Rainbow-electronics MAX6645 Manual do Utilizador descarregar pdf (Página 11)

MAX6643/MAX6644/MAX6645

Automatic PWM Fan-Speed Controllers with

Overtemperature Output

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MAX6643_A_

TH1

(TACHOMETER MODE)

TO OVERTEMPERATURE ALARM

TL2

TL1

FANFAIL

TO FANFAIL

ALARM

TO FANFAIL

ALARM

TACHSET

FULLSPD

GND

DXP

(+3.0V TO +5.5V)

FAN

(5V OR 12V)

TH2

OT1

OT2

PWM_OUT

FAN_IN1

FAN_IN2

4.7kΩ

MAX6643_A_

TH1

(TACHOMETER MODE)

TO OVERTEMPERATURE ALARM

TL2

TL1

FANFAIL

TACHSET

FULLSPD

GND

DXP

(+3.0V TO +5.5V)

FAN

(5V OR 12V)

TH2

OT1

OT2

PWM_OUT

FAN_IN1

FAN_IN2

4.7kΩ

Figure 6. Using Two MAX6643s, Each Controlling a Separate Fan

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

MAX6643/MAX6644/MAX6645 1
Overtemperature Output 1

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Rainbow-electronics MAX6645 Manual do Utilizador Página 11

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