MAX6514 MAXIM [Maxim Integrated Products], MAX6514 Datasheet

MAX6514

Manufacturer Part Number

MAX6514

Description

Low-Cost, 2.7V to 5.5V Temperature Switches in a SOT23

Manufacturer

MAXIM [Maxim Integrated Products]

Datasheet

1.MAX6514.pdf (8 pages)

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The MAX6514/MAX6515 low-cost, fully integrated temper-

ature switches assert a logic signal when their die tem-

perature crosses a factory-programmed threshold.

Operating from a 2.7V to 5.5V supply, these devices fea-

ture a fixed voltage reference, an analog temperature

sensor, and a comparator. They are available with facto-

ry-trimmed temperature trip thresholds from -45°C to

+15°C and +35°C to +115°C in 10°C increments, and are

accurate to ±1°C (typ). These devices require no external

components and typically consume 22µA of supply cur-

rent. Hysteresis is pin selectable at 2°C or 10°C.

The MAX6514/MAX6515 are offered with hot-tempera-

ture thresholds (+35°C to +115°C), asserting when the

temperature is above the threshold or with cold-temper-

ature thresholds (-45°C to +15°C), asserting when the

temperature is below the threshold. The MAX6514/

MAX6515 can be used over a -35°C to +125°C range

with a supply voltage of 2.7V to 5.5V. For applications

sensing temperature down to -45°C, a supply voltage

above 4.5V is required.

The MAX6514 has an active-high, push-pull output. The

MAX6515 has an active-low, open-drain output. These

devices are available in a space-saving 5-pin SOT23

package and operate over the -55°C to +125°C tem-

perature range.

19-3147; Rev 0; 1/04

Pin Configurations and Functional Diagram appear at end of

data sheet.

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.

Low-Cost, 2.7V to 5.5V Temperature Switches

Over/Undertemperature Protection

Fan Control

Test Equipment

Temperature Control

Temperature Alarms

Notebook, Desktop PCs

RAID

Servers

________________________________________________________________ Maxim Integrated Products

General Description

Applications

*These parts are offered in 16 standard temperature versions

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

information, add P or N for positive or negative trip temperature,

and select an available trip point in degrees centigrade. For

example, the MAX6514UKP065-T describes a MAX6514 in a

5-pin SOT23 package with a +65°C threshold in tape and reel

(2.5k minimum order). Contact the factory for pricing and avail-

ability.

MAX6514UK_ _ _ _-T*

MAX6515UK_ _ _ _-T*

0.1µF

High-Accuracy +1.5°C (max) over -15°C to +65°C

Temperature Range

Low-Power Consumption: 22µA Typical Current

Factory-Programmed Thresholds from -45°C to

+115°C in 10°C Increments

Open-Drain or Push-Pull Outputs

Pin-Selectable 2°C or 10°C Hysteresis

Low Cost

PART

GND

Typical Operating Circuit

MAX6515

GND

HYST

TOVER

Ordering Information

-55°C to +125°C

TEMP RANGE

in a SOT23

100kΩ

INT

MICROCONTROLLER

Features

PIN-

PACKAGE

5 SOT23-5

GND

Related parts for MAX6514

MAX6514 Summary of contents

Page 1

... To complete the suffix information, add for positive or negative trip temperature, and select an available trip point in degrees centigrade. For example, the MAX6514UKP065-T describes a MAX6514 in a Applications 5-pin SOT23 package with a +65°C threshold in tape and reel (2 ...

Page 2

... Note 1: 100% production tested +25°C. Specifications over temperature are guaranteed by design. A Note 2: The MAX6514/MAX6515 are available with internal factory-programmed temperature trip thresholds from -45°C to +15°C and +35°C to +115°C in 10°C increments. Note 3: V must be greater than 4.5V for a switching threshold of -45°C. ...

Page 3

... TOVER (2V/div SOT23 SUPPLY CURRENT vs. TEMPERATURE -55 -35 - 105 125 TEMPERATURE (°C) TOVER/TUNDER OUTPUT VOLTAGE LOW vs. SINK CURRENT (mA) SINK STARTUP DELAY (TEMP > MAX6514 toc06 V CC (2V/div) TOVER (2V/div) TIME = 100µs 3 ...

Page 4

... Pin-selectable 2°C or 10°C hysteresis keeps the digital output from oscil- lating when the die temperature approaches the threshold temperature. The MAX6514 has an active- high, push-pull output structure that can sink or source current. The MAX6515 has an active-low, open-drain output structure that can only sink current ...

Page 5

... The first temperature monitor activates the fan when the die temperature exceeds +45°C. The second MAX6514 triggers a system shutdown if the die temper- ature reaches +75°C, preventing damage from a wide variety of destructive fault conditions, including latchups, short circuits, and cooling-system failures ...

Page 6

... Low-Cost, 2.7V to 5.5V Temperature Switches in a SOT23 Table 1. Top Marks PART MAX6514UKN005 MAX6514UKN015 MAX6514UKN025 MAX6514UKN035 MAX6514UKN045 MAX6514UKP005 MAX6514UKP015 MAX6514UKP035 MAX6514UKP045 MAX6514UKP055 MAX6514UKP065 MAX6514UKP075 MAX6514UKP085 MAX6514UKP095 MAX6514UKP105 MAX6514UKP115 TOP VIEW HOT THRESHOLDS (+35°C TO +115°C) GND 1 (MAX6514) 2 GND MAX6515 HYST 3 SOT23 6 _______________________________________________________________________________________ PART TOP MARK ...

Page 7

... V MAX6514 (HOT THRESHOLD) TOVER TOVER HYST COLD +25°C MAX6515 (HOT THRESHOLD) V TOVER WITH 100kΩ PULLUP TOVER HYST COLD +25°C V MAX6514 (COLD THRESHOLD) TUNDER TUNDER HYST COLD T TH MAX6515 (COLD THRESHOLD) V TUNDER WITH 100kΩ PULLUP TUNDER HYST COLD T TH TRANSISTOR COUNT: 1808 ...

Page 8

Low-Cost, 2.7V to 5.5V Temperature Switches in a SOT23 (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.) Maxim cannot assume responsibility for use of any ...

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