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Absolute maximum ratings, Electrical characteristics – Rainbow Electronics MAX6616 User Manual

Page 2

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MAX6615/MAX6616

Dual-Channel Temperature Monitors and
Fan-Speed Controllers with Thermistor Inputs

2

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

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.

All Voltages Are Referenced to GND
Supply Voltage (V

CC

) ...............................................-0.3V to +6V

PWM_, TACH_, OT, FAN_FAIL ............................-0.3V to +13.5V
ADD0, ADD1, SDA, SCL ..........................................-0.3V to +6V
All Other Pins..............................................-0.3V to (V

CC

+ 0.3V)

SDA, OT, FAN_FAIL, PWM_, GPIO_ Current....................±50mA
TH_ Current ........................................................................±1mA
REF Current ......................................................................±20mA

Continuous Power Dissipation (T

A

= +70°C)

16-Pin QSOP (derated at 8.3mW/°C
above +70°C)............................................................666.7mW
24-Pin QSOP (derated at 9.5mW/°C
above +70°C)...........................................................761.9 mW

ESD Protection (all pins, Human Body Model) ....................±2kV
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

ELECTRICAL CHARACTERISTICS

(V

CC

= +3.0V to +5.5V, T

A

= 0°C to +125°C, unless otherwise noted. Typical values are at V

CC

= +3.3V, T

A

= +25°C.)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Operating Supply Voltage

V

CC

3.0

5.5

V

Standby Current

Interface inactive, ADC in idle state

10

µA

Operating Current

I

S

Interface inactive, ADC active

0.5

1

mA

External Temperature Error

V

CC

= +3.3V, 0.15V

≤ V

TH_

≤ +0.71V (excludes

thermistor errors, thermistor nonlinearity) (Note1)

±1

°C

V

CC

= +3.3V, 0°C

≤ T

A

≤ +85°C,

±2.5

Internal Temperature Error

V

CC

= +3.3V, 0°C

≤ T

A

≤ +125°C

±4

°C

Temperature Resolution

0.125

°C

Conversion Time

250

ms

Conversion Rate Timing Error

-20

+20

%

PWM Frequency Error

-20

+20

%

INPUT/OUTPUT

Output Low Voltage

V

OL

V

CC

= +3V, I

OUT

= 6mA

0.4

V

Output High Leakage Current

I

OH

1

µA

Logic Low Input Voltage

V

IL

0.8

V

Logic High Input Voltage

V

IH

2.1

V

Input Leakage Current

1

µA

Input Capacitance

C

IN

5

pF

SMBus TIMING (Figures 2, 3) (Note 2)

Serial Clock Frequency

f

SCLK

10

400

kHz

Clock Low Period

t

LOW

10% to 10%

4

µs

Clock High Period

t

HIGH

90% to 90%

4.7

µs

Bus Free Time Between STOP
and START Conditions

t

BUF

4.7

µs

SMBus START Condition
Setup Time

t

SU:STA

90% of SCL to 90% of SDA

4.7

µs