Rainbow-electronics MAX6662 Bedienungsanleitung PDF herunterladen

General Description

The MAX6662 is a 12-bit + sign temperature sensor

combined with a programmable overtemperature alarm

and a 3-wire (SPI™-compatible) serial interface in a sin-

gle package. It converts its die temperature into digital

values using an internal analog-to-digital converter

(ADC). The temperature data is stored in a temperature

tion. The temperature data is readable at any time

through the serial interface. The operating temperature

range is -55°C to +150°C.

The MAX6662 provides two programmable watchdog

interrupt outputs. ALERT is used for lower temperature

warning functions, while OT is used for higher tempera-

ture-critical functions, such as power-supply shutdown.

The MAX6662 features a shutdown mode that saves

power by disabling everything except the serial inter-

face. The temperature sensor is available in an 8-pin SO

package.

Applications

HVAC

Refrigeration

Automotive

Test Equipment

Features

♦ 12-Bit + Sign, 0.0625°C Resolution

♦ Accuracy

±1°C max (+30°C to +50°C)

±1.6°C max (0°C to +70°C)

±2.5°C max (-20°C to +85°C)

±2.5 typ (+150°C)

♦ Extended Temperature Measurement Range

-55°C to +150°C

♦ Low Average Supply Current, 125µA (typ)

♦ Shutdown Mode to Minimize Power Consumption

in Portable Applications

♦ Two Programmable Temperature Fault Outputs

♦ Switchable Fault Queue to Eliminate False

Tripping in Noisy Environments

MAX6662

12-Bit + Sign Temperature Sensor with

SPI-Compatible Serial Interface

________________________________________________________________ Maxim Integrated Products 1

ALERT

OTGND

NCCS

SIO

SCLK

TOP VIEW

MAX6662

Pin Configuration

Ordering Information

10kΩ

0.1µF

ALERT

SIO

SCLK

SYSTEM

CONTROLLER

= +3V TO +5.5V

HEAT

SOURCES

MAX6662

Typical Operating Circuit

19-2121; Rev 0; 7/01

PART TEMP. RANGE PIN-PACKAGE

MAX6662MSA -55°C to +150°C 8 SO

SPI is a trademark of Motorola, Inc.

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.

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Inhaltsverzeichnis

Seite 1 - TOP VIEW

General DescriptionThe MAX6662 is a 12-bit + sign temperature sensorcombined with a programmable overtemperature alarmand a 3-wire (SPI™-compatible) s

Seite 2 - ELECTRICAL CHARACTERISTICS

MAX666212-Bit + Sign Temperature Sensor withSPI-Compatible Serial Interface2 _________________________________________________________________________

Seite 3 - VS. TEMPERATURE

MAX666212-Bit + Sign Temperature Sensor withSPI-Compatible Serial Interface___________________________________________________________________________

Seite 4 - Detailed Description

MAX666212-Bit + Sign Temperature Sensor withSPI-Compatible Serial Interface4 _________________________________________________________________________

Seite 5 - Overtemperature Alert

MAX666212-Bit + Sign Temperature Sensor withSPI-Compatible Serial Interface___________________________________________________________________________

Seite 6 - Temperature Fault Queue

MAX666212-Bit + Sign Temperature Sensor withSPI-Compatible Serial Interface6 _________________________________________________________________________

Seite 7 - Temperature Limit Registers

MAX666212-Bit + Sign Temperature Sensor withSPI-Compatible Serial Interface___________________________________________________________________________

Seite 8 - Chip Information

stored in the Temperature register and is in °C, using atwo’s-complement format with 1LSB corresponding to0.0625°C (Table 3). The three least-signific

Seite 9 - Package Information

MAX666212-Bit + Sign Temperature Sensor withSPI-Compatible Serial InterfaceMaxim cannot assume responsibility for use of any circuitry other than circ

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Rainbow-electronics MAX6662 Bedienungsanleitung

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Inhaltsverzeichnis

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