MAX5948B

更新时间： 2024-10-13 22:55:19

品牌	Logo	应用领域
美信 - MAXIM		控制器
页数	文件大小	规格书
18页	684K
描述
-48V Hot-Swap Controllers with External RSENSE

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MAX5948B 数据手册

19-3473; Rev 0; 10/04

-48V Hot-Swap Controllers

with External R

SENSE

General Description

Features

The MAX5948A/MAX5948B are hot-swap controllers

that allow a circuit card to be safely hot plugged into a

live backplane. The MAX5948A/MAX5948B operate

from -20V to -80V and are well-suited for -48V power

systems. The MAX5948A is pin- and function-compati-

ble with both the LT1640AL and LT1640L. The

MAX5948B is pin- and function-compatible with both

the LT1640AH and LT1640H.

♦ Allow Safe Board Insertion and Removal from a

Live -48V Backplane

♦ Pin- and Function-Compatible with

LT1640AL/LT1640L (MAX5948A)

♦ Pin- and Function-Compatible with

LT1640AH/LT1640H (MAX5948B)

♦ Withstand -100V Input Transients with No

The MAX5948A/MAX5948B provide a controlled turn-on

to circuit cards preventing glitches on the power-supply

rail and damage to board connectors and components.

The MAX5948A/MAX5948B provide undervoltage, over-

voltage, and overcurrent protection. These devices

ensure the input voltage is stable and within tolerance

before applying power to the load.

External Components

♦ Operate from -20V to -80V

♦ Programmable Inrush and Short-Circuit Current

Limits

♦ Programmable Overvoltage Protection

♦ Programmable Undervoltage Lockout

♦ Power Up into a Shorted Load

Both the MAX5948A and MAX5948B protect a system

against overcurrent and short-circuit conditions by turning

off the external MOSFET in the event of a fault condition.

Both devices feature an open-drain power-good status

output, PWRGD for MAX5948A or PWRGD for

MAX5948B, that can be used to enable downstream

converters.

♦ Power-Good Control Output

Ordering Information

The MAX5948A/MAX5948B are available in an 8-pin SO

package. Both devices are specified for the extended

-40°C to +85°C temperature range.

PART

TEMP RANGE

-40°C to +85°C

PIN-PACKAGE

8 SO

MAX5948AESA

MAX5948BESA

8 SO

Applications

Selector Guide

Central-Office Switching

Network Switches/Routers

Server Line Cards

PART

PWRGD POLARITY

Active Low (PWRGD)

Active High (PWRGD)

MAX5948AESA

Base-Station Line Cards

MAX5948BESA

Pin Configuration

TOP VIEW

PWRGD

(PWRGD)

DRAIN

GATE

MAX5948A

MAX5948B

SENSE

( ) FOR MAX5948B.

Typical Operating Circuit appears 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...18

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与MAX5948B相关器件

型号	品牌	获取价格	描述	数据表
MAX5948BESA	MAXIM	获取价格	-48V Hot-Swap Controllers with External RSENSE
MAX5948BESA+	MAXIM	获取价格	-48V Hot-Swap Controllers with External RSENSE
MAX5948BESA+T	MAXIM	获取价格	Power Supply Support Circuit, Adjustable, 1 Channel, BICMOS, PDSO8, 0.150 INCH, MS-012AA,
MAX5948BESA-T	MAXIM	获取价格	Power Supply Support Circuit, Adjustable, 1 Channel, BICMOS, PDSO8, 0.150 INCH, MS-012AA,
MAX5949	MAXIM	获取价格	-48V Hot-Swap Controllers with External RSENSE
MAX5949	ADI	获取价格	-48V热插拔控制器，外置RSENSE
MAX5949A	MAXIM	获取价格	-48V Hot-Swap Controllers with External RSENSE
MAX5949A_11	MAXIM	获取价格	-48V Hot-Swap Controllers with External RSENSE
MAX5949AESA	MAXIM	获取价格	-48V Hot-Swap Controllers with External RSENSE
MAX5949AESA+	MAXIM	获取价格	-48V Hot-Swap Controllers with External RSENSE

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