MAX6639(2005) Ver la hoja de datos (PDF) - Maxim Integrated

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MAX6639
(Rev.:2005)

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

Maxim Integrated 

2-Channel Temperature Monitor with Dual,

Automatic, PWM Fan-Speed Controller

ABSOLUTE MAXIMUM RATINGS

VCC to GND ..............................................................-0.3V to +6V

PWM1, PWM2, TACH1, and TACH2 to GND ......-0.3V to +13.5V

DXP1 and DXP2 to GND ..........................-0.3V to +(VCC + 0.3V)

DXN to GND ..........................................................-0.3V to +0.8V

SCL, SDA, THERM, OT, FANFAIL, ADD,

and ALERT to GND ..............................................-0.3V to +6V

SDA, OT, THERM, ALERT, FANFAIL,

PWM1, and PWM2 Current .............................-1mA to +50mA

DXN Current .......................................................................±1mA

ESD Protection (all pins, Human Body Model) ..................2000V

Continuous Power Dissipation (TA = +70°C)

16-Pin QSOP (derated 8.3mW/°C above +70°C) ....... 667mW

16-Pin TQFN 5mm x 5mm

(derated at 33.3mW/°C above +70°C)................2666.7mW

Operating Temperature Range .........................-40°C to +125°C

Junction Temperature ......................................................+150°C

Storage Temperature Range ............................-65°C to +150°C

Lead Temperature (soldering, 10s) .................................+300°C

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

ELECTRICAL CHARACTERISTICS

(VCC = +3.0V to +5.5V, TA = 0°C to +125°C, unless otherwise noted. Typical values are at VCC = +3.3V, TA = +85°C.) (Note 1)

PARAMETER

Operating Supply Voltage Range

Standby Current

Operating Current

External Temperature Error

Internal Temperature Error

Supply Sensitivity of Temperature

Measurement

SYMBOL

VCC

CONDITIONS

SMB static, sleep mode

Interface inactive, ADC active

VCC = +3.3V, +60°C ≤ TA ≤ +100°C and

+60°C ≤ TR ≤ +100°C

VCC = +3.3V, +40°C ≤ TA ≤ +100°C and

0°C ≤ TR ≤ +145°C

VCC = +3.3V, 0°C ≤ TR ≤ +145°C

VCC = +3.3V, +25°C ≤ TA ≤ +100°C

VCC = +3.3V, 0°C ≤ TA ≤ +125°C

Temperature Resolution

Conversion Time

Conversion-Rate Timing Error

PWM Frequency Error

Tachometer Accuracy

Remote-Diode Sourcing Current

DXN Source Voltage

VCC = 3.0V to 3.63V, TA = +60°C to +100°C

High level

Low level

MIN

+3.0

-10

-10

70

7.0

TYP MAX

+5.5

3

10

0.5

1

±1

±2.5

±3.8

±2

±4

±0.2

+0.125

11

125

+10

+10

±3

100

130

10

13.0

0.7

UNITS

V

µA

mA

°C

°C

°C/V

°C

Bits

ms

%

%

%

µA

V

2 _______________________________________________________________________________________

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