Datasheet > MAX1808

MAX1808

更新时间： 2023-12-20 18:45:07

品牌	Logo	应用领域
亚德诺 - ADI		控制器
页数	文件大小	规格书
10页	229K
描述
微功耗、可调过压保护控制器

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数据手册

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MAX1808 数据手册

19-1791; Rev 0; 10/00

Micropower Adjustable Overvoltage

Protection Controllers

General Description

Features

The MAX1807/MAX1808 monitor up to five supply rails

for an overvoltage condition and provide a latched out-

put when any one of the five supplies exceeds the trip

thresholds. The latched output drives an external P-

channel load switch to remove power when an over-

voltage condition is detected. The latch is reset when a

logic low is input to ON or the power supply is cycled.

o Five 3% Accurate Overvoltage Comparators

o Series PFET Gate Driver with VGS Limiter

o 21µA Quiescent Supply Current

o 4µA Shutdown Current

o 4.4V to 28V Operating Voltage Range

The MAX1807 provides a 28V open-drain fault output

that can be used to trigger an alert, trip a resetable

fuse, or for other purposes. The MAX1808 includes a

low-battery comparator with hysteresis to drive the DP

output high, turning off the external P-channel switch

when the input voltage is too low.

o 3% Accurate Comparator with 10% Hysteresis for

Low-Battery Detection (MAX1808)

o 28V Open-Drain N-Channel Output (MAX1807)

o Small 10-Pin µMAX Package

The MAX1807/MAX1808 are available in a miniature 10-

pin µMAX package.

Ordering Information

________________________Applications

Notebook Computers

PART

TEMP. RANGE

-40°C to +85°C

PIN-PACKAGE

10 µMAX

Power-Supply Modules

MAX1807EUB

MAX1808EUB

Multi-Output Power Supplies

10 µMAX

Pin Configuration and Typical Operating Circuit appear at

end of data sheet.

Functional Diagram

2.5V

INTERNAL

POWER-ON

1V REF

REF OK

SUPPLY

PMOS

POWER

DRIVER

RESET

(60µs)

(MAX1808)

IN1

IN2

FAULT

(MAX1807)

IN3

IN4

IN5

GND

MAX1807

MAX1808

________________________________________________________________ Maxim Integrated Products

For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

12 3 4 5 6 7...10

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与MAX1808相关器件

型号	品牌	获取价格	描述	数据表
MAX1808EUB	MAXIM	获取价格	Micropower Adjustable Overvoltage Protection Controllers
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MAX1809	ADI	获取价格	3A、1MHz、DDR存储器端接电源
MAX1809EEE	MAXIM	获取价格	3A, 1MHz, DDR Memory Termination Supply
MAX1809EEE+	MAXIM	获取价格	Switching Regulator, Current-mode, 4.7A, 1000kHz Switching Freq-Max, PDSO16, QSOP-16
MAX1809EEE+T	MAXIM	获取价格	Switching Regulator, Current-mode, 4.7A, 1000kHz Switching Freq-Max, PDSO16, QSOP-16
MAX1809EEE-T	MAXIM	获取价格	Switching Regulator, Current-mode, 4.7A, 1000kHz Switching Freq-Max, PDSO16, QSOP-16
MAX1809EGI	MAXIM	获取价格	SMPS Controller
MAX1809EGI-T	MAXIM	获取价格	Switching Regulator, Current-mode, 4.7A, 1000kHz Switching Freq-Max, CQCC28, QFN-28