Resistor-Programmable

SOT Temperature Switches

________________________________________________________________ Maxim Integrated Products

1

19-1617; Rev 0; 1/00

For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.

For small orders, phone 1-800-835-8769.

________________General Description

The MAX6509/MAX6510 are fully integrated, resistor-

programmable temperature switches with thresholds

set by an external resistor. They require only one exter-

nal resistor to set the temperature threshold within a

wide -40°C to +125°C temperature range. The MAX6509

provides an open-drain output. The MAX6510 features

three selectable output options: active-low, active-high,

and open drain with an internal pull-up resistor.

These switches operate with a +2.7V to +5.5V single

supply while providing a temperature threshold accura-

cy of ±0.5°C (typ) or ±4.0°C (max). They typically con-

sume 32µA supply current. Hysteresis is pin selectable

to 2°C or 10°C.

The MAX6509/MAX6510 are available in 5-pin and 6-pin

SOT23 packages, respectively.

________________________Applications

µP Temperature Monitoring in High-Speed

Computers

Temperature Control

Temperature Alarms

Fan Control

Automotive Applications

____________________________Features

o ±0.5°C Threshold Accuracy

o ±4.0°C (max) Threshold Accuracy (-40°C to +125°C)

o Temperature Threshold Set by a 1% External

Resistor

o Set-Hot or Set-Cold Option

o Low 32µA Supply Current

o Open-Drain, Push-Pull Outputs;

Open-Drain with Internal Pull-Up Resistor

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

o SOT23 Packages

Ordering Information

Pin Configurations

Typical Operating Circuit

Note: A 2500 pc. minimum is required for SOT packages.

*See Table 1 for selectable output options.

GND

OUT

15

SET

MAX6509

SOT23-5

TOP VIEW

2

34

GND

HYST

OUT, OUT

HYST

OUTSET

SET

MAX6510

SOT23-6

2

34

5

GND

( ) ARE FOR MAX6510.

+2.7V TO +5.5V

HYST

GND

(OUTSET)

INT

GND

µP

0.1

µF

SET

OUT

(OUT)

MAX6509

MAX6510

TOP

MARK

ADNT

ADNU

AAHA

AAHB

6 SOT23-6

-40°C to +125°C

MAX6510CAUT-T*

5 SOT23-5

-40°C to +125°C

MAX6509CAUK-T

6 SOT23-6

-40°C to +125°C

MAX6510HAUT-T*

5 SOT23-5

PIN-

PACKAGE

TEMP. RANGE

-40°C to +125°C

MAX6509HAUK-T

PART