Datasheet

MAX34451 PMBus 16-Channel V/I Monitor and
12-Channel Sequencer/Marginer
www.maximintegrated.com
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Block Diagram
PMBus
CONTROL AND
MONITORING
ENGINE
PMBus
INTERFACE
ENABLE
FAULT0
PWM7
GPO19
FAULT1
PWM0–PWM6
GPO12–GPO18
PSEN0–PSEN9
GPO0–GPO9
ENABLE
SMBus
MASTER
MSDA
MSCL
MIN/MAX
AND AVERAGE
RESULTS
ADC
RESULTS
SRAM
NV FAULT
LOG
NV
CONFIGURATION
SEQUENCING
ENGINE
SAMPLE
AVERAGING
MAX34451
TEMP
SENSOR
V
REF
2.048V
AUTO
SEQUENCER
12-BIT
1Msps
ADC
MUX
8
VOLTAGE/CURRENT/TEMPERATURE
SMBus
SLAVE
POWER
CONTROL
1.8V
VREG
SDA
SCL
ALERT
ADDR
RST
V
DD
REG18
V
SS
PULLUP
CONTROL1
CONTROL0
V
DDA
2.048V
THRESHOLD EXCURSIONS
DIGITAL COMPARATORS
UNDERVOLTAGE WARNING
UNDERVOLTAGE FAULT
OVERVOLTAGE WARNING
OVERVOLTAGE FAULT
POWER–GOOD ON
POWER–GOOD OFF
OVERTEMPERATURE WARNING
OVERTEMPERATURE FAULT
GPI LOGIC ACTIVE–HIGH
GPI LOGIC ACTIVE–LOW
SEQ
FAULT2
SEQUENCING
ENABLE
ENABLE AND
ALARMS
POWER-SUPPLY ENABLE
PIN
FUNCTION
SELECT
ALARMS
POWER GOOD/GPI
MARGINING CONTROL
FAULT1
FAULT0
RS0–RS3/RS12–RS15
GPI0–GPI3/GPI12–GPI15
8
RS4–RS11
GPI4–GPI11
RSG0
RSG1
16
16
16
16
10
ENABLE AND
ALARMS
ENABLE
PULSE-WIDTH MODULATOR
PIN
FUNCTION
SELECT
7
16
16
PSEN10
GPO10
FAULT2
PSEN11
GPO11
SEQ