Datasheet > MAX6399

MAX6399

更新时间： 2024-10-05 14:57:39

品牌	Logo	应用领域
亚德诺 - ADI		开关控制器高压
页数	文件大小	规格书
10页	170K
描述
高压、过压/欠压保护开关控制器

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中文翻译

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数据手册

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MAX6399 数据手册

High-Voltage, Overvoltage/

Undervoltage, Protection

Switch Controller

MAX6399

General Description

Benefits and Features

The MAX6399 is a small overvoltage and undervoltage

protection circuit. The device can monitor a DC-DC out-

put voltage and quickly disconnect the power source

from the DC-DC input load when an overvoltage condi-

tion occurs. A power-OK output signals when the

DC-DC input voltage falls below an adjustable thresh-

old. This controller architecture provides the ability to

size the external n-channel MOSFET to meet specific

load current requirements.

• High-Voltage Capability (72V) Allows Direct Monitoring,

Ensuring Reliable System Operation in Automotive and

Industrial Applications

• Wide Supply Voltage Range (5.75V to 72V)

• Specified from -40°C to +125°C

• Adjustable DC-DC Input Undervoltage-Threshold

Power-OK Output

• Adjustable DC-DC Output Overvoltage Thresholds

• Integrated Protection Features Improve

When the DC-DC monitored output voltage is below the

user-adjustable overvoltage threshold, the GATE output

of the MAX6399 goes high to enhance the n-channel

MOSFET. The MAX6399 offers internal charge-pump

circuitry that allows the GATE voltage to be 10V above

System Reliability

• Internal Charge Pump Ensures n-Channel MOSFET

is Fully Enhanced During Normal Operation

(V = 10V)

• Fast GATE Shutoff During Overvoltage with 20mA

Sink Capability

the input voltage (V

= 10V) to fully enhance the

external n-channel MOSFET, thus minimizing the drain-

to-source resistance.

• Latches Off External n-Channel MOSFET During

High-Voltage Transients

When the monitored output voltage rises above the

user-adjusted overvoltage threshold, the GATE output

rapidly pulls low to shut off the MOSFET. The MOSFET

remains latched off until either the MAX6399 input

power or SHDN input is cycled. The MAX6399 includes

a logic-low shutdown input that disables the GATE. An

internal overtemperature detector also disables the

gate when the MAX6399 temperature reaches the

thermal-shutdown threshold.

• Overtemperature-Shutdown Protection

Ordering Information

PART

PIN-PACKAGE

TOP MARK

MAX6399ATA-T

8 TDFN

ANE

The device operates over a wide supply voltage range

(5.75V to 72V) and is offered in a small TDFN package,

fully specified from -40°C to +125°C.

Applications

Networking

Telecom

RAID

Typical Operating Circuit

Server

DC-DC

CONVERTER

Pin Configuration

OUT

EN GND

TOP VIEW

LOAD

GATE

12V

OUT

MAX6399

SHDN

SET

OUT_SET

GND

*EP

3.3V

POK

TDFN

*EXPOSED PAD. CONNECT TO GND.

19-3655; Rev 2; 4/15

12 3 4 5 6 7...10

中文翻译

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与MAX6399相关器件

型号	品牌	获取价格	描述	数据表
MAX6399ATA+T	MAXIM	获取价格	Switching Controller, BICMOS, 3 X 3 MM, 0.80 MM HIEGHT, MO229/WEED-3, TDFN-8
MAX6399ATA-T	MAXIM	获取价格	High-Voltage, Overvoltage/Undervoltage, Protection Switch Controller
MAX639C	MAXIM	获取价格	5V/3.3V/3V/Adjustable, High-Efficiency, Low IQ, Step-Down DC-DC Conver
MAX639C/D	MAXIM	获取价格	5V/3.3V/3V/Adjustable, High-Efficiency, Low IQ, Step-Down DC-DC Converters
MAX639CPA	MAXIM	获取价格	5V/3.3V/3V/Adjustable, High-Efficiency, Low IQ, Step-Down DC-DC Converters
MAX639CSA	MAXIM	获取价格	5V/3.3V/3V/Adjustable, High-Efficiency, Low IQ, Step-Down DC-DC Converters
MAX639CSA+T	MAXIM	获取价格	Switching Regulator, Current-mode, 1A, CMOS, PDSO8, 0.150 INCH, SOIC-8
MAX639CSA-T	MAXIM	获取价格	Switching Regulator, Current-mode, 1A, CMOS, PDSO8, 0.150 INCH, MS-012, SOIC-8
MAX639EPA	MAXIM	获取价格	5V/3.3V/3V/Adjustable, High-Efficiency, Low IQ, Step-Down DC-DC Converters
MAX639EPA	ROCHESTER	获取价格	1A SWITCHING REGULATOR, PDIP8, PLASTIC, DIP-8

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