MAX5905 datasheet, PDF - EEWORLD Datasheet

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MAX5905: Description2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16; Categorysemiconductor Analog mixed-signal IC; File Size423KB，22 Pages; ManufacturerMaxim; Websitehttps://www.maximintegrated.com/en.html

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MAX5905 Overview

2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16

MAX5905 Parametric

Parameter Name	Attribute value
Number of functions	1
Number of terminals	16
Maximum operating temperature	85 Cel
Minimum operating temperature	0.0 Cel
Maximum supply/operating voltage	13.2 V
Minimum supply/operating voltage	1 V
Rated supply voltage	3.3 V
Processing package description	0.150 INCH, 0.025 INCH PTICH, MO-137AA, QSOP-16
state	ACTIVE
Craftsmanship	BICMOS
packaging shape	Rectangle
Package Size	SMALL OUTLINE, HEAT SINK/SLUG, SHRINK PITCH
surface mount	Yes
Terminal form	GULL WING
Terminal spacing	0.6350 mm
terminal coating	tin lead
Terminal location	pair
Packaging Materials	Plastic/Epoxy
Temperature level	other
Number of channels	2
Adjustable threshold	Yes
Analog IC other types	Power supply support circuit

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19-2238; Rev 2; 11/03

KIT

ATION

EVALU

AVAILA

Low-Voltage, Dual Hot-Swap Controllers/Power

Sequencers

General Description

The MAX5904–MAX5909 dual hot-swap controllers

provide complete protection for dual-supply systems.

These devices hot swap two supplies ranging from +1V

to +13.2V, provided one supply is at or above 2.7V,

allowing the safe insertion and removal of circuit cards

into live backplanes.

The discharged filter capacitors of the circuit card pro-

vide low impedance to the live backplane. High inrush

currents from the backplane to the circuit card can burn

up connectors and components, or momentarily col-

lapse the backplane power supply leading to a system

reset. The MAX5904 family of hot-swap controllers pre-

vents such problems by gradually ramping up the output

voltage and regulating the current to a preset limit when

the board is plugged in, allowing the system to stabilize

safely. After the startup cycle is completed, two on-chip

comparators provide VariableSpeed/BiLevel™ protec-

tion against short-circuit and overcurrent faults, as well

as immunity against system noise and load transients. In

the event of a fault condition, the load is disconnected.

The MAX5905/MAX5907/MAX5909 must be unlatched

after a fault, and the MAX5904/MAX5906/MAX5908 auto-

matically restart after a fault.

The MAX5904 family offers a variety of options to reduce

component count and design time. All devices integrate

an on-board charge pump to drive the gates of low-cost,

external N-channel MOSFETs. The devices offer integrat-

ed features like startup current regulation and current

glitch protection to eliminate external timing resistors and

capacitors. The MAX5906–MAX5909 provide an open-

drain status output, an adjustable startup timer, an

adjustable current limit, an uncommitted comparator,

and output undervoltage/overvoltage monitoring.

The MAX5904/MAX5905 are available in 8-pin SO pack-

ages. The MAX5906–MAX5909 are available in space-

saving 16-pin QSOP packages.

Features

Safe Hot Swap for +1V to +13.2V Power

Supplies

Requires One Input

≥

2.7V

Low 25mV Default Current-Limit Threshold

Inrush Current Regulated at Startup

Circuit Breaker Function

Adjustable Circuit Breaker/Current-Limit

Threshold

VariableSpeed/BiLevel Circuit-Breaker Response

Auto-Retry or Latched Fault Management

On/Off Sequence Programming

Status Output Indicates Fault/Safe Condition

Output Undervoltage and Overvoltage Monitoring

and/or Protection

MAX5904–MAX5909

Ordering Information

PART

MAX5904ESA*

MAX5904USA

MAX5905ESA*

MAX5905USA

MAX5906EEE*

MAX5906UEE

MAX5907EEE*

MAX5907UEE

MAX5908EEE*

MAX5908UEE

MAX5909EEE*

MAX5909UEE

TEMP RANGE

-40°C to +85°C

0°C to +85°C

-40°C to +85°C

0°C to +85°C

-40°C to +85°C

0°C to +85°C

-40°C to +85°C

0°C to +85°C

-40°C to +85°C

0°C to +85°C

-40°C to +85°C

0°C to +85°C

PIN-PACKAGE

8 SO

16 QSOP

*Contact

factory for availability.

