Rainbow-electronics MAX6645 Manuale Utente Scaricare il pdf (Pagina 10)

MAX6643/MAX6644/MAX6645

Automatic PWM Fan-Speed Controllers with

Overtemperature Output

10 ______________________________________________________________________________________

TO FANFAIL

ALARM

MAX6645

10

N

9

8

TACHOMETER

MODE

TACHOMETER

MODE

TO OVERTEMPERATURE ALARM

7

6

FANFAIL

TACHSET

DXP2

GND

DXP1

V

DD

V

DD

(+3.0V TO +5.5V)

+V

FAN

(5V OR 12V)

1

2

3

4

5

PWM_OUT

FAN_IN1

FAN_IN2

OT

4.7kΩ

4.7kΩ

4.7kΩ

Figure 5. Using the MAX6645 to Monitor Two Fans

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 16 17

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