MAX6645 Просмотр технического описания (PDF) - Maxim Integrated

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производитель

MAX6645

Automatic PWM Fan-Speed Controllers with Overtemperature Output

Maxim Integrated 

Automatic PWM Fan-Speed Controllers with

Overtemperature Output

4.7kΩ

TO FANFAIL

ALARM

4.7kΩ

TO FANFAIL

ALARM

VDD (+3.0V TO +5.5V)

+VFAN (5V OR 12V)

1

TH1

2

TL2

3

TL1

4 FANFAIL

5 TACHSET

6 FULLSPD

7 GND

8 DXP

MAX6643

16

VDD

15

TH2

14

OT1

13

OT2

4.7kΩ 4.7kΩ

12

PWM_OUT

11 (TACHOMETER MODE)

FAN_IN1

10 (TACHOMETER MODE)

FAN_IN2

OT 9

VDD (+3.0V TO +5.5V)

N

TO OVERTEMPERATURE ALARM

+VFAN (5V OR 12V)

1

TH1

2

TL2

3 TL1

4 FANFAIL

5 TACHSET

6 FULLSPD

7 GND

16

VDD

15

TH2

MAX6643

14

OT1

13

OT2

4.7kΩ 4.7kΩ

12

PWM_OUT

FAN_IN1 11 (TACHOMETER MODE)

FAN_IN2 10 (TACHOMETER MODE)

8 DXP

OT 9

N

TO OVERTEMPERATURE ALARM

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

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