Rainbow-electronics MAX34441 Bedienungsanleitung PDF herunterladen (Seite 10)

PMBus 5-Channel Power-Supply Manager

and Intelligent Fan Controller

MAX34441

Pin Description

Pin Configuration

PIN NAME FUNCTION

1 RS-4 Ground Reference for ADC4 Voltage Measurement

2, 21, 36 V

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 V

Supply Voltage. Bypass V

to V

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

RST

Reset Active-Low Input

14 MSDA Master I

C Data Input/Output. Open-drain output.

15 MSCL Master I

C 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

RS-3

RS+3

RS+0

RS-0

RS-4

PSEN1

PSEN2

PWM2

PWM0

REG25

PSEN0

PSEN3

REG18

1 2 4 5 6 7

27282930 26 24 23 22

CONTROL

PWM4

TACH5

PWM5

MSCL

RS+4

PWM1

A1/PG/TACHSEL

MSDA

RS-5

RS+5

RS-2

RS+2

A0/MUXSEL

PSEN4

SCL

PWM3

RS+1

RS-1

8 9 10

SDA

FAULT

ALERT

RST

TQFN

(6mm × 6mm × 0.75mm)

MAX34441

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 52 53

MAX34441 1

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