MAX5933A MAXIM [Maxim Integrated Products], MAX5933A Datasheet

MAX5933A

Manufacturer Part Number

MAX5933A

Description

Positive High-Voltage, Hot-Swap Controllers

Manufacturer

MAXIM [Maxim Integrated Products]

Datasheet

1.MAX5933A.pdf (15 pages)

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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).

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).

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.

19-3263; Rev 1; 7/04

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.

Hot Board Insertion

Electronic Circuit Breakers

Industrial High-Side Switch/Circuit Breakers

Network Routers and Switches

24V/48V Industrial/Alarm Systems

MAX5933A

MAX5933B

MAX5933C

MAX5933D

MAX5947A

MAX5947B

MAX5947C

MAX5933E

MAX5933F

PART

Positive High-Voltage, Hot-Swap Controllers

________________________________________________________________ Maxim Integrated Products

PROTECTION

LATCHED

FAULT

Yes

General Description

—

PROTECTION

Applications

AUTORETRY

FAULT

Yes

—

OUTPUT LOGIC

PWRGD

High

Low

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

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

♦ Safe Board Insertion and Removal from Live

♦ 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

♦ Undervoltage Lockout (UVLO)

♦ Overvoltage Protection

♦ User-Programmable Supply Voltage

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

to complete the part number.

Typical Application Circuit and Pin Configuration appear at

end of data sheet.

MAX5933_ESA*

MAX5947_ESA*

(MAX5947B)

Supply Range (MAX5947A/B/C)

Backplanes

Power-Up Rate

PART

DUTY CYCLE

3.75

0.94

3.75

(%)

—

Ordering Information

-40°C to +85°C

TEMP RANGE

DEFAULT UVLO

(V)

8.3

Selector Guide

PIN-PACKAGE

8 SO

Features

RANGE (V)

VOLTAGE

SUPPLY

33 to 80

9 to 80

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