MAX5947B

更新时间： 2024-11-22 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
15页	269K
描述
Positive High-Voltage, Hot-Swap Controllers

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MAX5947B 数据手册

19-3263; Rev 1; 7/04

Positive High-Voltage, Hot-Swap Controllers

General Description

Features

The MAX5933A–MAX5933F/MAX5947A/B/C fully integrat-

ed hot-swap controllers for +9V to +80V positive supply

rails (MAX5947A/B/C), allow for the safe insertion and

removal of circuit cards into live backplanes without caus-

ing glitches on the backplane power-supply rail. The

MAX5947B is pin- and function-compatible with the

LT1641-2. The other devices offer added features such

as a choice of active-high or active-low power-good out-

puts (PWRGD/PWRGD), latched/autoretry fault manage-

ment, and autoretry duty-cycle options of 3.75% or 0.94%

(see the Selector Guide).

♦ Pin- and Function-Compatible with the LT1641-2

(MAX5947B)

♦ Provides Safe Hot Swap for +9V to +80V Power-

Supply Range (MAX5947A/B/C)

♦ Safe Board Insertion and Removal from Live

Backplanes

♦ Latched/Autoretry Management

♦ Active-Low or Active-High Power-Good Output

♦ Programmable Foldback Current Limiting

♦ High-Side Drive for an External N-Channel MOSFET

♦ Built-In Thermal Shutdown

The MAX5933A–MAX5933F are available with a default

undervoltage lockout threshold of +31V and operate over

a supply voltage range of +33V to +80V. The

MAX5947A/B/C are available with a default undervoltage

of +8.3V. All devices feature a programmable analog

foldback current limit. If the device remains in current limit

for more than a programmable time, the external

n-channel MOSFET is either latched off (MAX5933A/

MAX5933C/MAX5947A) or is set to automatically restart

after a timeout delay (MAX5933B/MAX5933D/MAX5933E/

MAX5933F/MAX5947B/MAX5947C).

♦ Undervoltage Lockout (UVLO)

♦ Overvoltage Protection

♦ User-Programmable Supply Voltage

Power-Up Rate

Ordering Information

The MAX5933_ and MAX5947_ operate in the extended

temperature range of -40°C to +85°C. These devices are

available in an 8-pin SO package.

PART

TEMP RANGE

-40°C to +85°C

PIN-PACKAGE

8 SO

MAX5933_ESA*

MAX5947_ESA*

8 SO

Applications

Hot Board Insertion

*Insert the desired suffix from the Selector Guide into the blank

to complete the part number.

Electronic Circuit Breakers

Industrial High-Side Switch/Circuit Breakers

Network Routers and Switches

Typical Application Circuit and Pin Configuration appear at

end of data sheet.

24V/48V Industrial/Alarm Systems

Selector Guide

LATCHED

FAULT

PROTECTION

AUTORETRY

FAULT

PROTECTION

SUPPLY

VOLTAGE

RANGE (V)

PWRGD

OUTPUT LOGIC

DUTY CYCLE

(%)

DEFAULT UVLO

(V)

PART

MAX5933A

MAX5933B

MAX5933C

MAX5933D

MAX5933E

MAX5933F

MAX5947A

MAX5947B

MAX5947C

Yes

—

High

Low

High

Low

High

Low

—

8.3

33 to 80

9 to 80

Yes

—

3.75

—

Yes

—

Yes

—

3.75

0.94

—

Yes

—

Yes

3.75

9 to 80

—

9 to 80

________________________________________________________________ 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...15

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与MAX5947B相关器件

型号	品牌	获取价格	描述	数据表
MAX5947BESA	MAXIM	获取价格	Positive High-Voltage, Hot-Swap Controllers
MAX5947BESA+	MAXIM	获取价格	Power Supply Support Circuit, Adjustable, 1 Channel, BICMOS, PDSO8, 0.150 INCH, MS012AA, S
MAX5947BESA+T	MAXIM	获取价格	Power Supply Support Circuit, Adjustable, 1 Channel, BICMOS, PDSO8, 0.150 INCH, MS012AA, S
MAX5947BESA-T	MAXIM	获取价格	Power Supply Support Circuit, Adjustable, 1 Channel, BICMOS, PDSO8, 0.150 INCH, MS012AA, S
MAX5947C	MAXIM	获取价格	Positive High-Voltage, Hot-Swap Controllers
MAX5947CESA	MAXIM	获取价格	Positive High-Voltage, Hot-Swap Controllers
MAX5947CESA+	MAXIM	获取价格	Power Supply Support Circuit, Adjustable, 1 Channel, BICMOS, PDSO8, 0.150 INCH, MS012AA, S
MAX5948	MAXIM	获取价格	-48V Hot-Swap Controllers with External RSENSE
MAX5948A	MAXIM	获取价格	-48V Hot-Swap Controllers with External RSENSE
MAX5948A_11	MAXIM	获取价格	-48V Hot-Swap Controllers with External RSENSE

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