MAX34441ETL+T datasheet(10/53 Pages) MAXIM

Part #	MAX34441ETL+T

Description	PMBus 5-Channel Power-Supply Manager and Intelligent Fan Controller

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Manufacturer	MAXIM [Maxim Integrated Products]

Direct Link	https://www.maximintegrated.com/en.html

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10 / 53 page

PMBus 5-Channel Power-Supply Manager

and Intelligent Fan Controller

10

Pin Description

Pin Configuration

NAME

FUNCTION

1

RS-4

Ground Reference for ADC4 Voltage Measurement

2, 21, 36

VSS

Digital-Supply Return Node (Ground)

3

RS+4

Power-Supply ADC Voltage-Sense Input, Measurement Relative to RS-4

4

RS-3

Ground Reference for ADC3 Voltage Measurement

5

RS+3

Power-Supply ADC Voltage-Sense Input, Measurement Relative to RS-3

6

RS+0

Power-Supply ADC Voltage-Sense Input, Measurement Relative to RS-0

7

RS-0

Ground Reference for ADC0 Voltage Measurement

8

RS+1

Power-Supply ADC Voltage-Sense Input, Measurement Relative to RS-1

9

VDD

Supply Voltage. Bypass VDD to VSS with a 0.1FF capacitor.

10

RS-1

Ground Reference for ADC1 Voltage Measurement

11

RS+2

Power-Supply ADC Voltage-Sense Input, Measurement Relative to RS-2

12

RS-2

Ground Reference for ADC2 Voltage Measurement

13

RST

Reset Active-Low Input

14

MSDA

Master I2C Data Input/Output. Open-drain output.

15

MSCL

Master I2C Clock Output. Open-drain output.

16

PWM5

Fan PWM Output #5. CMOS push-pull output. Low when the fan is disabled. A 100% duty cycle

implies this pin is continuously high.

17

TACH5

Fan Tachometer Input

18

PWM4

PWM Margin Output #4. High impedance when the margining is disabled. A 100% duty cycle implies

this pin is continuously high.

19

PSEN4

Power-Supply Enable Output #4. Programmable through MFR_MODE for either active high or active

low and either open drain or CMOS push-pull.

TOP VIEW

35

36

34

33

12

11

13

14

1

2

4

5

6

7

27

28

29

30

26

24 23 22

CONTROL

VSS

PWM4

TACH5

PWM5

MSCL

3

25

37

A1/PG/TACHSEL

MSDA

38

39

40

RS-5

RS+5

RS-2

RS+2

EP

A0/MUXSEL

32

15

PSEN4

SCL

31

16

17

18

19

20 PWM3

8

9

10

21

SDA

FAULT

ALERT

RST

+

TQFN

(6mm × 6mm × 0.75mm)

MAX34441

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MAX34441ETL+T Datasheet(PDF) 10 Page - Maxim Integrated Products

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