Datasheet

MAX34446
PMBus Power-Supply Data Logger
35Maxim Integrated
Typical Application Circuit/Block Diagram
MUX
FAULT
OUTPUTS
POWER-
GOOD
OUTPUTS
ADC
ENABLE
SCL
A0
A1
RAMFLASH
ACCESS FOR
CONFIGURATION
AND LOG DATA
NOTE: THE OPTIONAL KEEP-ALIVE CIRCUIT IS USED TO PROVIDE AN ORDERLY SYSTEM SHUTDOWN AND TO ALLOW THE DEVICE TO STORE ANY FAULTS THAT ARE OCCURRING
INTO FLASH MEMORY.
CURRENT
SENSE
AMPLIFIER
OPTIONAL KEEP-ALIVE
CIRCUIT (SEE NOTE)
5V
SMBus
SLAVE
INTERFACE
V
DD
REG25
VOLTAGE
CURRENT
RST
SDA
V
SS
V
SS
REG18
LOG
16-BIT
MAXQ
RISC
CORE
4MHz
OSCILLATOR
POWER
CONTROL
2.5V
V
REG
1.8V
V
REG
PU
RS+0
RS+1
RS-1
RS+2
RS-2
RS+3
RS+4
RS-4
TEMP
SENSOR
2 CHANNELS OF MONITORED
REMOTE TEMPERATURE
THERMAL
DIODE
THERMAL
DIODE
4 CHANNELS OF MONITORED
VOLTAGE OR CURRENT
PG0
PG1
PG2
PG3
SYNC
FAULT0
RS+5
RS-5
RS-3
RS-0
PU
MAX9938
FAULT1
FAULT2
FAULT3
FAULT4
FAULT5
FAULT6
MAX34446