General Description

The MAX6516–MAX6519 low-cost, fully integrated tem-

perature switches assert a logic signal when their die

temperature crosses a factory-programmed threshold.

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

feature a fixed voltage reference, an analog tempera-

ture sensor, and a comparator. They are available with

factory-trimmed temperature trip thresholds from -45°C

to +115°C in 10°C increments, and are accurate to

±0.5°C (typ). These devices require no external compo-

nents and typically consume 22µA of supply current.

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

The MAX6516–MAX6519 are offered with hot-tempera-

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

temperature is above the threshold, or with cold-tem-

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

the temperature is below the threshold.

These devices provide an analog output proportional to

temperature and are stable with any capacitive load up

to 1000pF. The MAX6516–MAX6519 can be used over a

range of -35°C to +125°C 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 MAX6516 and MAX6518 have an active-high,

push-pull output. The MAX6517 and MAX6519 have an

active-low, open-drain output. These devices are avail-

able in a space-saving 5-pin SOT23 package and oper-

ate over the -55°C to +125°C temperature range.

Applications

Features

♦ 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

♦ Analog Output to Allow Board-Level Testing

♦ Open-Drain or Push-Pull Outputs

♦ Pin-Selectable 2°C or 10°C Hysteresis

Low-Cost, 2.7V to 5.5V, Analog Temperature

Sensor Switches in a SOT23

________________________________________________________________

Maxim Integrated Products

1

Ordering Information

MAX6517

GND

MICROCONTROLLER

INT

ADC IN

GND

HYST

OUT

TOVER

0.1

μF

100k

Ω

Typical Operating Circuit

19-3007; Rev 1; 2/11

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.

PART

TEMP RANGE

PIN-PACKAGE

MAX6516UK_ _ _ _+T

-55°C to +125°C

5 SOT23

MAX6517UK_ _ _ _+T

-55°C to +125°C

5 SOT23

MAX6518UK_ _ _ _+T

-55°C to +125°C

5 SOT23

MAX6519UK_ _ _ _+T

-55°C to +125°C

5 SOT23

GND

HYST

15

OUT

(MAX6516)

MAX6517

SOT23

TOP VIEW

2

34

(TOVER)

TOVER

GND

HYST

15

OUT

(MAX6516)

MAX6517

SOT23

2

34

(TUNDER)

TUNDER

GND

OUT

15

HYST

(MAX6518)

MAX6519

SOT23

2

34

(TOVER)

TOVER

GND

OUT

15

HYST

(MAX6518)

MAX6519

SOT23

2

34

(TUNDER)

TUNDER

Pin Configurations

Fan Control

Test Equipment

Temperature Control

Temperature Alarms

Over/Undertemperature

Protection

Notebook, Desktop PCs

RAID

Servers

Note: These parts are offered in 16 standard temperature ver-

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

suffix information, add P or N for positive or negative trip tem-

perature, and select an available trip point in degrees centi-

grade. For example, the MAX6516UKP065+T describes a

MAX6516 in a 5-pin SOT23 package with a +65°C threshold.

Contact the factory for pricing and availability.

+

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

T = Tape and reel.

Functional Diagram appears at end of data sheet.