gating

—

✔

—

8-DIP/SO/ 8-DIP/SO/ 8-DIP/SO/

Pin-Package

µMAX

SUFFIX

RESET THRESHOLD (V)

:.45

:.:±

Low-Power, Pin-

Compatible Upgrades forꢁ MAX492A

MAX49±A/

MAX7±3/

MAX7±:

—

_________________Pin Configurations

________________________Applications

Battery-Powered Computers and Controllers

Embedded Controllers

TOP VIEW

BATT

RESET

WDI

OUT

Intelligent Instruments

Critical µP Monitoring

MAX817

GND

PFI

Portable Equipment

PFO

Typical Operating Circuit appears at end of data sheet.

DIP/SO/µMAX

Pin Configurations continued at end of data sheet.

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

12 3 4 5 6 7...16

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MAX818LESA+T 替代型号

型号	品牌	替代类型	描述	数据表
MAX818LCSA+	MAXIM	完全替代	Power Supply Management Circuit, Fixed, 1 Channel, CMOS, PDSO8, 0.150 INCH, ROHS COMPLIANT

与MAX818LESA+T相关器件

型号	品牌	获取价格	描述	数据表
MAX818M	MAXIM	获取价格	+5V Microprocessor Supervisory Circuits
MAX818MCPA	MAXIM	获取价格	+5V Microprocessor Supervisory Circuits
MAX818MCSA	MAXIM	获取价格	+5V Microprocessor Supervisory Circuits
MAX818MCSA	ROCHESTER	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, 0.150 INCH, SOIC-8
MAX818MCSA+T	MAXIM	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, CMOS, PDSO8, ROHS COMPLIANT, SOP-8
MAX818MCSA-T	MAXIM	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, CMOS, PDSO8, 0.150 INCH, SOIC-8
MAX818MCUA	MAXIM	获取价格	+5V Microprocessor Supervisory Circuits
MAX818MCUA	ROCHESTER	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, 3 X 3 MM, MICRO, SOP-10
MAX818MCUA+	MAXIM	获取价格	Power Supply Management Circuit, Fixed, 1 Channel, CMOS, PDSO8, 3 X 3 MM, ROHS COMPLIANT,
MAX818MCUA+T	MAXIM	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, CMOS, PDSO8, ROHS COMPLIANT, UMAX-8

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