Rainbow-electronics MAX16068 Manual do Utilizador descarregar pdf (Página 1)

_______________________________________________________________ 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.

MAX16068

6-Channel, Flash-Configurable System Manager

with Nonvolatile Fault Registers

19-5040; Rev 0; 10/09

Note: This device is specified over the -40NC to +85NC extended temperature range.

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

*EP = Exposed pad.

Ordering Information/Selector Guide

General Description

The MAX16068 flash-configurable system manager

monitors and manages up to six system voltages

simultaneously. The MAX16068 integrates an analog-

to-digital converter (ADC). Device configuration infor-

mation, including overvoltage and undervoltage limits,

time delay settings is stored in nonvolatile flash memory.

During a fault condition, fault flags and channel volt-

ages can be automatically stored in the nonvolatile flash

memory for later readback.

The internal 1% accurate, 10-bit ADC measures each

input and compares the result to one overvoltage and

one undervoltage limit. A fault signal asserts when a

monitored voltage falls outside the set limits.

The MAX16068 supports a power-supply voltage of up to

14V and can be powered directly from the 12V interme-

diate bus in many systems.

The MAX16068 includes six programmable general-

purpose inputs/outputs (GPIOs). GPIOs are flash con-

figurable as a fault output, as a watchdog input or output,

or as a manual reset.

The MAX16068 features nonvolatile fault memory for

recording information during system shutdown events.

The fault logger records a failure in the internal flash

and sets a lock bit protecting the stored fault data from

accidental erasure.

An SMBus™ or a JTAG serial interface configures the

MAX16068. The MAX16068 is available in a 28-pin, 5mm

x 5mm, TQFN package and is fully specified over the

-40NC to +85NC extended temperature range.

Features

S Operates from 2.8V to 14V

S 1% Accurate, 10-Bit ADC Monitors 6 Voltage

Inputs

S Analog EN Monitoring Input

S 6 Monitored Inputs with Overvoltage and

Undervoltage Limits

S Nonvolatile Fault Event Logger

S Six General-Purpose Inputs/Outputs Configurable

as:

Dedicated Fault Output

Watchdog Timer Function

Manual Reset

SMBus Alert

Fault Propagation Input/Output

S SMBus and JTAG Interface

S Supports Cascading with MAX16065/MAX16066

S Flash-Configurable Time Delays and Thresholds

S -40NC to +85NC Extended Operating Temperature

Range

Applications

Networking Equipment

Telecom Equipment (Base Stations, Access)

Storage/Raid Systems

Servers

Typical Operating Circuit appears at end of data sheet.

SMBus is a trademark of Intel Corp.

PART PIN-PACKAGE VOLTAGE-DETECTOR INPUTS

GENERAL-PURPOSE INPUTS/

OUTPUTS

MAX16068ETI+ 28 TQFN-EP* 6 6

1 2 3 4 5 6 ... 39 40

MAX16068 1

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_______________________________________________________________ Maxim Integrated Products 1For pricing, delivery, and ordering information, pleas

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Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are

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