MAX5976BEVKIT+【PDF 1/9 页】EVAL KIT MAX5976B

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Sheet目录1228

[1页]2页 3页 4页 5页

19-5542; Rev 1; 4/11

EVALUA

TION KIT

AVA ILABLE

2.7V to 18V, 7A, Hot-Swap Solution

General Description

The MAX5976A/MAX5976B are integrated solutions for

hot-swap applications requiring the safe insertion and

removal of circuit line cards from a live backplane. The

devices integrate a hot-swap controller, 24m I power

MOSFET, and electronic circuit-breaker protection in a

single package. The ICs are designed for protection of

2.7V to 18V supply voltages.

The devices provide inrush current control and short-

circuit detection during startup. During normal operation,

the devices provide circuit-breaker protection against

overload and short-circuit conditions. The circuit-breaker

function disconnects the power to the load if the load

current exceeds the circuit-breaker limit. The devices

are factory-calibrated to deliver accurate overcurrent

protection with Q 10% accuracy. During a fault condi-

tion, the MAX5976A enters an autoretry mode while the

MAX5976B latches off. Both versions feature a resistor-

adjustable variable speed circuit-breaker threshold and

overtemperature protection. Additional features include

power-good and fault indicator outputs.

Features

S 2.7V to 18V Operating Voltage Range

S 24m I Internal Power MOSFET

S 7A Load Current Capability

S No Sense Resistor Required

S ±10% Circuit-Breaker Threshold Accuracy

S Adjustable Circuit-Breaker Current

S Variable Speed Circuit-Breaker Response

S Thermal Protection

S Power-Good and Fault Outputs

S Latch-Off or Automatic Retry Options

S Drive-Present Signal Input

S Active-Low and Active-High Enables

Ordering Information

The ICs are available in a 16-pin, 5mm x 5mm, TQFN-

EP package and fully specified over the -40 ° C to +85 ° C

operating temperature range.

PART

MAX5976A ETE+

PIN PACKAGE

16 TQFN-EP*

FAULT

MANAGEMENT

Autoretry

RAID Systems

Storage Bridge Bay

Disk Drive Power

Applications

MAX5976B ETE+ 16 TQFN-EP* Latched Off

Note: All devices are specified over the -40°C to +85°C

operating temperature range.

+ Denotes a lead(Pb)-free/RoHS-compliant package.

* EP = Exposed pad.

Server I/O Cards

Industrial

Typical Application Circuit

2.7V TO 18V

REMOVABLE CARD

OUT

LOAD

C IN

T VS

PRESDET

V PRESDET

V IN

(7A)

ON1

MAX5976A

MAX5976B

R CB

ON2

R ON2

C REG

REG

GND

FAULT

μP

R PG

R FAULT

2.7V TO 6V

_______________________________________________________________ Maxim Integrated Products 1

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

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