Rainbow-electronics MAX6512 User Manual download pdf

General Description

The MAX6511/MAX6512/MAX6513 are fully integrated,

remote temperature switches that use an external P-N

junction (typically a diode-connected transistor) as the

sensing element to measure the remote temperature.

These devices assert a logic signal when the tempera-

ture crosses a factory-programmed threshold. Available

trip thresholds are from +45°C to +125°C in 10°C incre-

ments. Accuracy is within ±3°C (T

= -5°C to +55°C) or

±5°C (T

= -40°C to +85°C). Hysteresis is pin selec-

table to 5°C or 10°C.

The MAX6511 has an active-low CMOS output and the

MAX6513 has an active-high CMOS output. The

MAX6512 has an open-drain output. The output is

asserted when the temperature exceeds the threshold

value. The active-low open-drain output is intended to

interface with a microprocessor (µP) reset or interrupt

input. The active-high CMOS output can directly drive a

power FET to control a cooling fan.

The MAX6511/MAX6512/MAX6513 operate from a

+3.0V to +5.5V supply and typically consume 400µA of

supply current. They are available in a small 6-pin

SOT23 package.

________________________Applications

CPU Temperature Monitoring in High-Speed

Computers

Multichip Modules

Battery Packs

Temperature Control

Temperature Alarms

Fan Control

Features

♦ Continuously Measure External Junction

Temperature

♦ Factory-Programmed Temperature Threshold

from +45°C to +125°C in 10°C Increments

♦ Insensitive to Series Parasitic Resistance

♦ Active-Low CMOS Output (MAX6511) or Open-

Drain Output for Overtemperature Alarm

(MAX6512) or Active-High Output (MAX6513) for

Direct Fan Control

♦ <100ms Response Time

♦ Accuracy

±3°C (T

REMOTE =

+45°C to +125°C, T

= -5°C to +55°C)

±5°C (T

REMOTE =

+45°C to +125°C, T

= -40°C to +85°C)

♦ Pin-Selectable 5°C or 10°C Hysteresis

♦ 400µA Average Current Consumption

♦ +3.0V to +5.5V Supply Range

♦ 6-Pin SOT23 Package

MAX6511/MAX6512/MAX6513

Low-Cost, Remote SOT Temperature Switches

________________________________________________________________ Maxim Integrated Products 1

GND

TOVER (TOVER)HYST

16DXP

5 DXN

MAX6511

MAX6512

MAX6513

TOP VIEW

( ) ARE FOR MAX6513 SOT23 ONLY.

Pin Configuration

19-1819; Rev 0; 10/00

For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,

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

Ordering Information

*These parts are offered in nine standard temperature versions

with a minimum order of 2500 pieces. To complete the suffix infor-

mation, select an available trip point in degrees centigrade from

the device marking codes table. For example, the

MAX6511UT065-T describes a MAX6511 in a SOT23-6 package

with a +65°C threshold.

PART* TEMP. RANGE

PIN-

PACKAGE

OUTPUT

M AX6 511EUT_ _ _ -T -40°C to +85°C 6 SOT23-6

CMOS

(Active-Low)

M AX6 512EUT_ _ _ -T -40°C to +85°C 6 SOT23-6 Open-Drain

M AX6 513EUT_ _ _ -T -40°C to +85°C 6 SOT23-6

CMOS

(Active-High)

Typical Operating Circuit appears at end of data sheet.

1 2 3 4 5 6 7

MAX6511/MAX6512/MAX6513 1

Summary of Contents

Page 1 - MAX6511/MAX6512/MAX6513

General DescriptionThe MAX6511/MAX6512/MAX6513 are fully integrated,remote temperature switches that use an external P-Njunction (typically a diode-co

Page 2

MAX6511/MAX6512/MAX6513Low-Cost, Remote SOT Temperature Switches2 ____________________________________________________________________________________

Page 3

MAX6511/MAX6512/MAX6513Low-Cost, Remote SOT Temperature Switches______________________________________________________________________________________

Page 4

Detailed DescriptionThe MAX6511/MAX6512/MAX6513 fully integrated tem-perature switches incorporate a precision bandgap ref-erence, a conversion block,

Page 5

Hysteresis InputThe HYST pin is a CMOS-compatible input that selectshysteresis at either a high level (10°C for HYST = VDD)or a low level (5°C for HYS

Page 6

MAX6511/MAX6512/MAX6513Low-Cost, Remote SOT Temperature Switches6 ____________________________________________________________________________________

Page 7

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

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