MAX6639 datasheet(4/22 Pages) MAXIM

Teilenummer	MAX6639

Bauteilbeschribung	2-Channel Temperature Monitor with Dual, Automatic, PWM Fan-Speed Controller

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Hersteller	MAXIM [Maxim Integrated Products]

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2-Channel Temperature Monitor with Dual,

Automatic, PWM Fan-Speed Controller

4

_______________________________________________________________________________________

Typical Operating Characteristics

(VCC = 3.3V, TA = +25°C.)

STANDBY SUPPLY CURRENT

vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

5.0

4.5

4.0

3.5

1

2

3

4

5

6

7

8

9

10

0

3.0

5.5

OPERATING SUPPLY CURRENT

vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

5.0

4.5

4.0

3.5

300

400

500

600

700

800

200

3.0

5.5

REMOTE TEMPERATURE ERROR

vs. REMOTE-DIODE TEMPERATURE

TEMPERATURE (

°C)

100

75

50

25

-1

0

1

2

-2

0

125

FAIRCHILD 2N3906

LOCAL TEMPERATURE ERROR

vs. DIE TEMPERATURE

TEMPERATURE (

°C)

100

75

50

25

-0.5

-1.0

-1.5

0

0.5

1.0

-2.0

0

125

LOCAL TEMPERATURE ERROR

vs. POWER-SUPPLY NOISE FREQUENCY

FREQUENCY (Hz)

10k

1k

100

-1.5

-1.0

-0.5

0

0.5

1.0

1.5

2.0

-2.0

110

100k

VIN = 250mVP-P SQUARE WAVE APPLIED TO

VCC WITH NO BYPASS CAPACITOR

REMOTE TEMPERATURE ERROR

vs. COMMON-MODE NOISE FREQUENCY

FREQUENCY (Hz)

10k

1k

100

-1.5

-1.0

-0.5

0

0.5

1.0

1.5

2.0

-2.0

0.1

1

10

100k

VIN = AC-COUPLED TO DXP AND DXN

VIN = 100mVP-P SQUARE WAVE

REMOTE TEMPERATURE ERROR

vs. DIFFERENTIAL NOISE FREQUENCY

FREQUENCY (Hz)

10k

1k

100

-1.5

-1.0

-0.5

0

0.5

1.0

1.5

2.0

-2.0

10

100k

VIN = AC-COUPLED TO DXP

VIN = 100mVP-P SQUARE WAVE

TEMPERATURE ERROR

vs. DXP-DXN CAPACITANCE

DXP-DXN CAPACITANCE (nF)

10

1

-5.0

-4.0

-3.0

-2.0

-1.0

0

1.0

2.0

-6.0

0.1

100

REMOTE TEMPERATURE ERROR

vs. POWER-SUPPLY NOISE FREQUENCY

FREQUENCY (Hz)

10k

1k

100

-1.5

-1.0

-0.5

0

0.5

1.0

1.5

2.0

-2.0

10

100k

VIN = 250mVP-P SQUARE WAVE APPLIED TO

VCC WITH NO BYPASS CAPACITOR

Ähnliche Beschreibung - MAX6639

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