Rainbow-electronics MAX6677 Manual do Utilizador descarregar pdf (Página 3)

MAX6676/MAX6677

Low-Voltage, 1.8kHz PWM Output Temperature

Sensors

_______________________________________________________________________________________ 3

OUTPUT FREQUENCY

vs. TEMPERATURE

MAX6676 toc01

TEMPERATURE (°C)

OUTPUT FREQUENCY (kHz)

85603510-15

1.5

2.0

2.5

3.0

1.0

-40 110

MAX6676AUT3 OUTPUT FREQUENCY

vs. SUPPLY VOLTAGE

MAX6676 toc02

SUPPLY VOLTAGE (V)

OUTPUT FREQUENCY (Hz)

3.33.02.72.42.1

1.75

2.00

2.25

2.50

1.50

1.8 3.6

TEMP = +125°C

TEMP = +25°C

TEMP = -40°C

AND t

TIMES

vs. TEMPERATURE

MAX6676 toc03

TEMPERATURE (°C)

TIME (µs)

85603510-15

250

300

350

450

200

-40 110

400

MAX6676AUT3 SUPPLY CURRENT

vs. TEMPERATURE

MAX6676 toc05

TEMPERATURE (°C)

SUPPLY CURRENT (µA)

85603510-15

100

200

300

400

500

600

-40 110

= 3.6V

= 3.0V

= 1.8V

5.1kΩ PULLUP RESISTOR

MAX6676AUT3 SUPPLY CURRENT

vs. SUPPLY VOLTAGE

MAX6676 toc06

SUPPLY VOLTAGE (V)

SUPPLY CURRENT (µA)

3.33.02.72.42.1

100

150

200

250

300

350

400

450

1.8 3.6

5.1kΩ PULLUP

NO PULLUP

POWER-SUPPLY REJECTION RATIO

vs. TEMPERATURE

MAX6676 toc07

TEMPERATURE (°C)

PSRR (°C/V)

100 1257550250-25

-0.5

1.0

-1.0

-50

0.5

POWER-SUPPLY REJECTION RATIO

vs. FREQUENCY

MAX6676 toc08

FREQUENCY (Hz)

CHANGE IN TEMPERATURE (°C)

10010

-4

-2

-6

1 10k

= 100mV

P-P

-1

-3

-5

Typical Operating Characteristics

= 3.0V, T

= +25°C, unless otherwise noted.)

MAX6676 toc09

OUT

10ns/div

OUTPUT FALL TIME

= 100pF, R

= 100kΩ)

OUTPUT ACCURACY

vs. TEMPERATURE

MAX6676 toc04

TEMPERATURE (°C)

OUTPUT ACCURACY (°C)

85603510-15

-3

-1

-5

-40

110

1 2 3 4 5 6

MAX6676/MAX6677 1

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