Applications

PCI-Express Applications

Basestation Line Cards

Network Switches or Routers

Solid-State Circuit Breaker

Power-Supply Sequencing

Hot Plug-In Daughter Cards

RAID

VariableSpeed/BiLevel is a trademark of Maxim Integrated

Products, Inc.

GATE1

GND

Pin Configurations

TOP VIEW

IN1

SENSE1

IN2

SENSE2

GATE2

MAX5904

MAX5905

NARROW SO

Pin Configurations continued at end of data sheet.

Selector Guide and Typical Operating Circuits appear 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.

MAX5905 Related Products

	MAX5905	MAX5906	MAX5908	MAX5907	MAX5909	MAX5904
Description	2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16	2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16	2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16	2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16	2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16	2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16
Number of functions	1	1	1	1	1	1
Number of terminals	16	16	16	16	16	16
Maximum operating temperature	85 Cel	85 Cel	85 Cel	85 Cel	85 Cel	85 Cel
Minimum operating temperature	0.0 Cel	0.0 Cel	0.0 Cel	0.0 Cel	0.0 Cel	0.0 Cel
Maximum supply/operating voltage	13.2 V	13.2 V	13.2 V	13.2 V	13.2 V	13.2 V
Minimum supply/operating voltage	1 V	1 V	1 V	1 V	1 V	1 V
Rated supply voltage	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V
Processing package description	0.150 INCH, 0.025 INCH PTICH, MO-137AA, QSOP-16	0.150 INCH, 0.025 INCH PTICH, MO-137AA, QSOP-16	0.150 INCH, 0.025 INCH PTICH, MO-137AA, QSOP-16	0.150 INCH, 0.025 INCH PTICH, MO-137AA, QSOP-16	0.150 INCH, 0.025 INCH PTICH, MO-137AA, QSOP-16	0.150 INCH, 0.025 INCH PTICH, MO-137AA, QSOP-16
state	ACTIVE	ACTIVE	ACTIVE	ACTIVE	ACTIVE	ACTIVE
Craftsmanship	BICMOS	BICMOS	BICMOS	BICMOS	BICMOS	BICMOS
packaging shape	Rectangle	Rectangle	Rectangle	Rectangle	Rectangle	Rectangle
Package Size	SMALL OUTLINE, HEAT SINK/SLUG, SHRINK PITCH	SMALL OUTLINE, HEAT SINK/SLUG, SHRINK PITCH	SMALL OUTLINE, HEAT SINK/SLUG, SHRINK PITCH	SMALL OUTLINE, HEAT SINK/SLUG, SHRINK PITCH	SMALL OUTLINE, HEAT SINK/SLUG, SHRINK PITCH	SMALL OUTLINE, HEAT SINK/SLUG, SHRINK PITCH
surface mount	Yes	Yes	Yes	Yes	Yes	Yes
Terminal form	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING
Terminal spacing	0.6350 mm	0.6350 mm	0.6350 mm	0.6350 mm	0.6350 mm	0.6350 mm
terminal coating	tin lead	tin lead	tin lead	tin lead	tin lead	tin lead
Terminal location	pair	pair	pair	pair	pair	pair
Packaging Materials	Plastic/Epoxy	Plastic/Epoxy	Plastic/Epoxy	Plastic/Epoxy	Plastic/Epoxy	Plastic/Epoxy
Temperature level	other	other	other	other	other	other
Number of channels	2	2	2	2	2	2
Adjustable threshold	Yes	Yes	Yes	Yes	Yes	Yes
Analog IC other types	Power supply support circuit	Power supply support circuit	Power supply support circuit	Power supply support circuit	Power supply support circuit	Power supply support circuit

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