MAX6653AEE View Datasheet(PDF) - Maxim Integrated

Part Name

Description

Manufacturer

MAX6653AEE

Temperature Monitors and PWM Fan Controllers

Maxim Integrated 

Temperature Monitors and

PWM Fan Controllers

ABSOLUTE MAXIMUM RATINGS

All Voltages Are Referenced to GND

TACH/AIN ..............................................................-0.3V to +5.5V

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

DXP, ADD, CRIT0, CRIT1........................-0.3V to + (VCC + 0.3V)

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

SMBDATA, SMBCLK, INT, THERM,

FAN_FAULT, SDL, SDR............................................-0.3V to +6V

SMBDATA, INT, THERM, FAN_FAULT,

PWM_OUT Current..............................................-1mA to +50mA

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

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

Continuous Power Dissipation (TA = +70°C)

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

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

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

Storage Temperature Range .............................-65°C to +165°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 = +25°C.) (Note1)

PARAMETER

Operating Supply Voltage Range

Standby Current

Operating Current

Average Operating Current

SYMBOL

CONDITIONS

VCC

SMBDAT = SMBCLK = 1, register 00h = 00h

IS

SMBDAT = SMBCLK = 1

Conversion rate = 4Hz (default)

MIN TYP MAX UNITS

3.0

5.5

V

10

µA

0.5

1

mA

150 300

µA

External Temperature Error

Internal Temperature Error

Temperature Resolution

(Internal and External)

Fan TACHOMETER Accuracy

VCC = +3.3V, TA = 0°C to +100°C,

+60°C ≤ TR ≤ +100°C

VCC = +3.3V, 0°C ≤ TR ≤ +100°C

VCC = +3.3V, -25°C ≤ TR ≤ +125°C

VCC = +3.3V, 0°C ≤ TA ≤ +100°C

VCC = +3.3V, -40°C ≤ TA ≤ +125°C

(Note 2)

0.125

11

±1

°C

±3

±4

±2

°C

±4

°C

Bits

6

%

Fan TACHOMETER Full-Scale

Count

255

TACHOMETER Nominal Input

RPM

Internal Clock Frequency

Divisor = 1, fan count = 153

Divisor = 2, fan count = 153

Divisor = 4, fan count = 153

Divisor = 8, fan count = 153

4400

2200

1100

550

254 270 286

RPM

kHz

TACHOMETER Conversion Cycle

Time

637

ms

2 _______________________________________________________________________________________

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