Block diagram – Rainbow Electronics MAX34441 User Manual

Page 12

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PMBus 5-Channel Power-Supply Manager

and Intelligent Fan Controller

MAX34441

12

Block Diagram

ADC

TEMP

SENSOR

FLASH

RAM

A1/PG/TACHSEL

A0/MUXSEL

MU

X

MSDA

V

SS

V

SS

V

SS

V

DD

REG18

REG25

MSCL

SDA

SCL

ALERT

FAULT

RST

CONTROL

POWER

CONTROL

2.5V

VREG

1.8V

VREG

4MHz

OSCILLATOR

SMBus

MASTER

INTERFACE

SMBus

SLAVE

INTERFACE

16-BIT

MAXQ

RISC CORE

SYSTEM

CONTROL

SIGNALS

PULSE-

WIDTH

MODULATOR

PWM0
PWM1
PWM2
PWM3
PWM4
PWM5

PSEN0

PSEN1

PSEN2

PSEN3

PSEN4

TACH5

RS+0

RS-0

RS+1

RS-1

RS+2

RS-2

RS+3

RS-3

RS+4

RS-4

RS+5

RS-5

FAN

TACHOMETER

INPUT

POWER-
SUPPLY
OUTPUT

ENABLES

MAX34441