Rainbow-electronics MAX6667 Manual do Utilizador descarregar pdf (Página 6)

MAX6666/MAX6667

1°C. Use Figure 3 to estimate the temperature error

with respect to the MAX6666 packages.

Low-Voltage Logic

Use the MAX6667 open-drain output to drive low-volt-

age devices. As shown in Figure 4, connect a pullup

resistor from the low-voltage logic supply to the

MAX6667 output. Limit the resistor’s current to about

1mA, thus maintaining an output low logic level of less

than 200mV.

Chip Information

TRANSISTOR COUNT: 6479

PROCESS: BiCMOS

High-Accuracy PWM Output Temperature

Sensors

6 _______________________________________________________________________________________

DOUT

(a) (b)

Figure 2. MAX6666/MAX6667 Output Configuration

MAX6667

+3.3V

2.5V

GND

TO LOGIC GATE INPUT

5.1kΩ

DOUT

Figure 4. Low-Voltage Logic

1.0

0.5

2.0

1.5

3.0

2.5

3.5

0462810

MAX6666

TEMPERATURE ERROR vs. LOAD CURRENT

LOAD CURRENT (mA)

TEMPERATURE ERROR (°C)

MAX

SOT23-6

Figure 3. MAX6666 Temperature Error Due to Load Current

ICGND

OUT

MAX6666

MAX6667

SOT23

TOP VIEW

Pin Configurations (continued)

1 2 3 4 5 6 7 8

MAX6666/MAX6667 1

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