Rainbow-electronics MAX6673 Manual de usuario descargar pdf (Pagina 3)

MAX6672/MAX6673

PWM Output Temperature Sensors

in SC70 Packages

_______________________________________________________________________________________ 3

Typical Operating Characteristics

= 3.3V, T

= +25°C, unless otherwise noted.)

1.00

1.25

1.50

1.75

2.00

OUTPUT FREQUENCY vs. TEMPERATURE

MAX6672 toc01

TEMPERATURE (°C)

FREQUENCY (kHz)

-50 25 50-25 0 75 100 125

1.010

1.005

1.000

0.995

0.990

2.0 3.52.5 3.0 4.0 4.5 5.0

NORMALIZED OUTPUT FREQUENCY

vs. SUPPLY VOLTAGE

MAX6672 toc02

SUPPLY VOLTAGE (V)

NORMALIZED FREQUENCY (kHz)

= +125°C

= +25°C

= -40°C

200

300

400

500

600

AND t

TIMES vs. TEMPERATURE

MAX6672 toc03

TEMPERATURE (°C)

AND t

TIMES (µs)

-50 25 50-25 0 75 100 125

-4

-2

OUTPUT ACCURACY vs. TEMPERATURE

MAX6672 toc04

TEMPERATURE (°C)

ACCURACY (°C)

-50 25 50-25 0 75 100 125

= 3.3V

120

150

-50 0-25 25 50 75 100 125

SUPPLY CURRENT vs. TEMPERATURE

MAX6672 toc05

TEMPERATURE (°C)

SUPPLY CURRENT (µA)

= 3.3V

= 5V

100

2.0 3.02.5 3.5 4.0 4.5 5.0

SUPPLY CURRENT vs. SUPPLY VOLTAGE

MAX6672 toc06

SUPPLY VOLTAGE (V)

SUPPLY CURRENT (µA)

-1.0

-0.5

0.5

1.0

POWER-SUPPLY REJECTION

vs. TEMPERATURE

MAX6672 toc07

TEMPERATURE (°C)

POWER-SUPPLY REJECTION (°C/V)

-50 25 50-25 0 75 100 125

POWER-SUPPLY REJECTION

vs. FREQUENCY

MAX6672 toc08

FREQUENCY (Hz)

POWER-SUPPLY REJECTION (°C/V)

1.0

-1.0

0.5

-0.5

0.01 10 100 1k0.10 1 10k

= 100mV

P-P

120

150

OUTPUT RISE AND FALL TIMES

vs. CAPACITIVE LOAD

MAX6672 toc09

CAPACITIVE LOAD (nF)

OUTPUT RISE AND FALL TIMES (ns)

0.01 10.10 10

FALL TIME

MAX6673 RISE TIME

1 2 3 4 5 6

MAX6672/MAX6673 1

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Rainbow-electronics MAX6673 Manual de usuario Pagina 3

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